SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549
                                  ------------

                                  SCHEDULE 13D
                                 (Rule 13d-101)

         INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO 13d-
             1(a) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(a)

                              (Amendment No. __)(1)
                              Halsey Drug Co., Inc.
                              ---------------------
                                (Name of Issuer)

                     COMMON STOCK, PAR VALUE $.01 PER SHARE
                     --------------------------------------
                         (Title of Class of Securities)

                                   406369 10 8
                                   -----------
                                 (CUSIP Number)

                              George Abrahams, Esq.
                    Wolf, Block, Schorr and Solis-Cohen, LLP
                                 250 Park Avenue
                            New York, New York 10177
                             Tel. No. (212) 986-1116
                             -----------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 March 10, 1998
                                 --------------
             (Date of Event Which Requires Filing of This Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the acquisition  which is the subject of this Schedule 13D, and is filing
this schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

     Note. Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13d-1 (a) for other parties to whom copies are to
be sent.

                       (Continued on the following pages)

                              (Page 1 of 107 Pages)

- --------
(1) The  remainder  of this  cover  page  shall be  filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to the "filed" for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).





CUSIP No. 406369-10-8               13D                     Page 2 of 107 Pages



- --------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       Galen Partners III, L.P.

- --------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [X]


- --------------------------------------------------------------------------------
   3   SEC USE ONLY



- --------------------------------------------------------------------------------
   4   SOURCE OF FUNDS*

       WC

- --------------------------------------------------------------------------------
   5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
       ITEMS 2(d) OR 2(e)                                         [  ]


- --------------------------------------------------------------------------------
   6   CITIZENSHIP OR PLACE OF ORGANIZATION

       Delaware

- --------------------------------------------------------------------------------
   NUMBER OF      7    SOLE VOTING POWER
     SHARES            13,397,926
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      8    SHARED VOTING POWER
      EACH             0
   REPORTING      --------------------------------------------------------------
     PERSON       9    SOLE DISPOSITIVE POWER
      WITH             13,397,926
                  --------------------------------------------------------------
                  10   SHARED DISPOSITIVE POWER
                       0

- --------------------------------------------------------------------------------
  11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       13,397,926

- --------------------------------------------------------------------------------
  12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [ ]

- --------------------------------------------------------------------------------
  13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

       46.9%

- --------------------------------------------------------------------------------
  14   TYPE OF REPORTING PERSON*

       PN

- --------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 406369-10-8               13D                     Page 3 of 107 Pages


- --------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       Galen Employee Fund III, L.P.

- --------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [X]


- --------------------------------------------------------------------------------
   3   SEC USE ONLY



- --------------------------------------------------------------------------------
   4   SOURCE OF FUNDS*

       WC

- --------------------------------------------------------------------------------
   5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
       ITEMS 2(d) OR 2(e)                                         [  ]


- --------------------------------------------------------------------------------
   6   CITIZENSHIP OR PLACE OF ORGANIZATION

       Delaware

- --------------------------------------------------------------------------------
   NUMBER OF      7    SOLE VOTING POWER
     SHARES            58,758
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      8    SHARED VOTING POWER
      EACH             0
   REPORTING      --------------------------------------------------------------
     PERSON       9    SOLE DISPOSITIVE POWER
      WITH             58,758
                  --------------------------------------------------------------
                  10   SHARED DISPOSITIVE POWER
                       0

- --------------------------------------------------------------------------------
  11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       58,758

- --------------------------------------------------------------------------------
  12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [ ]

- --------------------------------------------------------------------------------
  13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

       .2%

- --------------------------------------------------------------------------------
  14   TYPE OF REPORTING PERSON*

       PN

- --------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 406369-10-8               13D                     Page 4 of 107 Pages


- --------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       Galen Partners International III, L.P.

- --------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [X]


- --------------------------------------------------------------------------------
   3   SEC USE ONLY



- --------------------------------------------------------------------------------
   4   SOURCE OF FUNDS*

       WC

- --------------------------------------------------------------------------------
   5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
       ITEMS 2(d) OR 2(e)                                         [ ]


- --------------------------------------------------------------------------------
   6   CITIZENSHIP OR PLACE OF ORGANIZATION

       Delaware

- --------------------------------------------------------------------------------
   NUMBER OF      7    SOLE VOTING POWER
     SHARES            1,484,731
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      8    SHARED VOTING POWER
      EACH             0
   REPORTING      --------------------------------------------------------------
     PERSON       9    SOLE DISPOSITIVE POWER
      WITH             1,484,731
                  --------------------------------------------------------------
                  10   SHARED DISPOSITIVE POWER
                       0

- --------------------------------------------------------------------------------
  11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       1,484,731

- --------------------------------------------------------------------------------
  12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [ ]

- --------------------------------------------------------------------------------
  13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

       5.2%

- --------------------------------------------------------------------------------
  14   TYPE OF REPORTING PERSON*

       PN

- --------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!





Item 1. Security and Issuer.

     This  Statement  covers a total of 14,941,415  shares of Common Stock,  par
value $.01 per share (the "Common Stock"),  of Halsey Drug Co., Inc., a New York
corporation (the "Company"). The Reporting Persons (as defined in Item 2 hereof)
as of the date hereof hold (i) 5%  Convertible  Senior  Secured  Debentures  due
March 15, 2003, of the Company in the aggregate  principal amount of $17,200,000
(the  "Debentures"),  which  as of the  date  hereof  are  convertible  into  an
aggregate of 11,466,667  shares of Common Stock,  (ii) warrants for the purchase
of an aggregate of 1,737,374 shares of Common Stock at an initial purchase price
of $1.50 per share (the "$1.50 Warrants") and (iii) warrants for the purchase of
an aggregate of 1,737,374 shares of Common Stock at an initial purchase price of
$2.375 per share (the "$2.375  Warrants" and together  with the $1.50  Warrants,
the   "Warrants").   The   Debentures  and  Warrants  are  referred  to  herein,
collectively, as the "Securities."

     The  Company's  principal  executive  offices are  located at 1827  Pacific
Street, Brooklyn, New York 11233.

Item 2. Identity and Background.

     This statement is being filed by Galen Partners III, L.P. ("Galen"),  Galen
Partners  International  III, L.P.  ("Galen  Intl") and Galen Employee Fund III,
L.P.  ("GEF"),  each  of  which  is a  Delaware  limited  partnership  (each,  a
"Reporting  Person" and  collectively,  the  "Reporting  Persons").  Each of the
Reporting Persons is a private investment fund engaged in the business of making
investments in the  securities of companies in the health care  industry.  Under
the  definition  of  "beneficial  owner"  in Rule  13d-3  promulgated  under the
Securities Exchange Act of 1934 (the "Act"), each Reporting Person may be deemed
to  beneficially  own the Securities  owned by the other  Reporting  Persons and
therefore may be deemed under Rule 13d-5 promulgated under Act to be a member of
a "group" with the other Reporting Persons.  The filing of this statement is not
intended as, and should not be deemed,  an  acknowledgment  of shared  voting or
dispositive  power by any Reporting Person with respect to any of the Securities
held by any other Reporting Person.

     William R. Grant,  Bruce F. Wesson, L. John Wilkerson,  David Jahns,  Srini
Conjeevaram  and Zubeen  Shroff are all  natural  persons and are the members of
Claudius,  L.L.C.  ("Claudius"),  the general partner of each of Galen and Galen
Intl.  Bruce F. Wesson is the  President of Wesson  Enterprises,  Inc.  ("Wesson
Enterprises"),  which is the  general  partner  of GEF.  Mr.  Wesson is the sole
executive  officer,  sole director and sole  shareholder of Wesson  Enterprises.
Each of Messrs. Grant, Wesson,  Wilkerson,  Jahns and Shroff are citizens of the
United States of America;  Mr. Conjeevaram is a lawful permanent resident of the
United  States  of  America  and a  citizen  of India.  Messrs.  Grant,  Wesson,
Wilkerson,  Jahns,  Conjeevaram  and Shroff,  together  with Claudius and Wesson
Enterprises, are referred to herein, collectively, as the "Related Persons."

     The  principal  place of business and the  principal  office of each of the
Reporting  Persons and Related Persons are at 610 Fifth Avenue,  5th Floor,  New
York, New York 10020.  During the last five years, none of the Reporting Persons
or the Related Persons has been (i) convicted in a criminal proceeding or (ii) a
party to a civil  proceeding of a judicial or  administrative  body of competent
jurisdiction  and as a result of such proceeding has been subject to a judgment,
decree  or final  order  enjoining  future  violations  of,  or  prohibiting  or
mandating activities subject to, federal or state securities laws or finding any
violation with respect to such laws.







Item 3. Source and Amount of Funds or Other Consideration.

     The funds for the  acquisition  of the  Securities  were allocated from the
working  capital of the  Reporting  Persons and were not  obtained by means of a
loan or other borrowing arrangement.

     The Securities  were acquired by the Reporting  Persons at a purchase price
equal to the principal amount of Debentures  comprising a part of the Securities
which were  purchased.  The  purchase  prices paid by each of Galen Intl and GEF
were  $15,423,195,  $1,709,167 and $67,638,  respectively,  and were all paid in
cash.

Item 4. Purpose of Transaction.

     The Company,  the Reporting  Persons and certain other persons have entered
into a Debenture and Warrant Purchase Agreement, dated as of March 10, 1998 (the
"Purchase  Agreement")  providing for the purchase by the Reporting  Persons and
other persons  (collectively,  the  "Investors")  of an aggregate of $20,800,000
principal  amount of  Debentures,  $1.50  Warrants to purchase an  aggregate  of
2,101,010 shares of Common Stock and $2.375 Warrants to purchase an aggregate of
2,101,010  shares of Common Stock and the issuance and delivery to the Investors
of instruments  evidencing the Debentures and Warrants.  The Debentures  were at
the time of issuance  convertible  into Common Stock at the rate of one share of
Common Stock for each $1.50  principal  amount of  Debentures  (an  aggregate of
13,866,666 shares of Common Stock for the Debentures issued to all Investors and
11,466,667  shares of Common Stock for the  Debentures  issued to the  Reporting
Persons). The $1.50 Warrants and $2.375 Warrants issued to the Reporting Persons
are exercisable for a period of seven years commencing on the issue date thereof
for  an  aggregate  of  1,737,374   and   1,737,374   shares  of  Common  Stock,
respectively.

     The conversion  rates of the Debentures  into Common Stock and the exercise
prices of the Warrants and the number of shares of Common  Stock  issuable  upon
conversion or exercise  thereof are subject to adjustment to protect the holders
thereof against dilution. In addition,  the conversion rates and exercise prices
of such  Securities  are  subject  to a  downward  adjustment  in the  event the
liabilities of the Company and its  subsidiaries  as of February 28, 1998 exceed
$27,640,000.

     Pursuant to the Purchase Agreement, the Purchasers are entitled to and have
designated two persons to become  directors of the Company and such persons were
elected as directors on March 10, 1998.  The  Purchasers  also have the right to
designate  an  additional  person  to be a  member  of the  Board  of  Directors
commencing  with the first Annual Meeting of  Shareholders  of the Company to be
held after the closing of the Purchase  Agreement,  which the Company has agreed
in the  Purchase  Agreement  to hold on or  prior to June 30,  1998  (the  "Next
Shareholders Meeting").

     The Company also agreed in the  Purchase  Agreement to present for approval
by  shareholders  at the Next  Shareholders  Meeting,  proposals  to  amend  the
Company's  Certificate  of  Incorporation  to increase the number of  authorized
shares of Common Stock from 20,000,000 to 40,000,000  Shares and to provide that
the  Debentures  shall have the right to vote as part of a single class with all
holders  of Common  Stock of the  Company  on all  matters  with the  holders of
Debentures  to have such number of votes as shall equal the number of votes they
would have had they converted the entire  principal  amount of their  Debentures
into Common Stock immediately prior to the record date relating to such vote.

     In accordance  with the Purchase  Agreement,  certain  shareholders  of the
Company have given to a designee of Galen a proxy to vote all of their shares on
the foregoing proposals at the Next Shareholders  Meeting. The Reporting Persons
and the proxy holder disclaim beneficial ownership of






such shares and such shares are not reported herein as beneficially owned by any
of the Reporting Persons.

     Pursuant to the Purchase  Agreement each Investor,  including the Reporting
Persons,  has  been  given  a  right  of  first  refusal,   subject  to  certain
limitations,  to purchase additional equity securities of the Company (including
convertible  debt  securities)  offered for sale by the  Company.  Such right is
exercisable  on a pro rata basis among all  Investors  and certain other persons
holding other convertible  debentures of the Company. In addition, the Investors
were  granted an option to purchase on a pro rata basis for a purchase  price of
$5,000,000  additional  Securities on the same terms and conditions as set forth
in the  Purchase  Agreement.  The  option is  exercisable  by the  holders  of a
majority in principal amount of the outstanding  Debentures.  The option expires
18 months  after the date of the  Purchase  Agreement.  None of such  additional
Securities  is  being  reported  herein  as  beneficially  owned  by  any of the
Reporting Persons.

     Each  of  the  Reporting  Persons  acquired  its  Securities  as  long-term
investments. Except as set forth herein, none of the Reporting Persons presently
intends  to  acquire  additional  securities  of the  Company.  However,  if any
Reporting Person believes that further  investment in the Company is attractive,
whether  because of the market price of the  Company's  securities or otherwise,
such  Reporting  Person  may  acquire  additional  securities  of  the  Company.
Similarly,  any Reporting  Person,  subject to applicable law and depending upon
market and other factors, may from time to time determine to dispose some or all
of the Securities.

     Except as set forth herein, the Reporting Persons have no present intention
to  engage  or  cause  the  Company  to  engage  in any of the  transactions  or
activities  specified in  paragraphs  (a) through (j) of Item 4 of Schedule 13D.
However,  each  Reporting  Person  reserves the right,  either  individually  or
together with other persons, to act in respect of its interest in the Company in
accordance with its best judgment in light of the circumstances existing at that
time.

Item 5. Interest in Securities of the Issuer.

     (a) Each  Reporting  Person  owns or has the right to acquire the number of
Securities shown opposite its name:

========================================================================================================================= (1) (2) (3) (4) (5) - ------------------------------------------------------------------------------------------------------------------------- Number of Shares Number of Shares of Common Stock Percentage of of Common Stock which may be Outstanding into which acquired pursuant Shares of Debentures are to exercise of Total of Columns Common Stock Reporting Person Convertible Warrants (2) and (3) (see Note below) - ------------------------------------------------------------------------------------------------------------------------- Galen 10,282,130 3,115,780 13,397,926 46.9% - ------------------------------------------------------------------------------------------------------------------------- Galen Intl 1,139,445 345,286 1,484,731 5.2% - ------------------------------------------------------------------------------------------------------------------------- GEF 45,092 13,664 58,758 0.2% - ------------------------------------------------------------------------------------------------------------------------- Total 11,466,667 3,474,730 14,941,415 52.3% =========================================================================================================================
Note: The percentages shown in each row of column (5) were calculated, for each respective row, by (i) adding the totals in the bottom row of columns (2) and (3) to 13,597,423 (the number of shares of Common Stock outstanding as of February 28, 1998, such number having been provided by the Company to the Reporting Persons) (the "Total Adjusted Outstanding Shares"), then (ii) dividing the amount in column (4) by the Total Adjusted Outstanding Shares, and then (iii) expressing such quotient in terms of a percentage. (b) Each Reporting Person possesses the sole power to vote and to dispose of its respective Securities. (c) See Item 3. (d) None. (e) Not applicable. Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer. See Item 4, which is incorporated herein by reference. Item 7. Material to be filed as Exhibits. 1. Joint Filing Agreement, dated March 20, 1998, by the Reporting Persons and the Related Persons. 2. Purchase Agreement 3. Form of Debenture 4. Form of $1.50 Warrant 5. Form of $2.375 Warrant 6. Form of Proxy to Vote on Certain Matters at Next Shareholders Meeting SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in the statement is true, complete and correct. Dated: March 20, 1998 GALEN PARTNERS III, L.P. By: Claudius, L.L.C., General Partner By: /s/ Bruce F. Wesson ------------------------------------------ Bruce F. Wesson, Managing Member GALEN PARTNERS INTERNATIONAL III, L.P. By: Claudius, L.L.C., General Partner By: /s/ Bruce F. Wesson ------------------------------------------ Bruce F. Wesson, Managing Member GALEN EMPLOYEE FUND III, L.P. By: Wesson Enterprises, Inc., General Partner By: /s/ Bruce F. Wesson ------------------------------------------ Bruce F. Wesson, President CLAUDIUS, L.L.C. By: /s/ Bruce F. Wesson ------------------------------------------ Bruce F. Wesson, Managing Member WESSON ENTERPRISES, INC. By: /s/ Bruce F. Wesson ------------------------------------------ Bruce F. Wesson, President /s/ William R. Grant ------------------------------------------ William R. Grant /s/ Bruce F. Wesson ------------------------------------------ Bruce F. Wesson /s/ L. John Wilkerson ------------------------------------------ L. John Wilkerson /s/ David Jahns ------------------------------------------ David Jahns /s/ Srini Conjeevaram ------------------------------------------ Srini Conjeevaram /s/ Zubeen Shroff ------------------------------------------ Zubeen Shroff


                                    EXHIBIT 1

                             JOINT FILING AGREEMENT


     In accordance with Rule 13d-1(f) under the Securities Exchange Act of 1934,
the persons named below agree to the joint filing on behalf of each of them of a
Statement  on Schedule  13D  (including  exhibits and  schedules  thereto)  with
respect to the  acquisition  of, or the right to  acquire,  the Common  Stock of
Halsey Drug Co., Inc., a New York corporation.  This Agreement shall be included
as  an  Exhibit  to  such  joint  filing.  In  evidence  thereof,  each  of  the
undersigned, being duly authorized, hereby executes this Agreement this 20th day
of March, 1998.

                                     GALEN PARTNERS III, L.P.
                                     By: Claudius, L.L.C., General Partner



                                     By: /s/ Bruce F. Wesson
                                     ------------------------------------------
                                     Bruce F. Wesson, Managing Member
                               
                               
                                     GALEN PARTNERS
                                     INTERNATIONAL III, L.P.
                                     By: Claudius, L.L.C., General Partner
                               
                               
                               
                                     By: /s/ Bruce F. Wesson
                                     ------------------------------------------
                                     Bruce F. Wesson, Managing Member
                               
                               
                                     GALEN EMPLOYEE FUND III, L.P.
                                     By: Wesson Enterprises, Inc.,
                                     General Partner
                               
                               
                               
                                     By: /s/ Bruce F. Wesson
                                     ------------------------------------------
                                     Bruce F. Wesson, President
                               
                               
                                     CLAUDIUS, L.L.C.
                               
                               
                               
                                     By: /s/ Bruce F. Wesson
                                     ------------------------------------------
                                     Bruce F. Wesson, Managing Member
                               
                               
                                     WESSON ENTERPRISES, INC.
                               
                                     By: /s/ Bruce F. Wesson
                                     ------------------------------------------
                                     Bruce F. Wesson, President
                               
                             







                                     /s/ William R. Grant
                                     ------------------------------------------
                                     William R. Grant
                                   
                                   
                                   
                                     /s/ Bruce F. Wesson
                                     ------------------------------------------
                                     Bruce F. Wesson
                                   
                                   
                                   
                                     /s/ L. John Wilkerson
                                     ------------------------------------------
                                     L. John Wilkerson
                                   
                                   
                                   
                                     /s/ David Jahns
                                     ------------------------------------------
                                     David Jahns
                                   
                                   
                                   
                                     /s/ Srini Conjeevaram
                                     ------------------------------------------
                                     Srini Conjeevaram
                                   
                                   
                                   
                                     /s/ Zubeen Shroff
                                     ------------------------------------------
                                     Zubeen Shroff
                                   
                               


                                    EXHIBIT 2

                                                   March 10, 1998


To the Purchaser(s) Set Forth on Exhibit A hereto:


     HALSEY DRUG CO., INC., a New York corporation (the "Company"),  agrees with
you as follows:

                                    ARTICLE I

            AUTHORIZATION OF THE SECURITIES; ADJUSTMENT OF CONVERSION
                            PRICE AND WARRANT PRICES

     1.1. Authorization of Securities.  The Company represents that it has taken
all corporate  action necessary to authorize the issuance and sale of (a) its 5%
Convertible  Senior  Secured  Debentures  due  March 15,  2003 in the  aggregate
principal amount of $20,800,000 (the "Debentures"),  (b) warrants to purchase an
aggregate of 2,101,010 shares of Common Stock, par value $.01 per share ("Common
Stock"),  of the Company  initially  at a price of $2.375 per share (the "$2.375
Warrants")  and (c) warrants to purchase an  aggregate  of  2,101,010  shares of
Common Stock  initially at a price of $1.50 per share (the "$1.50  Warrants" and
together with the $2.375  Warrants,  the  "Warrants").  The  Debentures  and the
Warrants  (collectively,  the  "Securities")  are to be  sold  pursuant  to this
Agreement to you (each of you is sometimes referred to herein as a "Purchaser").
Interest  on the  Debentures  is payable  at the rate of 5% per  annum,  as more
particularly  specified in the form of Debenture  attached  hereto as Exhibit B.
Each  Debenture  is  convertible  in whole or in part  from  time to time into a
number of shares of Common  Stock  initially  at the rate of one share of Common
Stock for each $1.50 in principal  amount of the Debenture to be converted.  For
purposes of this  Agreement,  the term "Shares"  shall mean the shares of Common
Stock which may be issued upon  conversion  of all or a portion of the principal
amount of the  Debentures and the shares of Common Stock that may be issued from
time to time  pursuant to the exercise of the  Warrants.  The term "Shares" does
not  include  any other  shares of Common  Stock or other  capital  stock of the
Company.

     1.2. Adjustment of Conversion Price and Warrant Prices.

     (a) The  prices at which  Shares may be  acquired  upon  conversion  of the
Debentures and exercise of the Warrants (the "Conversion Price" and the "Warrant
Prices",  respectively)  are  subject to  adjustment  as set forth  therein.  In
addition,  the initial Conversion Price and Warrant Prices shall each be subject
to a downward adjustment as provided in Section 1.2(b).

     (b) The Company  shall  prepare and cause  Grant  Thornton  LLP to review a
schedule of liabilities of the Company and its  subsidiaries  as of February 28,
1998. The Company shall deliver to the Purchasers  such schedule  accompanied by
the report of Grant  Thornton LLP on its review thereof not later than March 10,
1998 (the "Reviewed Liability






Schedule").  If the  total  liabilities  set  forth  in the  Reviewed  Liability
Schedule  exceeds  $27,640,000,  then, to the extent the total  liabilities  set
forth on the Reviewed Liability Schedule exceeds $27,140,000 (which is the total
estimated  liabilities  of the Company and its  subsidiaries  as of February 28,
1998 as set  forth on a  schedule  of  estimated  liabilities  delivered  to the
Purchasers  by the  Company  prior  to the  date  hereof),  each of the  initial
Conversion  Price and the initial  Warrant  Prices shall be reduced by an amount
equal to the quotient  obtained by dividing such excess by 13,597,423  (which is
the number of shares of Common Stock of the Company  outstanding  as of February
28,  1998).  For  example,  if the  total  liabilities  of the  Company  and its
subsidiaries  as set forth in the Reviewed  Liability  Schedule is  $29,140,000,
then the initial  Conversion  Price and  initial  Warrant  Prices  shall each be
reduced by $.147  ($2,000,000  divided by 13,597,423)  and after such reductions
will be $1.353, $1.353 and $2.228, respectively.

                                   ARTICLE II

             SALE AND PURCHASE OF THE SECURITIES; SECURITY DOCUMENTS

     2.1.  Sale  and  Purchase  of the  Securities.  Subject  to the  terms  and
conditions  hereof  and  in  reliance  on  the  representations  and  warranties
contained  herein,  or made pursuant hereto,  the Company will issue and sell to
each  Purchaser  and/or such  Purchaser's  designees,  and each  Purchaser  will
purchase  from the  Company,  on the Closing  Date  specified  in Article 3, the
Securities for the purchase prices set forth opposite such  Purchaser's  name on
Exhibit A.

     2.2.  Company  Security  Documents.  All of the  obligations of the Company
under the Debentures shall be secured by the following:

          (a) A lien on all the personal  property and assets of the Company now
     existing or  hereinafter  acquired  granted  pursuant to a Company  General
     Security  Agreement  dated of even date  herewith  between  the Company and
     Galen  Partners  III,  L.P.  ("Galen"),  as agent for the  Purchasers  (the
     "Company General Security  Agreement"),  which,  except for Permitted Liens
     (as hereinafter defined), shall be a first lien.

          (b)  Collateral  assignments  of  all  leases,   contracts,   patents,
     copyrights,  trademarks and service marks of the Company (collectively, the
     "Company Collateral Assignments").

     2.3. Guaranties. All of the obligations of the Company under the Debentures
shall be guaranteed  pursuant to  Continuing  Unconditional  Secured  Guaranties
(each, a "Guaranty" and collectively, the "Guaranties") by each of the following
subsidiaries of the Company (each, a "Guarantor"):

          (a)  Houba, Inc. ("Houba");
          (b)  Halsey Pharmaceuticals, Inc.;
          (c)  Indiana Fine Chemicals Corporation;
          (d)  Cenci Powder Products, Inc. ("CPP"); and


                                        2




          (e)  H.R. Cenci Laboratories, Inc. ("HR Cenci")

     2.4. Guarantor Security Documents. All of the obligations of the Guarantors
under the Guaranties shall be secured by the following:

          (a) A  lien  on  all  of  the  personal  property  and  assets  of the
     respective  Guarantors  now  existing  or  hereinafter  acquired,   granted
     pursuant to a  Guarantors  General  Security  Agreement  dated of even date
     herewith between the Guarantors and Galen, as agent for the Purchasers (the
     "Guarantors Security Agreement"),  which, except for Permitted Liens, shall
     be a first lien.

          (b)  Collateral  assignments  of  all  leases,   contracts,   patents,
     copyrights,  trademarks and service marks of the Guarantors  (collectively,
     "Guarantor Collateral Assignments").

          (c) A first mortgage  granted by Houba on real property owned by Houba
     located at 16235 State Road 17, Culver, Indiana (the "Culver Mortgage").

          (d) A first  mortgage  granted  by CPP and HR Cenci  on real  property
     owned by HR Cenci located at 152 North  Broadway,  Fresno,  California (the
     "Fresno Mortgage" and together with the Culver Mortgage, the "Mortgages").

                                   ARTICLE III

                                     CLOSING

     The closing of the purchase and sale of the Securities (the "Closing") will
take place at the offices of Wolf,  Block,  Schorr and Solis-Cohen LLP, 250 Park
Avenue,  New York,  New York 10177  simultaneously  with the  execution  of this
Agreement,  or such other place, time and date as shall be mutually agreed to by
the Company and the Purchaser.  Such time and date is herein called the "Closing
Date."

     On the  Closing  Date  there  will be  delivered  to each  Purchaser  (a) a
Debenture dated the Closing Date, in the principal amount set forth opposite the
name of such Purchaser in Exhibit A, (b) a warrant  certificate or  certificates
substantially  in the form of  Exhibit C  registered  in such  Purchaser's  name
representing the right to purchase for $2.375 per Share the number of Shares set
forth  opposite  the  name of such  Purchaser  on  Exhibit  A and (c) a  warrant
certificate or certificates  substantially in the form of Exhibit D representing
the  right to  purchase  for $1.50  per  Share  the  number of Shares  set forth
opposite the name of such Purchaser on Exhibit A. The number of Shares which may
be purchased  upon exercise of the Warrants is subject to adjustment as provided
therein.  The foregoing  Securities  shall be delivered by the Company,  against
delivery by each Purchaser to the Company of an unendorsed certified or official
bank check  payable to the order of the  Company  drawn upon or issued by a bank
which is a member of the New York Clearinghouse for banks (or wire transfer) for
the amount set forth opposite the name of such Purchaser on Exhibit A.


                                       3


                                   ARTICLE IV

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

     The Company represents and warrants to you as follows:

     4.1. Organization and Existence, etc. Except as set forth in Section 4.1 of
the  Schedule  of  Exceptions  attached  hereto as Exhibit E (the  "Schedule  of
Exceptions") or in the Company's  Annual Report on Form 10-K for the fiscal year
ended December 31, 1996, as amended,  or the Company's  Quarterly Report in Form
10-Q for the quarter  ended  September  30, 1997  (collectively,  the  "Selected
Reports"),  the Company is a corporation duly organized and validly existing and
in good standing under the laws of its  jurisdiction of  incorporation,  and has
all  requisite  corporate  power and  authority  to carry on its business as now
conducted and proposed to be conducted;  the Company has all requisite corporate
power and  authority to enter into this  Agreement,  to issue the  Securities as
contemplated herein and to carry out and perform its obligations under the terms
and  conditions  of this  Agreement.  Except as set forth in Section  4.1 of the
Schedule of Exceptions, the Company does not own or lease any property or engage
in any activity in any  jurisdiction  which might  require  qualification  to do
business as a foreign  corporation in such jurisdiction and where the failure to
so qualify would have a material  adverse  effect on the financial  condition of
the Company and its Subsidiaries,  taken as a whole, or subject the Company to a
material  liability.  To the extent the Company has not qualified to do business
in such jurisdictions,  it will prepare and file such necessary  applications or
documents to be filed with the appropriate  authorities in such jurisdictions to
obtain such  qualifications  within 60 days.  The Company has furnished you with
true,  correct and complete copies of its Certificate of Incorporation,  By-Laws
and all amendments thereto to date.

     4.2. Subsidiaries and Affiliates. Section 4.2 of the Schedule of Exceptions
sets  forth  the  name,   jurisdiction  of  incorporation   and  authorized  and
outstanding  capitalization  of each entity in which the Company owns securities
having a majority of the voting  power in the  election of  directors or persons
serving  equivalent  functions  (each, a  "Subsidiary").  Except as set forth in
Section 4.2 of the Schedule of Exceptions, the Company has, and upon the Closing
will have, no  Subsidiaries  and does not, and upon the Closing will not, own of
record or beneficially any capital stock or equity interest or investment in any
corporation,  association or business entity. Except as set forth in Section 4.2
of the Schedule of Exceptions or in the Selected  Reports,  each Subsidiary is a
corporation  duly organized and validly  existing and in good standing under the
laws of its jurisdiction of incorporation and has all requisite  corporate power
and  authority  to carry on its  business as now  conducted  and  proposed to be
conducted.  Except as set forth in Section 4.2 of the Schedule of Exceptions, no
Subsidiary owns or leases


                                       4



any property or engages in any activity in any jurisdiction  which might require
such  Subsidiary  to qualify to do  business  as a foreign  corporation  in such
jurisdiction  and where the failure to so qualify would have a material  adverse
effect on the financial condition of the Company and its Subsidiaries,  taken as
a whole, or subject such Subsidiary to a material  liability.  To the extent any
Subsidiary  has not  qualified  to do  business in such  jurisdictions,  it will
prepare and file such necessary  applications  or documents to be filed with the
appropriate  authorities  in such  jurisdictions  to obtain such  qualifications
within 60 days.

     4.3. Capitalization.

     (a) As of the date hereof, the Company's  authorized capital stock consists
of  20,000,000  shares  of Common  Stock,  par value  $.01 per  share,  of which
13,597,423  shares are  outstanding  and  4,672,868  of which are  reserved  for
issuance  for  the  purposes  set  forth  in  Section  4.3  of the  Schedule  of
Exceptions,  2,179,312 of which have been reserved for issuance upon  conversion
of the  Debentures  and none of which  have  been  reserved  for  issuance  upon
exercise of the  Warrants.  As of the date  hereof,  the Company  holds  449,603
shares of Common Stock in its treasury which shares may be reissued.

     (b) All the issued and  outstanding  shares of capital stock of the Company
shall, as of the Closing, (i) have been duly authorized and validly issued, (ii)
be fully paid and  nonassessable and (iii) have been offered,  issued,  sold and
delivered  by the  Company  in  compliance  with  applicable  Federal  and state
securities laws.  Other than as set forth in Section 4.3(a),  Section 4.3 of the
Schedule  of  Exceptions  or the  Selected  Reports,  there  are no  outstanding
preemptive,  conversion or other rights, options, warrants, calls, agreements or
commitments  granted or issued by or binding upon the Company,  for the purchase
or acquisition of any shares of its capital stock or securities convertible into
or exercisable or exchangeable for capital stock.

     4.4. Authorization. All corporate action on the part of the Company and the
directors  and  stockholders  of the Company  necessary  for the  authorization,
execution,  delivery and  performance  by the Company of this  Agreement and the
transactions  contemplated  herein,  and for  the  authorization,  issuance  and
delivery of the Securities,  has been taken or will have been taken prior to the
Closing.

     4.5.  Binding  Obligations;   No  Material  Adverse  Contracts,  etc.  This
Agreement  is a valid and  binding  obligation  of the  Company  enforceable  in
accordance with its terms. Except as set forth in Section 4.5 of the Schedule of
Exceptions,  the  execution,  delivery  and  performance  by the Company of this
Agreement and  compliance  herewith will not result in any violation of and will
not conflict with, or result in a breach of any of the terms of, or constitute a
default  under,  any  provision  of state or Federal law to which the Company is
subject,  the  Certificate  of  Incorporation,  as amended,  or the By-Laws,  as
amended,  of the Company,  or any mortgage,  indenture,  agreement,  instrument,
judgment,  decree,  order,  rule or regulation or other restriction to which the
Company is a party or by which it is bound, or except for liens on the assets of
the Company  created in favor of the  Purchasers,  result in the creation of any
mortgage,  pledge,  lien,  encumbrance  or charge upon any of the  properties or
assets of the Company


                                       5



pursuant to any such term. Except as set forth in Section 4.5 of the Schedule of
Exceptions or the Selected  Reports,  no  stockholder of the Company has or will
have any preemptive  rights or rights of first refusal by reason of the issuance
of the  Securities  or  Shares  issuable  upon  conversion  or  exercise  of the
Securities.

     4.6.  Compliance with Instruments,  etc. Except as set forth in Section 4.6
of the Schedule of Exceptions or the Selected  Reports,  neither the Company nor
any Subsidiary is (a) in default past any grace, notice or cure period under any
indenture,  agreement  or  instrument  to  which it is a party or by which it is
bound, (b) in violation of its Certificate of  Incorporation,  By-Laws or of any
applicable  law, (c) in default with respect to any order,  writ,  injunction or
decree of any  court,  administrative  agency or  arbitrator,  or (d) in default
under any order,  license,  regulation or demand of any government agency, which
default or  violation  would  materially  and  adversely  affect  the  business,
properties  or  condition  (financial  or  otherwise)  of the  Company  and  its
Subsidiaries taken as a whole.

     4.7.  Litigation.  Except as set forth in Section  4.7 of the  Schedule  of
Exceptions  or the  Selected  Reports,  there is no action,  suit or  proceeding
pending, or, to the knowledge of the Company, threatened, against the Company or
any  Subsidiary  before any court,  administrative  agency or  arbitrator or any
action,  suit or  proceeding  pending,  or,  to the  knowledge  of the  Company,
threatened,  which  challenges  the  validity of any action taken or to be taken
pursuant  to or in  connection  with  this  Agreement  or  the  issuance  of the
Securities.

     4.8. Financial Information; SEC Documents.

     (a) The Company has furnished to the Purchasers the consolidated  financial
statements of the Company and its Subsidiaries,  including  consolidated balance
sheets  as of  December  31,  1995  and  1996  and  consolidated  statements  of
operations,  changes in cash flows and stockholders' equity,  covering the three
years ended  December 31, 1996, all of which  statements  have been certified by
Grant Thornton LLP,  certified public  accountants,  and all of which statements
are included or incorporated by reference in the Company's Annual Report on Form
10-K for the year ended December 31, 1996 filed with the Securities and Exchange
Commission  (the  "Commission")  under the  Securities  Exchange Act of 1934, as
amended (the  "Exchange  Act").  Such  financial  statements  fairly present the
condition of the Company and its  Subsidiaries  as of the dates  thereof and the
results of the operations of the Company and its Subsidiaries for such periods.

     (b)  The  Company  has  also  furnished  to the  Purchasers  the  unaudited
consolidated  balance sheet of the Company and its  subsidiaries as of September
30, 1997,  and the related  unaudited  consolidated  statements  of  operations,
consolidated   statements   of  cash  flow  and   consolidated   statements   of
stockholders'  equity for the three months and nine months ended  September  30,
1996 and September 30, 1997, set forth in the Company's Quarterly Report on Form
10-Q for the  fiscal  quarter  ended  September  30,  1997,  as  filed  with the
Commission.  Such  financial  statements  fairly  present,  in  conformity  with
generally accepted accounting  principles ("GAAP") applied on a basis consistent
with the financial  statements referred to in paragraph (a) of this Section, the
consolidated financial position of the Company and its


                                       6



Subsidiaries  as of such date and their  consolidated  results of operations for
such periods (subject to normal year-end adjustments). Since September 30, 1997,
the  Company  has not had net  losses (as  calculated  in  conformity  with GAAP
applied on a basis  consistent  with the  financial  statements  referred  to in
paragraph (a) of this Section) of more than $5,000,000.

     (c) None of the documents  filed by the Company with the  Commission  since
December  31, 1995 contain any untrue  statement  of a material  fact or omit to
state a material  fact  required to be stated  therein or  necessary in order to
make the  statements  contained  therein not false or misleading in light of the
circumstances  in which  they were made.  There is no fact known to the  Company
which the Company has not disclosed to the Purchasers prior to or as of the date
of this Agreement which  materially and adversely  affects,  or in the future is
likely to materially and adversely affect, the business,  properties,  condition
(financial  or  otherwise)  or  business   prospects  of  the  Company  and  its
Subsidiaries, taken as a whole.

     4.9. Offering. Subject in part to the truth and accuracy of the Purchasers'
representations  and the  compliance  by each  Purchaser  with its covenants set
forth in this Agreement and any subscription agreement executed and delivered by
the Purchasers,  the offer,  sale and issuance of the Securities as contemplated
by this  Agreement  are not  subject  to the  registration  requirements  of the
Securities Act of 1933, as amended (the "Securities  Act"), and the Company,  or
anyone acting on its behalf, will not take any action hereafter that would cause
such registration requirements to be applicable.

     4.10. Permits; Governmental and Other Approvals.

     (a) Other than as set forth in Section 4.10 of the  Schedule of  Exceptions
or the Selected Reports, each of the Company and its Subsidiaries possesses such
franchises,  licenses,  permits and other  authority  as are  necessary  for the
conduct of its  business as now being  conducted  and  proposed to be  conducted
(except where the failure to possess such franchises, licenses, permits or other
authority would not materially and adversely affect the business,  properties or
condition  (financial or otherwise) of the Company and its Subsidiaries taken as
a whole) and the Company and its  Subsidiaries  are not in default  under any of
such franchises,  licenses,  permits or other authority. Other than as set forth
in Section  4.10 of the  Schedule of  Exceptions  or the  Selected  Reports,  no
approval, consent, authorization or other order of, and no designation,  filing,
registration, qualification or recording with, any governmental authority or any
other  person or entity is  required  in  connection  with the  Company's  valid
execution, delivery and performance of this Agreement or the offer, issuance and
sale of the Securities by the Company to the Purchasers or the  consummation  of
any other transaction contemplated on the part of the Company hereby.

     (b) Without limiting the generality of the  representations  and warranties
made in Section 4.10(a), the Company represents and warrants that (i) it and its
Subsidiaries  are in  compliance in all material  respects  with all  applicable
provisions of the Federal Food, Drug, and Cosmetic Act (the "FDC Act"), (ii) its
products and those of its Subsidiaries are not adulterated or misbranded and are
in lawful distribution, and (iii) it and its Subsidiaries are in compliance with
the following specific requirements: the Company and its Subsidiaries have


                                       7



registered  all facilities  with the United States Food and Drug  Administration
(the "FDA"); the Company and its Subsidiaries have listed all drug products with
the FDA;  each drug  product  marketed by the Company or any  Subsidiary  is the
subject of an application approved by the FDA; all marketed drug products comply
with any  conditions of approval and the terms of the  application  submitted to
the FDA; all drug products are  manufactured  in compliance  with the FDA's good
manufacturing  practice  regulations;  all  products are labeled and promoted in
accordance with the terms of the marketing application and the provisions of the
FDC Act;  all adverse  events that were  required to be reported to the FDA have
been  reported  to the  FDA in a  timely  manner;  each of the  Company  and its
Subsidiaries  is in  compliance  in all material  respects with the terms of the
consent  agreement  entered into by the Company with the United States  Attorney
for the Eastern  District of New York on behalf of the FDA on June 29, 1993;  to
the Company's knowledge,  neither the Company nor any Subsidiary is employing or
utilizing the services of any  individual  who has been  debarred  under the FDC
Act; all stability studies required to be performed for products  distributed by
the Company or a Subsidiary  have been  completed  or are ongoing in  accordance
with the applicable FDA requirements;  any products exported by the Company or a
Subsidiary  have been exported in  compliance  with the FDC Act; and each of the
Company and its Subsidiaries is in compliance in all material  respects with the
provisions of the Prescription Drug Marketing Act, to the extent applicable.

     (c) Without limiting the generability of the representations and warranties
made in Section  4.10(a),  the Company also  represents and warrants that it and
its Subsidiaries are in compliance in all material  respects with all applicable
provisions of the Controlled Substances Act (the "CSA") and that the Company and
its Subsidiaries are in compliance with the following specific requirements: the
Company  and  its   Subsidiaries   are  registered  with  the  Drug  Enforcement
Administration  (the "DEA") at each facility  where  controlled  substances  are
exported,  imported,  manufactured or distributed; all controlled substances are
stored and  handled  pursuant  to DEA  security  requirements;  all  records and
inventories of receipt and distributions of controlled substances are maintained
in the manner and form as required by DEA regulations;  all reports,  including,
but  not  limited  to,  ARCOS,  manufacturing  quotas,  production  quotas,  and
disposals,  have been submitted to DEA in a timely manner;  all adverse  events,
including  thefts or  significant  losses of  controlled  substances,  have been
reported to DEA in a timely  manner;  to the  Company's  knowledge,  neither the
Company  nor  any  Subsidiary  is  employing  any  individual,  with  access  to
controlled  substances,  who has previously been convicted of a felony involving
controlled substances;  and any imports or exports of controlled substances have
been conducted in compliance with the CSA and DEA regulations.

     4.11. Sales Representatives, Customers and Key Employees. Other than as set
forth in Section 4.11 of the Schedule of Exceptions or the Selected Reports,  to
the knowledge of the Company, no independent sales representatives, customers or
key employees or group of key employees of the Company or its  Subsidiaries  has
any intention to terminate his, her or its relationship with the Company or such
Subsidiary on or after the Closing or in the case of employees, leave, as of the
Closing,  the employ of the Company on and after the Closing.  Other than as set
forth in Section 4.11 of the Schedule of Exceptions  or the Selected  Reports or
as contemplated  by this  Agreement,  all personnel are employed on an "at will"
basis and may be terminated upon notice of not more than 30 days.


                                       8



     4.12. Copyrights,  Trademarks and Patents. (a) Section 4.12 of the Schedule
of Exceptions  sets forth a list of all of the  Company's  and any  Subsidiary's
patents, patent applications,  trademarks,  copyrights,  trademark registrations
and applications therefor,  patent, trademark or trade name licenses,  contracts
with employees or others relating in whole or in part  todisclosure,  assignment
or patenting of any inventions, discoveries,  improvements,  processes, formulae
or  other  know-how,  and all  patent,  trademark  or trade  names or  copyright
licenses which are in force (referred to collectively as "Intellectual  Property
Rights").  The  Intellectual  Property  Rights are, to the best of the Company's
knowledge and belief, fully valid and are in full force and effect.

     (b) The  Company or a  Subsidiary  owns  outright  all of the  Intellectual
Property  Rights listed on Section 4.12 of the Schedule of  Exceptions  attached
hereto  free and clear of all  liens and  encumbrances  and pays no  royalty  to
anyone under or with respect to any of them.

     (c) Neither the Company nor any Subsidiary  has licensed  anyone to use any
of such Intellectual  Property Rights and has no knowledge of the infringing use
by the Company or any Subsidiary of any intellectual property rights.

     (d) The Company has no knowledge, nor has it received any notice (i) of any
conflict  with the asserted  rights of others with  respect to any  Intellectual
Property  Rights used in, or useful to, the operation of the business  conducted
by the Company and its  Subsidiaries  or with respect to any license under which
the  Company  or a  Subsidiary  is  licensor  or  licensee;  or  (ii)  that  the
Intellectual Property Rights infringe upon the rights of any third party.

     4.13.  Inventory.  All  inventory of the Company  consists of a quality and
quantity  usable and  salable in the  ordinary  course of  business,  except for
obsolete items and items of  below-standard  quality,  all of which have been or
will be written off or written  down to net  realizable  value on the  unaudited
consolidated  balance sheet of the Company and its  Subsidiaries as of September
30,  1997.  The  quantities  of each type of inventory  (whether raw  materials,
work-in-process,  or finished  goods) are not excessive,  but are reasonable and
warranted in the present circumstances of the Company.

     4.14.  Registration Rights.  Except as provided for in this Agreement or as
set forth in Section  4.14 of the  Schedule  of  Exceptions  or in the  Selected
Reports,  neither the  Company nor any  Subsidiary  is under any  obligation  to
register any of its currently  outstanding  securities or any of its  securities
which may hereafter be issued.

     4.15.  No  Discrimination.  Neither the Company nor any  Subsidiary  in any
manner or form discriminates,  fosters  discrimination or permits discrimination
against any person  belonging to any minority  race or believing in any minority
creed or religion.



                                       9



     4.16. Environmental Matters.

     (a)  Each  of  the  Company  and  its   Subsidiaries   has   obtained   all
environmental, health and safety permits necessary or required for the operation
of its business (except where the failure to possess such franchises,  licenses,
permits  or other  authority  would not  materially  and  adversely  affect  the
business,  properties  or condition  (financial or otherwise) of the Company and
its Subsidiaries  taken as a whole),  and all such permits are in full force and
effect and each of the  Company and its  Subsidiaries  is in  compliance  in all
material respects with all terms and conditions of such permits.

     (b) Except as set forth in Section  4.16 of the Schedule of  Exceptions  or
the Selected Reports,  there is no proceeding  pending or, to the best knowledge
of  the  Company,  threatened,  which  may  result  in the  denial,  rescission,
termination,  modification or suspension of any environmental or heath or safety
permits  necessary  for the  operation  of the  business  of the Company and its
Subsidiaries.

     (c) Except as set forth in Section  4.16 of the Schedule of  Exceptions  or
the Selected  Reports,  during the occupancy by the Company or any Subsidiary of
any real  property  leased by the  Company or such  Subsidiary,  and to the best
knowledge  of the Company,  no other  person or entity,  has caused or permitted
materials to be generated,  released, stored, treated, recycled, disposed of on,
under or at such parcels, which materials, if known to be present, would require
clean up, removal or other remedial or responsive action under any environmental
laws. To the best  knowledge of the Company,  there are no  underground  storage
tanks  and no  polychlorinated  biphenyls  ("PCB's"),  PCB  contaminated  oil or
asbestos on any property leased by the Company or any Subsidiary.

     (d) Except as set forth in Section  4.16 of the Schedule of  Exceptions  or
the Selected  Reports,  neither the Company nor any Subsidiary is subject to any
judgment,  decree,  order or citation related to or arising out of environmental
laws,  or has received  notice that it has been named or listed as a potentially
responsible  party by any  person or  governmental  body or agency in any matter
arising under environmental laws.

     (e) To the best of knowledge  of the  Company,  each of the Company and its
Subsidiaries has disposed of all waste in full compliance with all environmental
laws.

     4.17.  Taxes.  Except  as set  forth in  Section  4.17 of the  Schedule  of
Exceptions  or the Selected  Reports,  the Company and each of its  Subsidiaries
have filed all  necessary  income,  franchise  and other  material  tax returns,
domestic  and foreign and have paid all taxes shown as due  thereunder,  and the
Company has no knowledge of any tax deficiency  which might be assessed  against
the  Company or any of the  Subsidiaries  which,  if so  assessed,  would have a
material  adverse  effect  on  the  business,  properties,  assets,  net  worth,
condition  (financial or other), or results of operations of the Company and its
Subsidiaries taken as a whole.



                                       10



     4.18. Employee Benefit Plans and Similar Arrangements.

     (a) Section 4.18 of the Schedule of Exceptions  lists all employee  benefit
plans and  collective  bargaining,  labor  and  employment  agreements  or other
similar arrangements in effect to which the Company,  its Subsidiaries,  and any
of its ERISA Affiliates are a party or by which the Company,  its  Subsidiaries,
and any of its ERISA  Affiliates  are bound,  legally or  otherwise,  including,
without limitation,  any  profit-sharing,  deferred  compensation,  bonus, stock
option, stock purchase, pension, retainer,  consulting,  retirement,  severance,
welfare or incentive  plan,  agreement or  arrangement;  any plan,  agreement or
arrangement providing for fringe benefits or perquisites to employees, officers,
directors  or  agents,  including  but  not  limited  to  benefits  relating  to
employer-supplied  automobiles,  clubs, medical, dental,  hospitalization,  life
insurance and other types of insurance,  retiree medical, retiree life insurance
and any other  type of  benefits  for  retired  and  terminated  employees;  any
employment  agreement;  or any other "employee benefit plan" (within the meaning
of Section  3(3) of the Employee  Retirement  Income  Security  Act of 1974,  as
amended  through  the date of this  Agreement  ("ERISA"))  (herein  referred  to
individually  as "Plan" and  collectively  as  "Plans").  For  purposes  of this
Agreement,  "ERISA  Affiliate" means (i) any corporation which at any time on or
before  the  Closing  Date is or was a member  of the same  controlled  group of
corporations  (within the meaning of Section 414(b) of the Internal Revenue Code
of 1986, as amended (the "Code")) as the Company, its Subsidiaries, or any ERISA
Affiliate; (ii) any partnership, trade or business (whether or not incorporated)
which at any time on or before the Closing Date is or was under  common  control
(within  meaning  of  Section  414(c)  of  the  Code)  with  the  Company,   its
Subsidiaries,  or any ERISA Affiliate; and (iii) any entity which at any time on
or before the  Closing  Date is or was a member of the same  affiliated  service
group  (within the meaning of Section  414(m) of the Code) as the  Company,  its
Subsidiaries or any ERISA Affiliate,  or any corporation described in clause (i)
or any  partnership,  trade  or  business  described  in  clause  (ii)  of  this
paragraph.

     (b) True and complete copies of the following documents with respect to any
Plan of the Company, its Subsidiaries,  and each ERISA Affiliate, as applicable,
have been  delivered  to the  Purchaser:  (i) the most recent Plan  document and
trust agreement  (including any amendments thereto and prior plan documents,  if
amended  with the last two  years),  (ii)  the last two Form  5500  filings  and
schedules  thereto,  (iii) the most  recent  Internal  Revenue  Service  ("IRS")
determination  letter,  (iv)  all  summary  plan  descriptions,  (v)  a  written
description of each material  non-written Plan, (vi) each written  communication
to employees  intended to describe a Plan or any benefit  provided by such Plan,
(vii) the most recent actuarial report, and (viii) all  correspondence  with the
IRS,  the  Department  of Labor and the  Pension  Benefit  Guaranty  Corporation
concerning any  controversy.  Each report  described in clause (vii)  accurately
reflects the funding  status of the Plan to which it relates and  subsequent  to
the date of such report there has been no adverse  change in the funding  status
or financial condition of such Plan.

     (c) Each Plan is and has been  maintained  in  compliance  in all  material
respects with applicable law,  including but not limited to ERISA,  and the Code
and with any applicable  collective  bargaining  agreements or other contractual
obligations.



                                       11



     (d) Except as shown on Section  4.18 of the  Schedule of  Exceptions,  with
respect to any Plan that is subject  to  Section  412 of the Code ("412  Plan"),
there has been no  failure  to make any  contribution  or pay any  amount due as
required  by Section  412 of the Code,  Section 302 of ERISA or the terms of any
such Plan,  and no funding  waiver has been  requested or received from the IRS.
The assets of the Company,  its  Subsidiaries,  or and ERISA  Affiliates are not
now,  nor will they after the  passage of time be,  subject to any lien  imposed
under Code Section412(n) by reason of a failure of the Company,  any Subsidiary,
or any ERISA Affiliate to make timely  installments  or other payments  required
under Code Section 412.

     (e) Except as shown on Section 4.18 of the Schedule of Exceptions or in the
Selected Reports, no Plan subject to Title IV of ERISA has any "Unfunded Pension
Liability." For purpose of this Agreement,  Unfunded Pension Liability means, as
of any determination date, the amount, if any, by which the present value of all
benefit liabilities (as that term is defined in Section 4001(a)(16) of ERISA) of
a plan subject to Title IV of ERISA  exceeds the fair market value of all assets
of such plan, all determined using the actuarial  assumptions that would be used
by the PBGC in the  event  of a  termination  of the plan on such  determination
date.

     (f) Except as shown on Section 4.18 of the Schedule of  Exceptions,  to the
best knowledge of the Company, its Subsidiaries, and ERISA Affiliates, there are
no pending or threatened claims, actions or lawsuits,  other than routine claims
for benefits in the ordinary course, asserted or instituted against (i) any Plan
or its assets,  (ii) any ERISA  Affiliate with respect to any 412 Plan, or (iii)
any fiduciary with respect to any Plan for which the Company,  its Subsidiaries,
or  any  ERISA  Affiliate  may  be  directly  or  indirectly   liable,   through
indemnification obligations or otherwise.

     (g)  Neither the  Company,  any  Subsidiary,  nor any ERISA  Affiliate  has
incurred and or reasonably  expects to incur (i) any  withdrawal  liabilities as
defined  in  Section  4201 of ERISA  ("Withdrawal  Liability")  and no event has
occurred  which,  with the giving of notice under  Section 4219 of ERISA,  would
result in Withdrawal Liabilities,  or any liability under Section 4063, 4064, or
4243, or (ii) any outstanding  liability under Title IV of ERISA with respect to
any 412 Plan.

     (h) Except as shown on Section 4.18 of the Schedule of  Exceptions,  within
the last  five  years,  neither  the  Company,  any  Subsidiary,  nor any  ERISA
Affiliate  has  transferred  anyassets or  liabilities  of a 412 Plan subject to
Title IV of ERISA which had, at the date of such transfer,  an Unfunded  Pension
Liability or has engaged in a  transaction  which may  reasonably  be subject to
Section 4212(c) or Section 4069 of ERISA.

     (i)  Neither the  Company,  any  Subsidiary,  nor any ERISA  Affiliate  has
engaged,  directly or indirectly,  in a non-exempt  prohibited  transaction  (as
defined in Section 4975 of the Code or Section 406 of ERISA) in connection  with
any Plan.

     (j) Except as shown on Section 4.18 of the Schedule of Exceptions,  neither
the Company, any Subsidiary,  nor any ERISA Affiliate has any unfunded liability
with respect to any non-tax qualified deferred compensation plan.


                                       12



     (k) Neither the Purchaser nor its affiliates will have (i) an obligation to
make  contribution(s)  to any multiemployer plan (as defined in Section 3(37) of
ERISA),  or (ii) any Withdrawal  Liability  (whether imposed and not yet paid or
calculated  assuming  a complete  or  partial  withdrawal  of the  Company,  any
Subsidiary,  or any ERISA  Affiliate as of such date not yet  imposed)  which it
would  not  have had it not  entered  into the  transactions  described  in this
Agreement.

     (l) Except as shown on Section 4.18 of the Schedule of  Exceptions,  during
the last two  years  there  have been no  amendments  to any  Plan,  no  written
interpretation  or  announcement  (whether or not written) by the  Company,  any
Subsidiary, or any ERISA Affiliate relating to any Plan, there have been and are
no negotiations,  demands, or proposals which are pending that concern any Plan,
nor has any Plan  been  established,  which  resulted  in or could  result  in a
material  increase in (i) the accrued or promised  benefits of any  employees of
the Company,  or any  Subsidiary,  or any ERISA  Affiliate and (ii) any material
increase in the level of expense incurred in respect thereof.

     (m) There  has been no  "Reportable  Event"  with  respect  to any 412 Plan
subject to Title IV of ERISA within the last five years.

     (n) Neither the Company, any Subsidiary,  nor any ERISA Affiliate sponsors,
maintains or has obligations,  direct,  contingent or otherwise, with respect to
any Plan  that is  subject  to the laws of any  country  other  than the  United
States.

     (o) No ERISA Affiliate  maintains an employee stock ownership plan or other
plan holding securities of the Company, any Subsidiary, or any ERISA Affiliate.

     (p)  Each  Plan  that  provides  welfare  benefits  has  been  operated  in
compliance with all requirements of Sections 601 through 608 of ERISA and either
(i) Section  162(i)(2) and (k) of the Code and regulations  thereunder (prior to
1989) or (ii) Section 4980B of the Code and regulations  thereunder  after 1988,
relating to the  continuation of coverage under certain  circumstances  in which
coverage would otherwise  cease.  Neither the Company,  any Subsidiary,  nor any
ERISA Affiliate has contributed to a nonconforming group health plan (as defined
under Code  Section  5000(c)  and no ERISA  Affiliate  has  incurred a tax under
Section  5000(a) of the Code which could become a liability of the Company,  any
Subsidiary,  or any  ERISA  Affiliate.  Except as shown on  Section  4.18 of the
Schedule of Exceptions or in the Selected Reports,  the Company, any Subsidiary,
or any ERISA  Affiliate does not and has not  maintained,  sponsored or provided
post-retirement medical benefits,  post-retirement death benefits or other post-
retirement  welfare benefits to its current employees or former employees except
as  required  by  Section  4980B  of the Code  and at the  sole  expense  of the
participant or the beneficiary of the  participant.  The Company has complied in
all respects  with all  requirements  of the Health  Insurance  Portability  and
Accountability  Act of 1996 with  respect  to each Plan  that  provides  welfare
benefits.

     (q) Except as shown on Section  4.18 of the  Schedule  of  Exceptions,  the
Company, its Subsidiaries, and its ERISA Affiliates has funded or will fund each
Plan in


                                       13



accordance  with the terms of such Plan through the Closing Date,  including the
payment of applicable  premiums on any insurance  contract  funding a Plan,  for
coverage provided through the Closing Date.

     (r) No Plan  has  been  amended  since  the  date of its  most  recent  IRS
determination  letter which would  materially  increase its cost and no Plan has
been  amended  in a  manner  that  would  require  security  to be  provided  in
accordance with Section 401(a)(29) of the Code.

     (s) Each Plan that is intended  to be a tax  qualified  Plan under  Section
401(a) of the Code  ("Tax  Qualified  Plan") has been  determined  by the IRS to
qualify under Section 401 of the Code,  and the trusts created  thereunder  have
been determined to be exempt from tax under the provisions of Section 501 of the
Code, and to the best knowledge of the Company, its Subsidiaries,  and its ERISA
Affiliates  nothing has occurred,  including the adoption of or failure to adopt
any Plan amendment, which would adversely affect its qualification or tax-exempt
status.

     (t) Except as disclosed on Section 4.18 of the Schedule of  Exceptions,  no
employee  or  former  employee  of the  Company,  any  Subsidiary,  or any ERISA
Affiliate will become entitled to any bonus, retirement, severance, job security
or  similar  benefit,   or  any  enhancement  to  any  such  benefit  (including
acceleration  of vesting or exercise of an  incentive  award) as a result of the
transactions contemplated under this Agreement and no agreement (whether oral or
written) of the employer, with respect to a current or former employee, provides
for the payment of any amounts  which  would fail to be  deductible  for federal
income tax purposes by reason of Section 280G of the Code.

     4.19.  Disclosure.  The information  heretofore provided and to be provided
pursuant to this  Agreement,  including  the  Schedules  of  Exceptions  and the
Exhibits  hereto,  and  each  of the  agreements,  documents,  certificates  and
writings previously delivered to the Purchasers or their representatives, do not
and will not contain any untrue statement of a material fact and do not and will
not omit to state a material  fact  required  to be stated  herein or therein or
necessary  in order to make the  statements  and writings  contained  herein and
therein not false or  misleading in the light of the  circumstances  under which
they  were  made.  To the  knowledge  of the  Company,  there  is no fact  which
materially adversely affects the business,  prospects or condition (financial or
otherwise) of the Company which has not been set forth herein.

                                    ARTICLE V

                REPRESENTATIONS AND WARRANTIES OF THE PURCHASERS

     Each of the  Purchasers  severally  represents  and warrants to the Company
that it is acquiring the  Securities  for  investment for its own account and is
not  acquiring  any of the  Securities  with  the  view  to,  or for  resale  in
connection with, any distribution  thereof. Each Purchaser understands that none
of the Securities have been registered under the Securities Act.


                                       14



If the Purchaser  should in the future decide to dispose of any Securities it is
understood  that the Purchaser may do so only in compliance  with the Securities
Act.

                                   ARTICLE VI

                     CONDITIONS TO CLOSING OF THE PURCHASERS

     The  obligation of each Purchaser to purchase the Securities at the Closing
is subject to the  fulfillment to such  Purchaser's  satisfaction on or prior to
the Closing Date of each of the following conditions, any of which may be waived
by such Purchaser:

     6.1.  Representations  and  Warranties  Correct.  The  representations  and
warranties  in  Article  4  hereof  shall be true and  correct  in all  material
respects  when made,  and shall be true and correct in all material  respects on
the Closing  Date with the same force and effect as if they had been made on and
as of the Closing Date.

     6.2.  Performance.  All covenants,  agreements and conditions  contained in
this  Agreement to be  performed or complied  with by the Company on or prior to
the Closing Date shall have been  performed  or complied  with by the Company in
all material respects.

     6.3.  Compliance  Certificate.  The  Company  shall have  delivered  to the
Purchaser a  certificate  of the  Company's  President,  dated the Closing Date,
certifying to the  fulfillment of the  conditions  specified in Sections 6.1 and
6.2 of this  Agreement  and other  matters  as the  Purchaser  shall  reasonably
request.

     6.4. No Impediments. Neither the Company nor any Purchaser shall be subject
to any  order,  decree  or  injunction  of a court or  administrative  agency of
competent jurisdiction which would impose any material limitation on the ability
of such Purchaser to exercise full rights of ownership of the Securities.

     6.5.  Waivers and Amendments of Rights of First Refusal.  The Company shall
have  obtained  from each person  other than a Purchaser  who has any  currently
effective  right of first  refusal  with  respect to the  Securities,  a written
waiver of such right in form and substance  satisfactory to the  Purchasers.  In
addition,  (a) each person (other than a holder of the Company's 10% Convertible
Subordinated  Debentures due August 6, 2001 (the "Prior  Debentures")) who holds
any other right of first refusal or  preemptive  right,  shall have  irrevocably
waived and released such rights and (b) each holder of a Prior  Debenture  ("Old
Holder")  shall have agreed to amend such Old Holder's right so that such rights
shall be governed by Section 16.1(b) of this Agreement.

     6.6. Other Agreements and Documents.  The Company shall have issued to such
Purchaser all of the Securities  (including the Debenture,  the $2.375  Warrants
and the $1.50 Warrants) and the Company or each of its Subsidiaries  (other than
any Subsidiary which has no material assets and is inactive) shall have executed
and delivered the following agreements and documents:


                                       15



          (a) The Company  Security  Agreement in the form of Exhibit F attached
     hereto;

          (b) The Guaranties in the form of Exhibit G attached hereto;

          (c)  The  Guarantors  Security  Agreement  in the  form of  Exhibit  H
     attached hereto;

          (d)  Financing  Statements  on Form UCC-1 with respect to all personal
     property and assets of the Company and each Guarantor;

          (e) A  certified  copy  of the  Certificate  of  Incorporation  of the
     Company and each Guarantor and all amendments thereto;

          (f) A copy of the By-Laws of the Company and each Guarantor as amended
     to date, certified as being true by a principal officer of the Company;

          (g) A  Certificate  of Good  Standing and Tax Status from the state of
     incorporation  of the  Company and each  Guarantor  and from every state in
     which any of them is qualified to do business; and

          (h) The Mortgages.

     6.7.  Consents.  The Company shall have obtained all necessary  consents or
waivers,  if any, from all parties to any other material agreements to which the
Company is a party or by which it is bound  immediately  prior to the Closing in
order  that the  transactions  contemplated  hereby may be  consummated  and the
business  of the  Company  may be  conducted  by the  Company  after the Closing
without adversely affecting the Company.

     6.8.  Legal  Investment.  At the time of the  Closing,  the purchase of the
Securities  to be  purchased  by  each  Purchaser  hereunder  shall  be  legally
permitted by all laws and  regulations  to which the  Purchasers and the Company
are subject.

     6.9.  Due  Diligence  Investigation.  No fact shall  have been  discovered,
whether or not reflected in the Schedule of  Exceptions,  which in a Purchaser's
determination  would make the consummation of the  transactions  contemplated by
this Agreement not in such Purchaser's best interests.

     6.10. Proceedings and Other Documents.  All corporate and other proceedings
in connection  with the  transactions  contemplated by this Agreement shall have
been taken and the Purchasers shall have received such other documents,  in form
and substance reasonably satisfactory to the Purchasers and their counsel, as to
such  other  matters  incident  to the  transaction  contemplated  hereby as the
Purchasers may reasonably request.



                                       16



     6.11. Opinion of Counsel. The Purchasers shall have received the opinion of
St.  John & Wayne,  L.L.C.,  counsel to the  Company,  dated the  Closing  Date,
substantially in the form of Exhibit I attached hereto.

     6.12.  Election of Directors.  Two designees of the  Purchasers  shall have
been elected as directors of the Company and shall have taken office.

     6.13. Employment  Agreements.  Michael Reicher and Peter Clemens shall have
entered into Employment Agreements with the Company substantially in the form of
Exhibits J and K, respectively.

     6.14. Proxies. The persons set forth on Exhibit L-1 shall have delivered to
a person designated by Galen an irrevocable proxy in the form of Exhibit L-2.

     6.15.  Deferred  Conditions.  To the  extent  set forth on  Exhibit  M, the
Purchasers  waive  compliance  by the Company on or prior to the Closing Date of
those, but only those, conditions of the Purchase Agreement set forth on Exhibit
M (the "Deferred Conditions");  provided,  however, that if the Company does not
comply with all Deferred  Conditions  prior to April 10, 1998,  then an Event of
Default  (as  hereinafter  defined)  shall be deemed to occur as of 5:00 p.m. on
April 10, 1998 and the  occurrence of such Event of Default shall not be subject
to the giving of any notice to the Company or an opportunity to cure.

                                   ARTICLE VII

                      CONDITIONS TO CLOSING OF THE COMPANY

     The Company's  obligation to sell the  Securities at the Closing is subject
to the  fulfillment to its  satisfaction on or prior to the Closing Date of each
of the following conditions:

     7.1.  Representations.  The representations made by each Purchaser pursuant
to Article 5 hereof  shall be true and  correct  when made and shall be true and
correct on the Closing Date.

     7.2.  Legal  Investment.  At the time of the  Closing,  the purchase of the
Securities  shall be legally  permitted by all laws and regulations to which the
Purchasers and the Company are subject.

     7.3.  Payment of Purchase Price. The Company shall have received payment in
full of the purchase price for the Securities.


                                       17



                                  ARTICLE VIII

                          PREPAYMENT; CHANGE OF CONTROL
                        PURCHASE OFFER; CONVERSION RIGHTS

     8.1. No Optional Prepayments.  The Company may not at any time, without the
prior written consent of the holders of all outstanding  Debentures,  prepay any
Debenture, in whole or in part.

     8.2. Change of Control.

     (a) Upon the  occurrence of a Change of Control (as  hereinafter  defined),
the  Company  shall make an offer to all  holders of  Debentures  to purchase (a
"Change of Control  Offer") all outstanding  Debentures and will purchase,  on a
day not more than thirty (30) days after the occurrence of the Change of Control
(such purchase date being the "Change of Control Purchase Date"), all Debentures
properly  tendered  pursuant  to such  offer to  purchase  for a cash price (the
"Change of Control  Purchase  Price") equal to the applicable  percentage of the
outstanding  principal  amount of the  Debentures  in the table set forth below,
plus  accrued and unpaid  interest,  if any,  to the Change of Control  Purchase
Date. The applicable percentages are as follows:

                                            Purchase  Price as a Percentage  of
If Change of Control Occurs During the      Outstanding  Principal of Debenture
Twelve  Month  Period  Commencing  on       to be Purchased
- --------------------------------------      ------------------------------------

Closing Date                                            150%

First Anniversary of Closing Date                       140%

Second Anniversary of Closing Date                      130%

Third Anniversary of Closing Date                       120%

Fourth Anniversary of Closing Date                      110%


     (b) In order to effect a Change of Control Offer,  the Company shall within
ten (10) days after the  occurrence of the Change of Control mail to each holder
of a  Debenture  a copy of the  Change of Control  Offer.  The Change of Control
Offer  shall  remain  open from the time of mailing  for at least  fifteen  (15)
calendar days. The notice, which shall govern the terms of the Change of Control
Offer, shall include such disclosures as are required by law and shall state:

          (i) the date of such  Change  of  Control  and,  briefly,  the  events
     causing such Change of Control;

          (ii) that the Change of Control  Offer is being made  pursuant to this
     Section 8.2 and that all Debentures tendered in the Change of Control Offer
     will be accepted for payment;



                                       18



          (iii) the Change of Control  Purchase  Price for each  Debenture,  the
     Change of Control  Purchase  Date,  the date on which the Change of Control
     Offer  expires,  that ifthe holder  desires to accept the Change of Control
     Offer, the Debenture held by such holder must be surrendered to the Company
     or any designated  paying agent prior to 5:00 p.m. on the Change of Control
     Purchase Date, and the name and address of any such paying agent, if any;

          (iv) that any  Debenture  not tendered  for payment  will  continue to
     accrue interest in accordance with the terms thereof;

          (v) that,  unless the  Company  shall  default  in the  payment of the
     Change of Control  Purchase  Price,  any  Debenture  accepted  for  payment
     pursuant  to the Change of Control  Offer  shall  cease to accrue  interest
     after the Change of Control Purchase Date;

          (vi) that holders will be entitled to withdraw  their  election if the
     Company  or paying  agent  receives,  not later  than 5:00 p.m.  on the day
     preceding  the  Change  of  Control  Purchase  Date a  telex  or  facsimile
     transmission  (confirmed by overnight  delivery of the original thereof) or
     letter  setting  forth  the name of the  holder,  the  principal  amount of
     Debentures  the holder  delivered for purchase,  and a statement  that such
     holder is withdrawing its election to have such Debentures purchased;

          (vii) that holders whose Debentures are purchased only in part will be
     issued  Debentures equal in principal amount to the unpurchased  portion of
     the Debentures surrendered; and

          (viii) any other  instructions  that  holders  must follow in order to
     tender their  Debentures and the  procedures for  withdrawing a election to
     accept a Change on Control Offer.

     (c) On the Change of Control  Purchase  Date,  the Company shall (i) accept
for payment  Debentures or portions thereof  tendered  pursuant to the Change of
Control  Offer and (ii) deposit with the paying agent,  if any,  money in United
States dollars, in immediately available funds,  sufficient to pay the Change of
Control  Purchase  Price of all  Debentures or portions  thereof so tendered and
accepted.  The Company shall, or cause any paying agent to, promptly disburse or
deliver to the holders of Debentures  so accepted  payment in an amount equal to
such Change of Control Purchase Price, and mail or deliver to such holders a new
Debenture equal in principal amount to any unpurchased portion of each Debenture
surrendered.

     (d)  The  Company  shall  comply,  to  the  extent  applicable,   with  the
requirements of Section 14(e) of the Exchange Act, and any other securities laws
or regulations,  in connection  with the repurchase of Debentures  pursuant to a
Change of Control Offer. To the extent that the provision of any securities laws
or  regulations  conflict  with the  provisions of this Section 8.2, the Company
shall comply with the applicable  securities  laws and regulations and shall not
be deemed to have  breached  its  obligations  under this  Section 8.2 by virtue
thereof.

     (e) For purposes of this Agreement,  the term "Change of Control" means the
occurrence of any of the following:  (i) the consummation of any transaction the
result of which


                                       19



is that any  person or group (as such term is used in  Section  13(d)(3)  of the
Exchange Act), other than Galen or any affiliate  thereof or any group comprised
of any of the foregoing,  owns, directly or indirectly, 51% of the Common Equity
(as hereinafter defined) of the Company,  (ii) the Company consolidates with, or
merges  with  or  into,   another  person  (other  than  a  direct  or  indirect
wholly-owned  Subsidiary)  or  sells,  assigns,  conveys,  transfers,  leases or
otherwise  disposes of all or  substantially  all of the Company's assets or the
assets of the Company and its  Subsidiaries  taken as a whole to any person,  or
any person  consolidates with, or merges with or into, the Company,  in any such
event  pursuant  to a  transaction  in which the  outstanding  Voting  Stock (as
hereinafter  defined) of the Company,  as the case may be, is converted  into or
changed for cash, securities or other property,  other than any such transaction
where  the  outstanding  Voting  Stock of the  Company,  as the case may be,  is
converted  into or  exchanged  for Voting Stock of the  surviving or  transferee
corporation  and the  beneficial  owners  of the  Voting  Stock  of the  Company
immediately prior to such transaction own, directly or indirectly, not less than
a majority  of the  Voting  Stock of the  surviving  or  transferee  corporation
immediately after such transaction, (iii) the Company, either individually or in
conjunction with one or more Subsidiaries sells,  assigns,  conveys,  transfers,
leases or  otherwise  disposes of, or the  Subsidiaries  sell,  assign,  convey,
transfer,  lease  or  otherwise  dispose  of,  all or  substantially  all of the
properties  and assets of the  Company  and its  Subsidiaries,  taken as a whole
(either  in one  transaction  or a series of  related  transactions),  including
capital  stock of the  Subsidiaries,  to any person (other than the Company or a
wholly owned Subsidiary of the Company),  or (iv) during any two (2) year period
commencing  subsequent  to the date of this  Agreement,  individuals  who at the
beginning  of such  period  constituted  the Board of  Directors  of the Company
(together  with any new directors  whose  election by such Board of Directors or
whose nomination for election by the stockholders of the Company was approved by
a vote of  two-thirds  of the  directors  then still in office)  who were either
directors at the beginning of such period or whose  election or  nomination  for
election  was  previously  so  approved  cease for any  reason to  constitute  a
majority of the Board of Directors  then in office;  provided,  however,  that a
person  shall not be deemed to have ceased  being a director for such purpose if
such person shall have  resigned or died or if the  involuntary  removal of such
person was made at the  direction  of persons  holding a majority  in  principal
amount of the outstanding  Debentures.  For purposes of this Section 8.2(e), (i)
the term "Common  Equity" of the Company  means all capital stock of the Company
that is generally  entitled to vote on the  election of  Directors  and (ii) the
term "Voting Stock" of the Company mean securities of any class of capital stock
of the Company  entitling the holders thereof to vote in the election of members
of the board of directors of the Company.

                                   ARTICLE IX

                              AFFIRMATIVE COVENANTS

     The Company hereby covenants and agrees,  so long as any Securities  remain
outstanding, as follows:

     9.1.  Maintenance of Corporate  Existence,  Properties  and Leases;  Taxes;
Insurance.


                                       20



     (a) The Company shall and shall cause each of its Subsidiaries to, maintain
in full force and effect its corporate existence,  rights and franchises and all
material terms of licenses and other rights to use licenses,  trademarks,  trade
names, service marks, copyrights,  patents or processes owned or possessed by it
and necessary to the conduct of its business.

     (b) The Company shall and shall cause its Subsidiaries to, keep each of its
properties  necessary  to the conduct of its  business in good  repair,  working
order and condition,  reasonable  wear and tear excepted,  and from time to time
make all needful  and proper  repairs,  renewals,  replacements,  additions  and
improvements  thereto; and the Company shall and shall cause its Subsidiaries to
at all times comply with each material  provision of all leases to which it is a
party or under which it occupies property.

     (c) The Company shall and shall cause each of its Subsidiaries to, promptly
pay and discharge,  or cause to be paid and discharged when due and payable, all
lawful taxes,  assessments and  governmental  charges or levies imposed upon the
income,   profits,   assets,  property  or  business  of  the  Company  and  its
Subsidiaries,  and all claims or indebtedness  (including,  without  limitation,
claims or  demands  of  workmen,  materialmen,  vendors,  suppliers,  mechanics,
carriers,  warehousemen and landlords) which, if unpaid might become a lien upon
the assets or property of the Company or Subsidiary; provided, however, that any
such tax,  assessment,  charge or levy need not be paid if the validity  thereof
shall be contested timely and in good faith by appropriate  proceedings,  if the
Company or Subsidiary  shall have set aside on its books adequate  reserves with
respect thereto, and the failure to pay shall not be prejudicial in any material
respect to the  holders  of the  Securities,  and  provided,  further,  that the
Company  or  Subsidiary  will pay or cause to be paid any such tax,  assessment,
charge or levy forthwith upon the  commencement  of proceedings to foreclose any
lien which may have attached as security  therefor.  The Company shall and shall
cause  its  Subsidiaries  to pay or  cause  to be paid  all  other  indebtedness
incident to the operations of the Company or its Subsidiaries.

     (d) The Company shall and shall cause each of its Subsidiaries to, keep its
assets  which are of an insurable  character  insured by  financially  sound and
reputable  insurers against loss or damage by theft,  fire,  explosion and other
risks  customarily  insured  against by companies in the line of business of the
Company or its Subsidiaries, in amounts sufficient to prevent the Company or its
Subsidiaries from becoming a co-insurer of the property insured; and the Company
shall and shall cause its Subsidiaries to maintain,  with financially  sound and
reputable  insurers,  insurance against other hazards and risks and liability to
persons and property to the extent and in the manner  customary for companies in
similar businesses  similarly situated or as may be required by law,  including,
without limitation, general liability, fire and business interruption insurance,
and  product  liability  insurance  as may be  required  pursuant to any license
agreement to which the Company or its  Subsidiaries is a party or by which it is
bound.

     9.2. Basic Financial  Information.  The Company shall furnish the following
reports to each Purchaser (or any transferee of any Securities),  so long as the
Purchaser is a holder of any Securities:

          (a)  within  sixty  (60) days  (for  each of March  and  April  1998),
     forty-five (45) days (for each of the next 12 months thereafter) and thirty
     (30) days (for each month thereafter)


                                       21



     after the end of each of the twelve (12) monthly accounting periods in each
     fiscal year (or when  furnished to the  Company's  Board of  Directors,  if
     earlier), unaudited consolidated statements of income and retained earnings
     and cash flows of the Company and its  Subsidiaries for each monthly period
     and for the period  from the  beginning  of such  fiscal year to the end of
     such monthly  period,  together  with  consolidated  balance  sheets of the
     Company and its Subsidiaries as at the end of each monthly period,  setting
     forth in each case  comparisons to budget (with respect to the provision of
     the financial information to be provided herein commencing January 1999 and
     thereafter)  and to  corresponding  periods in the  preceding  fiscal year,
     which  statements  will be prepared in accordance  with generally  accepted
     accounting principles, consistently applied;

          (b)  within  ninety  (90)  days  after  the end of each  fiscal  year,
     consolidated  statements of income and retained  earnings and cash flows of
     the Company and its  Subsidiaries for the period from the beginning of each
     fiscal year to the end of such fiscal year, and consolidated balance sheets
     as at the  end  of  such  fiscal  year,  setting  forth  in  each  case  in
     comparative form corresponding figures for the preceding fiscal year, which
     statements  will  be  prepared  in  accordance   with  generally   accepted
     accounting  principles,  consistently  applied  (except as  approved by the
     accounting  firm examining  such  statements and disclosed by the Company),
     and will be accompanied by:

               (i) an unqualified report of the Company's  independent certified
          public accounting firm; for purposes of this Section,  a report on the
          consolidated  financial statements of the Company and its Subsidiaries
          as of  December  31,  1997 and for the year then  ended  disclosing  a
          "going concern"  qualification,  but no other qualification,  shall be
          considered  "unqualified,  but a report  covering  any  period  ending
          subsequent to December 31, 1997 disclosing a "going concern" paragraph
          shall not be considered "unqualified";

               (ii)  a  report  from  such  accounting  firm,  addressed  to the
          Purchasers,  stating  that in making  the audit  necessary  to express
          their opinion on such financial statements,  nothing has come to their
          attention  which would lead them to believe that the Company is not in
          compliance with all the financial  covenants contained in, or an event
          of default has occurred  with respect to, any material  agreements  to
          which the  Company  or its  Subsidiaries  is a party or by which it is
          bound,  including,  without  limitation,  this Agreement (an "Event of
          Noncompliance")  or, if such  accountants  have reason to believe that
          any Event of  Noncompliance  has  occurred,  a letter  specifying  the
          nature thereof; and

               (iii) the management letter of such accounting firm;

          (c)  within  forty-five  (45)  days  after  the end of each  quarterly
     accounting period in each fiscal year, a certificate of the Chief Financial
     Officer of the Company  stating that the Company is in compliance  with the
     terms of this  Agreement and any other  material  contract or commitment to
     which the Company or any of its  Subsidiaries is a party or by which any of
     them is  bound,  or if the  Company  or any of its  Subsidiaries  is not in
     compliance,  specifying  the nature and period of  noncompliance,  and what
     actions the Company or such  Subsidiary  has taken and/or  proposes to take
     with  respect  thereto.  Notwithstanding  the  foregoing,  the  certificate
     delivered at the end of each fiscal year of the Company  shall be signed by
     both the Chief Executive Officer


                                       22



     and the Chief  Financial  Officer  of the  Company  and shall be  delivered
     within ninety (90) days after the end of the fiscal year;

          (d) promptly upon receipt  thereof,  any  additional  reports or other
     detailed information  concerning  significant aspects of the operations and
     condition,  financial or  otherwise,  of the Company and its  Subsidiaries,
     given to the Company by its independent accountants;

          (e) at least  thirty  (30) days prior to the end of each  fiscal  year
     (commencing  with  November  30,  1998 for the fiscal  year  commencing  on
     January 1, 1999), a detailed annual  operating budget and business plan for
     the Company and its  Subsidiaries for the succeeding  twelve-month  period.
     Such budgets shall be prepared on a monthly basis,  displaying consolidated
     statements  of  anticipated  income  and  retained  earnings,  consolidated
     statements  of  anticipated  cash flow and projected  consolidated  balance
     sheets,  setting forth in each case the assumptions  (which assumptions and
     projections  shall  represent and be based upon the good faith  judgment in
     respect thereof of the chief  executive  officer of the Company) behind the
     projections contained in such financial statements, and which budgets shall
     have been  approved by the Board of Directors  of the Company  (including a
     majority of the directors  designated by the Purchasers in accordance  with
     Section  9.8(a)  of  this  Agreement)   prior  to  the  beginning  of  each
     twelve-month  period for which such budget  shall have been  prepared  and,
     promptly upon preparation  thereof,  any other budgets that the Company may
     prepare and any revisions of such annual or other budgets;

          (f) within ten (10) days after transmission or receipt thereof, copies
     of all financial statements, proxy statements and reports which the Company
     sends to its  stockholders  or  directors,  and copies of all  registration
     statements and all regular,  special or periodic reports which it or any of
     its officers or directors  files with the  Commission,  the American  Stock
     Exchange (the "AMEX") or with any other securities exchange on which any of
     the  securities  of the  Company  are then listed or proposed to be listed,
     copies of all press releases and other statements made generally  available
     by the  Company  to the  public  concerning  material  developments  in the
     business  of the  Company  and its  Subsidiaries  and  copies  of  material
     communications  sent  to  or  received  from  stockholders,   directors  or
     committees  of  the  Board  of  Directors  of  the  Company  or  any of its
     Subsidiaries and copies of all material communications sent to and received
     from any lender to the Company; and

          (g) with reasonable  promptness  such other  information and financial
     data  concerning  the Company as any person  entitled to receive  materials
     under this Section 9.2 may reasonably request.

     9.3.  Notice of Adverse  Change.  The Company shall promptly give notice to
all holders of any  Securities  (but in any event  within  seven (7) days) after
becoming aware of the existence of any condition or event which constitutes,  or
the occurrence of, any of the following:

          (a) any Event of Noncompliance;

          (b) any other Event of Default;


                                       23



          (c) the  institution or threatening of institution of an action,  suit
     or  proceeding  against  the  Company or any  Subsidiary  before any court,
     administrative  agency or arbitrator,  including,  without limitation,  any
     action of a foreign  government  or  instrumentality,  which,  if adversely
     decided,  could  materially  adversely  affect  the  business,   prospects,
     properties, financial condition or results of operations of the Company and
     its  Subsidiaries,  taken as a whole whether or not arising in the ordinary
     course of business; or

          (d) any  information  relating to the Company or any Subsidiary  which
     could reasonably be expected to materially and adversely affect the assets,
     property,  business or condition (financial or otherwise) of the Company or
     its ability to perform the terms of this Agreement.  Any notice given under
     this  Section 9 shall  specify  the nature and period of  existence  of the
     condition, event, information, development or circumstance, the anticipated
     effect  thereof and what actions the Company has taken  and/or  proposes to
     take with respect thereto.

     9.4.  Compliance With  Agreements;  Compliance With Laws. The Company shall
comply and cause its  Subsidiaries  to comply,  with the terms and conditions of
all material agreements,  commitments or instruments to which the Company or any
of its  Subsidiaries is a party or by which it or they may be bound. The Company
shall and shall cause each of its  Subsidiaries  to duly comply in all  material
respects  with any  material  laws,  ordinances,  rules and  regulations  of any
foreign,  Federal, state or local government or any agency thereof, or any writ,
order  or  decree,  and  conform  to  all  valid  requirements  of  governmental
authorities relating to the conduct of their respective  businesses,  properties
or assets,  including,  but not limited to, the requirements of the FDA Act, the
Prescription  Drug  Marketing  Act,  the CSA,  the  Employee  Retirement  Income
Security Act of 1978, the Environmental  Protection Act, the Occupational Safety
and Health Act, the Foreign Corrupt  Practices Act and the rules and regulations
of each of the agencies administering such acts.

     9.5.  Protection  of Licenses,  etc. The Company  shall and shall cause its
Subsidiaries  to,  maintain,  defend and  protect  to the best of their  ability
licenses and  sublicenses  (and to the extent the Company or a  Subsidiary  is a
licensee or  sublicensee  under any license or  sublicense,  as permitted by the
license or  sublicense  agreement),  trademarks,  trade  names,  service  marks,
patents and applications  therefor and other  proprietary  information  owned or
used by it or them and shall keep duplicate copies of any licenses,  trademarks,
service marks or patents owned or used by it, if any, at a secure place selected
by the Company.

     9.6. Accounts and Records; Inspections.

     (a) The Company shall keep true records and books of account in which full,
true  and  correct  entries  will be made of all  dealings  or  transactions  in
relation to the  business  and affairs of the  Company and its  Subsidiaries  in
accordance with generally accepted accounting principles applied on a consistent
basis.

     (b) The Company  shall permit each holder of any  Securities or any of such
holder's officers, employees or representatives during regular business hours of
the Company,  upon reasonable  notice and as often as such holder may reasonably
request,  to visit and inspect the offices and properties of the Company and its
Subsidiaries and (i) to make extracts or copies


                                       24



of the books, accounts and records of the Company or its Subsidiaries,  and (ii)
to  discuss  the  affairs,   finances  and  accounts  of  the  Company  and  its
Subsidiaries,  with the Company's (or Subsidiary's)  directors and officers, its
independent public accountants, consultants and attorneys.

     (c) Nothing  contained  in this Section 9.6 shall be construed to limit any
rights which a holder of any  Securities  (a "Holder")  may have with respect to
the books and  records of the  Company  and its  Subsidiaries,  to  inspect  its
properties or to discuss its affairs, finances and accounts.

     9.7. Independent Accountants. The Company will retain a firm of independent
certified public accountants  approved by a majority of the directors designated
by the  Purchasers  pursuant  to Section  9.8 of this  Agreement  (an  "Approved
Accounting Firm") to audit the Company's financial statements at the end of each
fiscal year.  In the event the services of the Approved  Accounting  Firm or any
firm of independent  public  accountants  hereafter  employed by the Company are
terminated, the Company will promptly thereafter request the firm of independent
public  accountants  whose  services are  terminated to deliver to any Holders a
letter of such firm setting  forth its  understanding  as to the reasons for the
termination of their services  andwhether there were, during the two most recent
fiscal years or such shorter  period during which said firm had been retained by
the  Company  any  disagreements  between  them and the Company on any matter of
accounting principles or practices,  financial statement disclosure, or auditing
scope or procedure. In its notice, the Company shall state whether the change of
accountants  was  recommended  or  approved  by the  Board of  Directors  or any
committee thereof.  In the event of such termination,  the Company will promptly
thereafter engage another Approved Accounting Firm.

     9.8. Board Members and Meetings.

     (a) The Company  agrees to hold meetings of its Board of Directors at least
four (4) times a year,  at no more than  three-month  intervals.  So long as the
Purchasers own any Securities,  the Purchasers shall have the right to designate
for nomination two persons to be members of the Company's Board of Directors and
the Company shall cause such  designees to be elected on the Closing  Date.  The
Purchasers shall have the right to designate an additional person to be a member
of  the  Board  of  Directors  commencing  with  the  first  Annual  Meeting  of
Stockholders  of the Company to be held after the  Closing  Date and, so long as
the Purchasers own any Securities,  at each annual meeting of Stockholders  held
thereafter, the Purchaser shall have the right to nominate three designees to be
members of the Board of Directors.  The Purchasers  shall also have the right at
all  times  so long  as the  Purchasers  own any  Securities  to  designate  one
additional person to attend all meetings of the Board of Directors or committees
thereof as an observer.

     (b) If at any time  the  Board  of  Directors  designates  a  committee  or
committees  to act on  behalf  of  the  Board,  at  least  one of the  directors
designated by the Purchasers shall be a member of such committee or committees.

     (c) The  following  matters  require  the  approval  of a  majority  of the
directors  designated  by the  Purchasers:  (i)  approval of  budgets;  (ii) the
issuance by the Company of any


                                       25





capital stock at a price below the current market price of such stock; (iii) any
amendment of the Certificate of  Incorporation  or By-Laws of the Company;  (iv)
any action to be taken by the Company which would result in a Change of Control;
and (v) the selection of an Approved Accounting Firm;

     9.9.  Maintenance of Office. The Company will maintain its principal office
at the address of the Company set forth in Section 17.5 of this Agreement  where
notices,  presentments  and demands in respect of this  Agreement and any of the
Securities  may be made upon the Company,  until such time as the Company  shall
notify the holders of the Securities in writing, at least thirty (30) days prior
thereto, of any change of location of such office.

     9.10. Use of Proceeds. The Company shall use all the proceeds received from
the sale of the Securities pursuant to this Agreement for the purposes set forth
in Section 9.10 of the Schedule of Exceptions.

     9.11.  Key Man Life  Insurance.  Within 90 days after the Closing Date, the
Company shall obtain a five year (or longer) "key man"  insurance  policy on the
life of Michael Reicher, naming the Company as beneficiary. Such policy shall be
issued by an insurance  company licensed to do business in New York and having a
rating from Best's not less than "A".  The policy shall  provide that  duplicate
copies of premium  notices shall be delivered to each  Purchaser  simultaneously
with delivery to the Company.  The Company covenants that it will not cancel any
key man life  insurance  policy  referred to herein  without  the prior  written
consent of the holders of a majority of the outstanding  principal amount of the
Debentures.  The Company will pay the premiums on the insurance  policy referred
to in this  Section  9.11 at least ten (10) days  prior to the due date  thereof
and,  simultaneously  with such  payment,  will deliver  proof of payment to the
Purchasers.

     9.12.  Payment of  Debentures.  The Company  shall pay the principal of and
interest  on the  Debentures  in the  time,  the  manner  and the form  provided
therein.

     9.13. Reporting  Requirements.  The Company shall comply with its reporting
and filing obligations  pursuant to Section 13 or 15(d) of the Exchange Act. The
Company shall provide  copies of such reports,  including,  without  limitation,
reports on Form 10-K, 10-Q, 8-K and Schedule 14A promulgated  under the Exchange
Act, or  substantially  the same  information  required to be  contained  in any
successor  form,  to each  holder of  Securities  promptly  upon filing with the
Commission.

     9.14.  Authorization of Shares of Common Stock for Issuance Upon Conversion
of Debentures and Exercise of Warrants and Voting Rights for Debenture  Holders.
The Company willpresent to its shareholders for consideration at the next annual
meeting of the Company's shareholders,  to occur on or prior to June 30, 1998, a
proposal to amend the Company's Certificate of Incorporation to (a) increase the
number of authorized shares of the Company's common stock available for issuance
from 20,000,000 to 40,000,000 shares in order to provide for a sufficient number
of authorized  shares to be available and reserved for issuance upon  conversion
of the  Debentures  and exercise of the Warrants and (b) provide that holders of
Debentures  shall  have the  right to vote as part of a  single  class  with all
holders of Common Stock


                                       26



of the  Company  on all  matters to be voted on by such  stockholders  with such
Holder having such number of votes as shall equal the number of votes they would
have had such Holders converted the entire  outstanding  principal amount of the
Debentures  into Shares  immediately  prior to the record date  relating to such
vote.  Upon receipt of approval from the Company's  shareholders to increase the
Company's  authorized shares from 20,000,000 to 40,000,000  shares,  the Company
will at all times cause there to be reserved for issuance a sufficient number of
Shares upon  conversion of the  Debentures  and exercise of the Warrants.  

     9.15. Listing of Common Stock. As promptly as practicable after the Closing
Date,  the Company shall file the  appropriate  applications  for listing on the
AMEX of the maximum number of Shares  available  under the Company's  authorized
shares which are not  otherwise  reserved for issuance  pursuant to  outstanding
options,  warrants and other convertible securities.  As promptly as practicable
following  receipt of  shareholder  approval of the  amendment to the  Company's
Certificate of  Incorporation  contemplated in Section 9.14 hereof,  the Company
shall file the appropriate applications for listing with the AMEX the Shares not
covered by the listing  application  filed by the Company in accordance with the
preceding  sentence.  The Company shall use its best efforts and work diligently
to accomplish such listings as promptly as practicable after the Closing Date.

     9.16. HSR Act Filing.  The Purchasers  acknowledge and agree that until the
filing,   if   required,   of   all   Pre-Merger   Notifications   and   reports
("Notifications")  pursuant to the Hart-Scott-Rodino  Antitrust Improvements Act
of 1976,  as  amended  (the "HSR  Act"),  with  respect to the  issuance  of the
Securities and the expiration or termination of all applicable  waiting  periods
thereunder,  a Certificate of Amendment to the Certificate of  Incorporation  of
the Company  providing for voting rights for the Holders will not be filed.  The
Company  agrees to file all  Notifications,  if any,  required to be filed by it
under the HSR within sixty (60) days after the date hereof.

     9.17. Further  Assurances.  From time to time the Company shall execute and
deliver to the Purchasers  and the  Purchasers  shall execute and deliver to the
Company such other instruments,  certificates, agreements and documents and take
such other action and do all other things as may be reasonably  requested by the
other party in order to implement or effectuate the terms and provisions of this
Agreement and any of the Securities.

                                    ARTICLE X

                               NEGATIVE COVENANTS

     The Company hereby covenants and agrees,  so long as any Purchaser owns any
Debentures,  it will not (and not allow any of its Subsidiaries to), directly or
indirectly,  without  the prior  written  consent  of the  holders of at least a
majority in aggregate  principal amount of the Debentures then  outstanding,  as
follows:

     10.1.  Payment  of  Dividends;  Stock  Purchase.  Declare  or pay any  cash
dividends on, or make any  distribution to the holders of, any shares of capital
stock of the  Company,  other than  dividends or  distributions  payable in such
capital stock, or purchase, redeem or otherwise


                                       27



acquire  or retire  for value any  shares of  capital  stock of the  Company  or
warrants or rights to acquire such capital stock.

     10.2. Stay, Extension and Usury Laws. At any time insist upon, plead, or in
any  manner  whatsoever  claim or take the  benefit or  advantage  of, any stay,
extension  or usury law  wherever  enacted,  now or at any time  hereinafter  in
force, which may affect the covenants or the performance of the Debentures,  the
Company hereby expressly waiving all benefit or advantage of any such law, or by
resort  to any such law,  hinder,  delay or impede  the  execution  of any power
herein  granted to the Holders but will suffer and permit the execution of every
such power as though no such law had been enacted.

     10.3. Reclassification. Effect any reclassification, combination or reverse
stock split of the common stock of the Company.

     10.4. Liens. Except as otherwise provided in this Agreement, create, incur,
assume or permit to exist any  mortgage,  pledge,  lien,  security  interest  or
encumbrance on any part of its  properties or assets,  or on any interest it may
have therein,  now owned or hereafter acquired,  nor acquire or agree to acquire
property or assets  under any  conditional  sale  agreement  or title  retention
contract, except that the foregoing restrictions shall not apply to:

          (a) liens for taxes,  assessments and other governmental  charges,  if
     payment  thereof shall not at the time be required to be made, and provided
     such  reserve  as  shall  be  required  by  generally  accepted  accounting
     principles consistently applied shall have been made therefor;

          (b) liens of  workmen,  materialmen,  vendors,  suppliers,  mechanics,
     carriers,  warehouseman and landlords or other like liens,  incurred in the
     ordinary  course of business  for sums not then due or being  contested  in
     good faith,  if an adverse  decision in which contest would not  materially
     affect the business of the Company;

          (c) liens  securing  indebtedness  of the Company or any  Subsidiaries
     which (i) is  permitted  under  Section  10.5(h) or (ii) is in an aggregate
     principal amount not exceeding  $500,000 and which liens are subordinate to
     liens on the same assets held by the Holders;

          (d) statutory liens of landlords,  statutory liens of banks and rights
     of set-off,  and other liens  imposed by law, in each case  incurred in the
     ordinary  course of  business  (i) for  amounts not yet overdue or (ii) for
     amounts  that are  overdue  and that are being  contested  in good faith by
     appropriate  proceedings,  so long as such  reserves  or other  appropriate
     provisions,  if any, as shall be required by generally accepted  accounting
     principles shall have been made for any such contested amounts;

          (e) liens incurred or deposits made in the ordinary course of business
     in connection with workers' compensation,  unemployment insurance and other
     types  of  social  security,  or to  secure  the  performance  of  tenders,
     statutory  obligations,  surety and appeal bonds, bids, leases,  government
     contracts, trade contracts, performance and return-of-money bonds and other
     similar  obligations  (exclusive of obligations for the payment of borrowed
     money);


                                       28



          (f) any  attachment  or  judgment  lien not  constituting  an Event of
     Default;

          (g) easements, rights-of-way,  restrictions,  encroachments, and other
     minor  defects or  irregularities  in title,  in each case which do not and
     will not interfere in any material respect with the ordinary conduct of the
     business of the Company or any of its Subsidiaries;

          (h) any (i)  interest  or title of a lessor  or  sublessor  under  any
     lease,  (ii)  restriction or encumbrance that the interest or title of such
     lessor  or  sublessor  may be  subject  to, or (iii)  subordination  of the
     interest of the lessee or sublessee  under such lease to any restriction or
     encumbrance referred to in the preceding clause (ii), so long as the holder
     of such  restriction or encumbrance  agrees to recognize the rights of such
     lessee or sublessee under such lease;

          (i) liens in favor of customs  and  revenue  authorities  arising as a
     matter of law to secure  payment of customs  duties in connection  with the
     importation of goods;

          (j) any zoning or similar  law or right  reserved  to or vested in any
     governmental  office or agency to control or  regulate  the use of any real
     property;

          (k) liens securing  obligations  (other than obligations  representing
     debt for borrowed money) under  operating,  reciprocal  easement or similar
     agreements  entered into in the ordinary  course of business of the Company
     and its Subsidiaries;

          (l) the liens  listed in Section  10.4 of the  Schedule of  Exceptions
     ("Permitted Liens"); and

          (m) the  replacement,  extension  or renewal of any lien  permitted by
     this Section 10.4 upon or in the same property  theretofore  subject or the
     replacement, extension or renewal (without increase in the amount or change
     in any direct or contingent obligor) of the indebtedness secured thereby.

     10.5.  Indebtedness.  Create,  incur, assume,  suffer,  permit to exist, or
guarantee,  directly or indirectly, any indebtedness,  excluding,  however, from
the operation of the covenant:

          (a) any  indebtedness or the incurring,  creating or assumption of any
     indebtedness  secured by liens  permitted by the provisions of Section 10.4
     (c) above;

          (b) the  endorsement  of  instruments  for the  purpose  of deposit or
     collection in the ordinary course of business;

          (c)  indebtedness  which  may,  from  time  to  time  be  incurred  or
     guaranteed by the Company which in the aggregate  principal amount does not
     exceed  $500,000  and  is  subordinate  to  the  indebtedness   under  this
     Agreement;

          (d) indebtedness  existing on the date hereof and described in Section
     10.5 of the Schedule of Exceptions;


                                       29



          (e) indebtedness relating to contingent obligations of the Company and
     its Subsidiaries under guaranties in the ordinary course of business of the
     obligations of suppliers,  customers,  and licensees of the Company and its
     Subsidiaries;

          (f)   indebtedness   relating   to  loans  from  the  Company  to  its
     Subsidiaries;

          (g) indebtedness relating to capital leases in an amount not to exceed
     $500,000;

          (h)  indebtedness  relating to a working  capital line of credit in an
     amount not to exceed $5,000,000;

          (i)  accounts  or  notes  payable  arising  out  of  the  purchase  of
     merchandise or services in the ordinary course of business; or

          (j)  indebtedness  (if any) expressly  permitted by, and in accordance
     with, the terms and conditions of this Agreement.

     For purposes hereof, the term "indebtedness" shall mean and include (A) all
items which would be included on the  liability  side of a balance  sheet of the
Company  (or a  Subsidiary)  as of  the  date  on  which  indebtedness  is to be
determined,  excluding  capital  stock,  surplus,  capital  and  earned  surplus
reserves,  which, in effect,  were appropriations of surplus or offsets to asset
values (other than reserves in respect of obligations, the amount, applicability
or validity of which is, at such date,  being  contested  by such  corporation),
deferred credits of amounts representing  capitalization of leases; (B) the full
amount of all indebtedness of others guaranteed or endorsed  (otherwise than for
the purpose of collection) by the Company (or  Subsidiary) for which the Company
(or  Subsidiary)  is  obligated,  contingently  or  otherwise,  to  purchase  or
otherwise  acquire,  or for the  payment or  purchase  of which the  Company (or
Subsidiary) has agreed,  contingently or otherwise,  to advance or supply funds,
or with respect to which the Company (or  Subsidiary)  is  contingently  liable,
including, without limitation,  indebtedness for borrowed money and indebtedness
guaranteed  or supported  indirectly by the Company (or  Subsidiary)  through an
agreement,  contingent or otherwise (1) to purchase the indebtedness,  or (2) to
purchase,  sell,  transport  or lease (as  lessee  or  lessor)  property,  or to
purchase or sell services at prices or in amounts  designed to enable the debtor
to make payment of the  indebtedness or to assure the owner of the  indebtedness
against  loss,  or (3) to supply funds to or in any other  manner  invest in the
debtor; and (C) indebtedness secured by any mortgage,  pledge, security interest
or lien whether or not the indebtedness secured thereby shall have been assumed;
provided,  however,  that such term shall not mean and include any  indebtedness
(x) in respect to which monies  sufficient to pay and discharge the same in full
shall have been deposited with a depositary,  agency or trustee in trust for the
payment thereof, or (y) as to which the Company (or Subsidiary) is in good faith
contesting,  provided that an adequate  reserve  therefor has been set up on the
books of the Company (or Subsidiary).

     10.6.  Merger,  Consolidation,  etc. Merge or  consolidate  with any person
(except that the Company may merge with any  wholly-owned  Subsidiary so long as
the Company is the


                                       30



surviving  corporation in such merger),  or sell,  transfer,  lease or otherwise
dispose of 10% or more of its  consolidated  assets (as shown on the most recent
financial statements of the Company orthe Subsidiary, as the case may be) in any
single  transaction  or series of related  transactions  (other than the sale of
inventory  in  the  ordinary  course  of  business),  or  liquidate,   dissolve,
recapitalize  or  reorganize  in any  form of  transaction,  or  acquire  all or
substantially all of the capital stock or assets of another business or entity.

     10.7.  Amendment  of  Charter  Documents.  Except as  contemplated  by this
Agreement,  make any amendment to the Certificate of Incorporation as heretofore
amended, or By-Laws, as heretofore amended, of the Company or the Certificate of
Incorporation or By-Laws of any of its Subsidiaries.

     10.8. Loans and Advances.  Except for loans and advances  outstanding as of
the Closing Date and set forth in Section  10.8 of the  Schedule of  Exceptions,
directly or indirectly, make any advance or loan to, or guarantee any obligation
of, any person, firm or entity, except for (i) loans to employees of the Company
not in excess of $25,000 to any one employee or $100,000 in the aggregate  where
such loan(s) are necessary under exigent  circumstances  of such  employee(s) as
determined by the Board of Directors, or (ii) intercompany loans or advances and
those provided for in this Agreement.

     10.9.  Intercompany Transfers;  Transactions With Affiliates;  Diversion of
Corporate Opportunities.

     (a) Make any intercompany transfers of monies or other assets in any single
transaction  or series of  transactions,  except as otherwise  permitted in this
Agreement.

     (b)  Engage  in  any  transaction  with  any of  the  officers,  directors,
employees or affiliates of the Company or of its  Subsidiaries,  except on terms
no less favorable to the Company or the Subsidiary as could be obtained at Arm's
Length (as hereinafter defined).

     (c) Divert (or permit anyone to divert) any business or  opportunity of the
Company or Subsidiary to any other corporate or business entity.

     10.10.  Personal  Expenses.  Except  as set forth in  Section  10.10 of the
Schedule  of  Exceptions,  permit any person to charge to the Company (or any of
its  Subsidiaries)  any  expense  not  directly  related to the  business of the
Company (or Subsidiary), including, without limitation, expenses for country and
health club membership fees and expenses,  and personal travel and entertainment
expenses, or reimburse such person for any such expense.

     10.11. Other Business. Enter into or engage, directly or indirectly, in any
business other than the business currently conducted or proposed to be conducted
as contemplated by this Agreement by the Company or any Subsidiary.

     10.12. Investments. Make any investments in, or purchase any stock, option,
warrant,  or other security or evidence of indebtedness of, any person or entity
(exclusive  of any  Subsidiary),  other than  obligations  of the United  States
Government or certificates of deposit or


                                       31



other  instruments  maturing  within  one year  from the date of  purchase  from
financial institutions with capital in excess of $100 million.

     10.13.  Benefit Plans. Except as contemplated by this Agreement:  (a) enter
into any  agreement  to  provide  for or  otherwise  establish  any  written  or
unwritten  employee  benefit  plan,  program or other  arrangement  of any kind,
covering current or former  employees of the Company or its Subsidiaries  except
for (i) any such  plan,  program or  arrangement  expressly  permitted  under an
agreement  listed in Section 10.13 of the Schedule of  Exceptions,  and (ii) any
such plan, program or arrangement which a company similar to the Company in size
and  financial  condition,  and which is  engaged  in a  business  substantially
similar to the business of the Company and its Subsidiaries,  would establish or
implement for the benefit of its employees  inthe  ordinary  course of business;
provided,  however, that no such plan, program or arrangement may be established
or  implemented  if such  action  would have a  material  affect on the terms of
employment of the employees of the Company or its  Subsidiaries,  or (b) provide
for or agree to any  material  increase  in any  benefit  provided to current or
former employees of the Company or its Subsidiaries  over that which is provided
to such individuals pursuant to a plan or arrangement  disclosed in Section 4.18
of the Schedule of  Exceptions  to this  Agreement as of the Closing  Date.  For
purpose of this  Section,  a "material  increase"  shall not include any cost of
living increase or similar regular increase agreed to pursuant to the Collective
Bargaining  Agreement  between  Halsey Drug Co.,  Inc.  and the Drug,  Chemical,
Cosmetic,  Plastics and Affiliated  Industries  Warehouse  Employees  Local 815,
International Brotherhood of Teamsters.

     10.14. Capital Expenditures. Other than for a capital expenditure contained
in any budget  approved by the Board of  Directors,  including a majority of the
directors designated by thePurchasers,  or capital expenditures not contained in
any such budget,  but which do not exceed  $100,000 in the aggregate  during any
fiscal year of the Company, make or commit to make any capital expenditures.

     10.15. Arm's Length Transactions.  Enter into any transaction,  contract or
commitment  or take any action other than at Arm's Length.  For purposes  hereof
the term "Arm's  Length" means a transaction  or negotiation in which each party
is  completely  independent  of the other,  seeks to obtain terms which are most
favorable to it and has no economic or other  interest in making  concessions to
the other party.

                                   ARTICLE XI

                               REGISTRATION RIGHTS

     11.1. Restrictive Legend. Each certificate  representing (i) any Debenture,
(ii) the Warrants or (iii) any Shares or other  securities  issued in respect of
the  Debentures,  Warrants  or Shares,  upon any stock  split,  stock  dividend,
recapitalization, merger, consolidation or similar event or upon the exercise of
the  Warrants or  conversion  of the  Debentures,  shall be stamped or otherwise
imprinted  with a legend  in the  following  form  (in  addition  to any  legend
required under applicable state securities laws):


                                       32



     "THIS [NAME OF  SECURITY]  [AND THE COMMON  STOCK  ISSUABLE  UPON
     [CONVERSION]  [EXERCISE]  HEREOF] HAVE NOT BEEN REGISTERED  UNDER
     THE SECURITIES ACT OF 1933, AS AMENDED,  NOR ANY STATE SECURITIES
     LAW AND MAY  NOT BE  PLEDGED,  SOLD,  ASSIGNED,  HYPOTHECATED  OR
     OTHERWISE  TRANSFERRED  UNTIL (1) A  REGISTRATION  STATEMENT WITH
     RESPECT  THERETO IS  EFFECTIVE  UNDER THE ACT AND ANY  APPLICABLE
     STATE  SECURITIES  LAW OR (2) THE COMPANY  RECEIVES AN OPINION OF
     COUNSEL  TO THE  COMPANY  OR OTHER  COUNSEL TO THE HOLDER OF SUCH
     [NAME OF SECURITY]  REASONABLY  SATISFACTORY  TO THE COMPANY THAT
     SUCH [NAME OF  SECURITY]  [AND/OR  COMMON  STOCK] MAY BE PLEDGED,
     SOLD, ASSIGNED,  HYPOTHECATED OR TRANSFERRED WITHOUT AN EFFECTIVE
     REGISTRATION   STATEMENT  UNDER  THE  ACT  OR  APPLICABLE   STATE
     SECURITIES LAWS.

     11.2. Certain Definitions.  As used in this Article 11, the following terms
shall have the following respective meanings:

     "Holders"  shall mean the  Purchasers  or any person to whom a Purchaser or
transferee of a Purchaser has assigned any Debenture, Warrants or Shares.

     "Initiating  Holders"  shall  mean any  persons  who in the  aggregate  are
Holders of at least a majority of the Shares.

     "Registrable  Securities" shall mean any Shares issued upon exercise of the
Warrants,  conversion  of any  Debenture or in respect of the Shares issued upon
exercise of the Warrants or conversion  of any  Debenture  upon any stock split,
stock dividend, recapitalization or similar event.

     "Requesting  Stockholders'  shall mean holders of securities of the Company
entitled to have  securities  included in any  registration  pursuant to Section
11.3 and who shall request such inclusion.

     The terms  "register,"  "registered"  and  "registration"  shall refer to a
registration  effected  by  preparing  and filing a  registration  statement  in
compliance  with  the  Securities  Act  and  applicable  rules  and  regulations
thereunder,  and  the  declaration  or  ordering  of the  effectiveness  of such
registration statement.

     "Registration  Expenses" shall mean all expenses incurred by the Company in
compliance with Sections 11.3 and 11.4 hereof,  including,  without  limitation,
all registration and filing fees,  printing expenses,  fees and disbursements of
counsel  for the  Company,  blue  sky  fees and  expenses,  reasonable  fees and
disbursements  of one counsel for all the selling  Holders for a "due diligence"
examination of the Company, and the expense of any special audits incident to or
required by any such  registration  (but excluding the  compensation  of regular
employees  of the  Company,  which  shall be paid in any event by the  Company),
exclusive of Selling Expenses.


                                       33



     "Restricted  Securities"  shall mean the securities of the Company required
to bear or bearing the legend set forth in Section 11.1 hereof.

     "Selling  Expenses"  shall  mean all  underwriting  discounts  and  selling
commissions  applicable to the sale of  Registrable  Securities and all fees and
disbursements of counsel for any Holder, except as otherwise provided herein.

     11.3. Requested Registration.

     (a)  Requests  for  Registration.   The  Initiating   Holders  may  request
registration  under  the  Securities  Act of all or  part of  their  Registrable
Securities.  Within ten (10) days after receipt of any such request, the Company
will give written notice of such requested  registration to all other Holders of
Registrable  Securities and any other  stockholder  having  registration  rights
which entitle it to participate in such  registration.  The Company will include
in such  registration  all  Registrable  Securities with respect to which it has
received written  requests for inclusion  therein within fifteen (15) days after
receipt of the  Company's  notice.  The Company  shall cause its  management  to
cooperate  fully and to use its best efforts to support the  registration of the
Registrable  Securities and the sale of the Registrable  Securities  pursuant to
such registration as promptly as is practicable. Such cooperation shall include,
but not be limited to, management's  attendance and reasonable  presentations in
respect of the Company at road shows with respect to the offering of Registrable
Securities. The registration requested under this Section 11.3(a) is referred to
herein as a "Demand Registration."

     (b) Number of Registrations.  The Holders of Registrable Securities will be
entitled to request one (1) Demand  Registration  for which the Company will pay
all  Registration   Expenses.   A  registration  will  not  count  as  a  Demand
Registration until it has become effective;  provided,  however, that whether or
not it becomes  effective  the  Company  will pay all  Registration  Expenses in
connection with any registration so initiated.

     (c)  Priority  on  Demand  Registrations.  If a Demand  Registration  is an
underwritten  offering,  and the  managing  underwriters  advise the  Company in
writing that in their opinion the number of Registrable  Securities requested to
be included  exceeds the number which can be sold in such offering,  the Company
will include in such registration such number of Shares, which in the opinion of
such  underwriters,  may be  sold,  allocated  among  the  Holders  electing  to
participate pro rata in accordance  with the amounts of securities  requested to
be so included by the  respective  Holders.  The Company will not include in any
Demand Registration any securities which are not Registrable  Securities without
the written consent of the Holders of a majority of the  Registrable  Securities
requesting  such  registration.  Any persons  other than Holders of  Registrable
Securities  who  participate  in a  Demand  Registration  which  is  not  at the
Company's  expense  must  pay  their  share  of  the  Registration  Expenses.  A
registration  shall  not  count as a Demand  Registration  if some or all of the
Shares which any Holder  desires to include  therein are not included due to the
determination of the managing  underwriters referred to in the first sentence of
this Section 11.3(c).

     (d) Restrictions on Demand Registrations. The Company will not be obligated
to effect any Demand Registration within six (6) months after the effective date
of a previous


                                       34



registration in which the Holders of Registrable Securities were given piggyback
rights  pursuant  to  Section  11.4  other than a  registration  of  Registrable
Securities  intended to be offered on a continuous  or delayed  basis under Rule
415 or any successor rule under the Securities Act (a "Shelf Registration").

     11.4. Piggyback Registrations.

     (a) Right to  Piggyback.  Whenever the Company  proposes to register any of
its  securities  under the  Securities  Act  (other  than  pursuant  to a Demand
Registration or pursuant to a registration on Forms S-4 or S-8 or any successors
to  such  forms)  and the  registration  form  to be  used  may be used  for the
registration   and  contemplated   disposition  of  Registrable   Securities  (a
"Piggyback  Registration"),  the Company will give prompt  written notice to all
Holders  of   Registrable   Securities   of  its  intention  to  effect  such  a
registration.  The Company will  include in such  registration  all  Registrable
Securities with respect to which the Company has received  written  requests for
inclusion  therein  within  thirty (30) days after the receipt of the  Company's
notice.

     (b)  Piggyback  Expenses.  The  Registration  Expenses  of the  Holders  of
Registrable Securities will be paid by the Company.

     (c) Priority on Primary  Registrations.  If a Piggyback  Registration is an
underwritten  primary  registration  on behalf of the Company,  and the managing
underwriters  advise the Company in writing that in their  opinion the number of
securities  requested  to be  included in such  registration  exceeds the number
which  can  be  sold  in  such  offering,  the  Company  will  include  in  such
registration  (i) first,  the  securities  the Company  proposes  to sell,  (ii)
second, the Registrable Securities and securities of the Company with respect to
which similar  registration rights have heretofore been granted and requested to
be included in such  registration,  pro rata in  accordance  with the amounts of
Registrable  Securities and such  securities  requested to be so included by the
respective  Holders and holders of such  securities  of the  Company;  and (iii)
third, any other securities requested to be included in such registration.

     (d) Priority on Secondary Registrations.  If a Piggyback Registration is an
underwritten  secondary  registration  on behalf  of  holders  of the  Company's
securities,  and the managing underwriters advise the Company in writing that in
their  opinion  the  number  of  securities  requested  to be  included  in such
registration exceeds the number which can be sold in such offering,  the Company
will include in such  registration  (i) first,  the  securities  requested to be
included therein by the holders requesting such  registration,  (ii) second, the
Registrable  Securities  and  securities  of the Company  with  respect to which
similar  registration  rights have  heretofore  been granted and requested to be
included  in such  registration,  pro rata in  accordance  with the  amounts  of
Registrable  Securities and such  securities  requested to be so included by the
respective  Holders and holders of such  securities  of the  Company,  and (iii)
third, other securities requested to be included in such registration.

     (e) Other Restrictions. The Company hereby agrees that if it has previously
filed a registration  statement with respect to Registrable  Securities pursuant
to Section 11.3 or pursuant


                                       35



to this Section 11.4, and if such previous  registration  has not been withdrawn
or  abandoned,  the  Company  will not file or cause to be  effected  any  other
registration  of any of its  equity  securities  or  securities  convertible  or
exchangeable  into or exercisable for its equity securities under the Securities
Act (except on Form S-8 or any other similar form for employee  benefit  plans),
whether  on its own  behalf or at the  request  of any holder or holders of such
securities,  until a period  of at least six (6)  months  has  elapsed  from the
effective  date  of  such  previous   registration  or,  if  sooner,  until  all
Registrable Securities included in such previous registration have been sold.

     11.5. Holdback Agreements.

     (a)  Each  Holder  of  Registrable  Securities  which  is a  party  to this
Agreement  agrees  not to  effect  any  public  sale or  distribution  of equity
securities of the Company, or any securities convertible into or exchangeable or
exercisable  for such  securities,  during  the seven (7) days  prior to and the
90-day  period  beginning  on the  effective  date  of any  underwritten  Demand
Registration or any underwritten  Piggyback Registration (except as part of such
underwritten  registration)  or, if  sooner,  until all  Registrable  Securities
included within such registration have been sold.

     (b) The Company agrees (i) not to effect any public sale or distribution of
its equity  securities,  or any securities  convertible  into or exchangeable or
exercisable  for such  securities,  during  the seven (7) days  prior to and the
90-day  period  beginning  on the  effective  date  of any  underwritten  Demand
Registration or any underwritten  Piggyback Registration (except as part of such
underwritten  registration or pursuant to registrations on Form S-8 or any other
similar form for employee  benefit plans) or, if sooner,  until all  Registrable
Securities included within such registration have been sold, and (ii) to use its
reasonable  best efforts to cause each holder of its equity  securities,  or any
securities  convertible into or exchangeable or exercisable for such securities,
purchased from the Company at any time after the date of this  Agreement  (other
than in a registered  public offering) to agree not to effect any public sale or
distribution of any such  securities  during such period (except as part of such
underwritten  registration,  if otherwise  permitted)  or, if sooner,  until all
Registrable Securities included within such registration have been sold.

     11.6.  Registration   Procedures.   Whenever  the  Holders  of  Registrable
Securities have requested that any Registrable Securities be registered pursuant
to this Article 11, the Company will use its  reasonable  best efforts to effect
the registration and the sale of such Registrable  Securities in accordance with
the intended  method of disposition  thereof,  and pursuant  thereto the Company
will as expeditiously as possible:

          (a) prepare and file with the Commission a registration statement with
     respect to such Registrable  Securities,  which registration statement will
     state that the Holders of Registrable  Securities  covered thereby may sell
     such Registrable Securities either under such registration statement or, at
     any Holder's proper request, pursuant to Rule 144 (or any similar rule then
     in effect),  and use its best efforts to cause such registration  statement
     to become effective  (provided that before filing a registration  statement
     or prospectus or any  amendments or supplements  thereto,  the Company will
     furnish to the counsel selected by the Holders of a


                                       36



     majority  of  the  Registrable  Securities  covered  by  such  registration
     statement  copies  of  all  such  documents  proposed  to be  filed,  which
     documents will be subject to the review of such counsel);

          (b)  prepare  and  file  with  the  Commission   such  amendments  and
     supplements  to such  registration  statement  and the  prospectus  used in
     connection  therewith  as  may  be  necessary  to  keep  such  registration
     statement  effective for the period set forth in Section 11.6(j) hereof and
     comply  with the  provisions  of the  Securities  Act with  respect  to the
     disposition of all securities covered by such registration statement during
     such period in accordance  with the intended  methods of disposition by the
     sellers thereof set forth in such registration statement;

          (c) furnish to each seller of  Registrable  Securities  such number of
     copies  of such  registration  statement,  each  amendment  and  supplement
     thereto, the prospectus included in such registration  statement (including
     each  preliminary  prospectus)  and such other documents as such seller may
     reasonably   request  in  order  to  facilitate  the   disposition  of  the
     Registrable Securities owned by such seller;

          (d) use its best  efforts  to  register  or qualify  such  Registrable
     Securities   under  such  other   securities  or  blue  sky  laws  of  such
     jurisdictions  as any seller  reasonably  requests and do any and all other
     acts and things  which may be  reasonably  necessary or advisable to enable
     such seller to consummate  the  disposition  in such  jurisdictions  of the
     Registrable Securities owned by such seller (provided that the Company will
     not be required to (i) qualify generally to do business in any jurisdiction
     where  it  would  not  otherwise  be  required  to  qualify  but  for  this
     subsection,  (ii) subject itself to taxation in any such  jurisdiction,  or
     (iii) consent to general service of process in any such jurisdiction);

          (e) notify each  seller of such  Registrable  Securities,  at any time
     when a prospectus  relating  thereto is required to be delivered  under the
     Securities  Act,  of the  happening  of any  event as a result of which the
     prospectus  included  in such  registration  statement  contains  an untrue
     statement of a material  fact or omits to state any fact  necessary to make
     the  statements  therein  not  misleading,  and, at the request of any such
     seller,  the  Company  will  prepare  a  supplement  or  amendment  to such
     prospectus  so that,  as  thereafter  delivered to the  purchasers  of such
     Registrable  Securities,   such  prospectus  will  not  contain  an  untrue
     statement  of a material  fact or omit to state any fact  necessary to make
     the statements therein not misleading;

          (f)  cause  all  such  Registrable  Securities  to be  listed  on each
     securities  exchange on which similar  securities issued by the Company are
     then listed;

          (g) provide a transfer  agent and registrar  for all such  Registrable
     Securities  not  later  than  the  effective  date  of  such   registration
     statement;

          (h) enter into such customary  agreements  (including an  underwriting
     agreement in customary form) and take all such other actions as the Holders
     of a majority of the Registrable Securities being sold or the underwriters,
     if  any,  reasonably  request  in  order  to  expedite  or  facilitate  the
     disposition of such Registrable Securities (including,  without limitation,
     using its best efforts to effect a stock split or a combination of shares);


                                       37



          (i)  make  available  for  inspection  by any  seller  of  Registrable
     Securities,  any underwriter  participating in any disposition  pursuant to
     such registration  statement,  and any attorney,  accountant or other agent
     retained  by any such  seller  or  underwriter,  all  financial  and  other
     records,  pertinent corporate documents and properties of the Company,  and
     cause the  Company's  officers,  directors  and  employees  to  supply  all
     information reasonably requested by any such seller, underwriter, attorney,
     accountant or agent in connection with such registration statement; and

          (j) keep each  registration  statement  effective until the earlier to
     occur  of (i)  the  Holder  or  Holders  have  completed  the  distribution
     described in the registration statement relating thereto (including a Shelf
     Registration) and (ii) two years.

     11.7.  Expenses of  Registration.  All  Registration  Expenses  incurred in
connection with a  registration,  qualification  or compliance  pursuant to this
Article 11 shall be borne by the  Company,  and all  Selling  Expenses  shall be
borne by the  Holders  and the  Requesting  Stockholders  of the  securities  so
registered  pro rata on the basis of the number of their  shares so  registered;
provided,   however,  that  the  Company  shall  not  be  required  to  pay  any
Registration  Expenses  if,  as a result  of the  withdrawal  of a  request  for
registration by Initiating Holders,  the registration  statement does not become
effective,  in which case the Holders  and  Requesting  Stockholders  requesting
registration shall bear such Registration  Expenses pro rata on the basis of the
number of their shares so included in the registration  request,  and,  further,
that such registration shall not be counted as a Demand Registration pursuant to
Section 11.3.

     11.8. Indemnification.

     (a) The  Company  will  indemnify  each  Holder,  each  Holder's  officers,
directors and partners, and each person controlling such Holder, with respect to
which registration,  qualification or compliance of such Holder's securities has
been  effected  pursuant to this Article 11, and each  underwriter,  if any, and
each person who controls any underwriter,  against all claims,  losses,  damages
and liabilities (or actions in respect  thereof)  arising out of or based on any
untrue  statement (or alleged untrue  statement) of a material fact contained in
any  registration  statement,  prospectus,  offering  circular or other document
(including any related registration statement notification or the like) incident
to any such registration,  qualification or compliance, or based on any omission
(or alleged  omission) to state  therein a material  fact  required to be stated
therein or  necessary  to make the  statements  therein not  misleading,  or any
violation  by the  Company  of the  Securities  Act or any  rule  or  regulation
thereunder applicable to the Company and relating to action or inaction required
of the  Company  in  connection  with any such  registration,  qualification  or
compliance,  and will  reimburse  each  such  Holder,  each  Holder's  officers,
directors  and  partners,  and each person  controlling  such Holder,  each such
underwriter and each person who controls any such underwriter, for any legal and
any other  expenses  reasonably  incurred in connection  with  investigating  or
defending any such claim, loss, damage,  liability or action, provided, that the
Company  will not be liable in any such case to the extent  that any such claim,
loss,  damage,  liability  or  action  arises  out of or is based on any  untrue
statement or omission of material fact based upon written information  furnished
to the Company by such Holder or underwriter and stated to be  specifically  for
use therein.


                                       38



     (b) Each Holder and Requesting  Stockholder will, if Registrable Securities
held  by it are  included  in the  securities  as to  which  such  registration,
qualification  or compliance is being effected,  indemnify the Company,  each of
the  Company's  directors  and  officers  and each  underwriter,  if any, of the
Company's  securities  covered by such registration  statement,  each person who
controls the Company or such  underwriter  within the meaning of the  Securities
Act and the rules and regulations  thereunder,  each other Holder and Requesting
Stockholder and each of their officers,  directors and partners, and each person
controlling such Holder or Requesting  Stockholder,  against all claims, losses,
damages and liabilities (or actions in respect  thereof) arising out of or based
on any untrue  statement  (or  alleged  untrue  statement)  of a  material  fact
contained in any such registration statement,  prospectus,  offering circular or
other document incident to any such  registration,  qualification or compliance,
or based on any omission (or alleged  omission) to state therein a material fact
required to be stated  therein or necessary to make the  statements  therein not
misleading,  and will reimburse the Company,  its officers and  directors,  each
underwriter, each person controlling the Company or such underwriter, each other
Holder and Requesting  Stockholders,  their  officers,  directors,  partners and
control  persons  for any legal or any other  expenses  reasonably  incurred  in
connection  with  investigating  or  defending  any such  claim,  loss,  damage,
liability or action,  in each case to the extent,  but only to the extent,  that
such untrue  statement  (or alleged  untrue  statement)  or omission (or alleged
omission) is made in such registration statement,  prospectus, offering circular
or other  document in reliance upon and in conformity  with written  information
furnished to the Company by such Holder or Requesting  Stockholder and stated to
be specifically for use therein; provided, however, that the obligations of each
Holder and Requesting Stockholders hereunder shall be limited to an amount equal
to the proceeds to each such Holder or Requesting Stockholder of securities sold
as contemplated herein.

     (c) Each party  entitled to  indemnification  under this  Section 11.8 (the
"Indemnified  Party")  shall  give  notice  to the  party  required  to  provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the  Indemnifying  Party to assume  the  defense of any such claim or any
litigation  resulting  therefrom,  provided,  that counsel for the  Indemnifying
Party,  who shall conduct the defense of such claim or any litigation  resulting
therefrom,  shall be approved by the Indemnified Party (whose approval shall not
be unreasonably withheld and for such purpose approval is hereby given for Wolf,
Block, Schorr and Solis-Cohen LLP ("Wolf,  Block") to be such counsel),  and the
Indemnified  Party may participate in such defense at such party's expense,  and
provided,  further,  that the failure of any Indemnified Party to give notice as
provided  herein  shall not relieve the  Indemnifying  Party of its  obligations
under this Article 11 unless such failure has had a material  adverse  effect on
such claim. The parties to this Agreement reserve any rights to claim under this
Agreement  for  damages  actually  incurred  by  reason  of any  failure  of the
Indemnified  Party to give prompt notice of a claim.  To the extent  counsel for
the  Indemnifying  Party shall in such  counsel's  reasonable  judgment,  have a
conflict  in  representing  an  Indemnified   Party  in  conjunction   with  the
Indemnifying Party or other Indemnified Parties, such Indemnified Party shall be
entitled to separate counsel at the expense of the Indemnifying Party subject to
the approval of such counsel by the Indemnified  Party (whose approval shall not
be unreasonably withheld and for such purpose approval is hereby given for Wolf,
Block to be such counsel).  No  Indemnifying  Party,  in the defense of any such
claim or litigation,  shall,  except with the consent of each Indemnified Party,
consent to entry of


                                       39



any  judgment  or enter  into  any  settlement  which  does  not  include  as an
unconditional  term  thereof  the giving by the  claimant or  plaintiff  to such
Indemnified  Party of a release  from all  liability in respect of such claim or
litigation.  Each  Indemnified  Party shall furnish such  information  regarding
itself or the claim in question as an Indemnifying  Party may reasonably request
in writing and as shall be reasonably required in connection with the defense of
such claim and any litigation resulting therefrom.

     11.9.  Information by Holders. Each Holder of Registrable  Securities,  and
each Requesting  Stockholder  holding  securities  included in any registration,
shall  furnish  to  the  Company  such  information  regarding  such  Holder  or
Requesting   Stockholder  and  the  distribution  proposed  by  such  Holder  or
Requesting  Stockholder as the Company may reasonably  request in writing and as
shall be reasonably required in connection with any registration,  qualification
or compliance referred to in this Article 11.

     11.10. Limitations on Registration of Issues of Securities.  From and after
the date of this Agreement,  the Company shall not enter into any agreement with
any holder or  prospective  holder of any  securities of the Company giving such
holder or  prospective  holder the right to require the Company to register  any
securities of the Company  equal to or more  favorable  than the rights  granted
under  this  Article  11.  Any  right  given by the  Company  to any  holder  or
prospective   holder  of  the  Company's   securities  in  connection  with  the
registration of securities shall be conditioned such that it shall be consistent
with the  provisions  of this  Article  11 and with the  rights  of the  Holders
provided in this  Agreement and such holder or  prospective  holder agrees to be
bound by the terms of this Article 11.

     11.11. Rule 144 Reporting.  With a view to making available the benefits of
certain rules and regulations of the Commission which may permit the sale of the
Restricted Securities to the public without registration, the Company agrees to:

          (a) make and keep  public  information  available  as those  terms are
     understood  and  defined  and  interpreted  in and under Rule 144 under the
     Securities  Act, at all times from and after ninety (90) days following the
     effective date of the first  registration under the Securities Act filed by
     the  Company for an offering  of its  securities  to anyone  other than its
     employees;

          (b) use its  best  efforts  to file  with the  Commission  in a timely
     manner all reports and other  documents  required of the Company  under the
     Securities  Act and the  Securities  Exchange  Act at any time after it has
     become subject to such reporting requirements; and

          (c) so long as the Purchaser owns any Restricted  Securities,  furnish
     to the Purchaser  forthwith upon request a written statement by the Company
     as to its compliance  with the reporting  requirements  of Rule 144 (at any
     time from and after ninety (90) days  following the  effective  date of the
     first  registration  statement  filed by the Company for an offering of its
     securities to anyone other than its  employees),  and of the Securities Act
     and the  Exchange  Act (at any time  after it has  become  subject  to such
     reporting  requirements),  a copy of the most  recent  annual or  quarterly
     report of the Company, and such other reports and documents so filed as the
     Purchaser  may  reasonably  request  in  availing  itself  of any  rule  or
     regulation  of the  Commission  allowing  the  Purchaser  to sell  any such
     securities without registration.


                                       40



     11.12.   Participation  in  Underwritten   Registrations.   No  person  may
participate in any  underwritten  registration  hereunder unless such person (i)
agrees  to  sell  such  person's   securities  on  the  basis  provided  in  any
underwriting  arrangements approved by the persons entitled hereunder to approve
such arrangements and (ii) completes and executes all reasonable questionnaires,
powers of attorney,  indemnities,  underwriting  agreements and other  documents
required under the terms of such underwriting arrangements.

     11.13.  Selection  of  Underwriters.  If  any  Demand  Registration  is  an
underwritten  offering,  the Holders of a majority of the Registrable Securities
included in such registration have the right to select the investment  banker(s)
and  manager(s)  to  administer  the  offering,  subject to the  approval of the
Company (which approval will not be unreasonably  withheld). If any registration
other than a Demand Registration is an underwritten  offering,  the Company will
have the right to select the  investment  banker(s) and manager(s) to administer
the  offering,  subject to the  approval  of the  Holders  of a majority  of the
Registrable Securities included in such registration (which approval will not be
unreasonably withheld).

     11.14. Termination of Registration Rights. The rights of Holders to request
a Demand Registration or participate in a Piggyback Registration shall expire on
March 10, 2007.

                                   ARTICLE XII

                               EVENTS OF DEFAULTS

     12.1.  Events of Default.  If any of the following events (herein called an
"Event of Default") shall occur and be continuing:

          (a) if the Company shall default in the payment of (i) any part of the
     principal  of any  Debenture,  when the same shall  become due and payable,
     whether at maturity or at a date fixed for prepayment or by acceleration or
     otherwise;  or (ii) the  interest  on any  Debenture;  when the same  shall
     become due and payable;  and in each case such default shall have continued
     without cure for ten (10) days after written notice (a "Default Notice") is
     given to the Company of such default;

          (b) If the  Company  shall  default in the  performance  of any of the
     covenants  contained  in  Articles  9 or 10 and  such  default  shall  have
     continued without cure for fifteen (15) daysafter a Default Notice is given
     to the Company  with  respect to such  covenant by any Holder or Holders of
     the  Debentures  (the Company to give forthwith to all other Holders of the
     Debentures at the time  outstanding  written  notice of the receipt of such
     Default Notice, specifying the default referred to therein);

          (c) If the  Company  shall  default  in the  performance  of any other
     material agreement or covenant contained in this Agreement and such default
     shall not have been remedied to the  satisfaction  of the Holder or Holders
     of at least a majority in aggregate principal amount of the Debentures then
     outstanding, within thirty-five (35) days after a Default Notice shall have
     been  given to the  Company  (the  Company to give  forthwith  to all other
     Holders of Debentures at the time outstanding written notice of the receipt
     of such Default Notice, specifying the default referred to therein);


                                       41



          (d) If any  representation or warranty made in this Agreement or in or
     any  certificate  delivered  pursuant  hereto  shall  prove  to  have  been
     incorrect in any material respect when made;

          (e)  If  any  default  shall  occur  under  any  indenture,  mortgage,
     agreement,  instrument or commitment  evidencing or under which there is at
     the time  outstanding any  indebtedness of the Company or a Subsidiary,  in
     excess of $100,000, or which results in such indebtedness,  in an aggregate
     amount (with other defaulted  indebtedness) in excess of $250,000  becoming
     due and payable  prior to its due date and if such  indenture or instrument
     so requires,  the holder or holders  thereof (or a trustee on their behalf)
     shall have declared such indebtedness due and payable;

          (f) If any of the  Company or its  Subsidiaries  shall  default in the
     observance or performance of any term or provision of an agreement to which
     it is a party or by which it is bound  which  default  will have a material
     adverse effect on the Company and its  Subsidiaries,  taken as a whole, and
     such default is not waived or cured within the applicable grace period;

          (g) If a final  judgment  which,  either alone or together  with other
     outstanding  final  judgments  against the  Company  and its  Subsidiaries,
     exceeds an aggregate of $250,000  shall be rendered  against the Company or
     any  Subsidiary  and such judgment  shall have  continued  undischarged  or
     unstayed for thirty-five (35) days after entry thereof;

          (h) If the Company or any Subsidiary  shall make an assignment for the
     benefit of  creditors,  or shall admit in writing its  inability to pay its
     debts;  or if the  Company or any  Subsidiary  shall  suffer a receiver  or
     trustee for it or substantially all of its assets to be appointed,  and, if
     appointed without its consent, not to be discharged or stayed within ninety
     (90) days;  or if the Company or any  Subsidiary  shall suffer  proceedings
     under any law relating to bankruptcy,  insolvency or the  reorganization or
     relief of debtors to be  instituted  by or against it, and, if contested by
     it, not to be  dismissed  or stayed  within  ninety  (90)  days;  or if the
     Company or any Subsidiary  shall suffer any writ of attachment or execution
     or any similar process to be issued or levied against it or any significant
     part of its  property  which is not  released,  stayed,  bonded or  vacated
     within  ninety (90) days after its issue or levy;  or if the Company or any
     Subsidiary  takes  corporate  action in furtherance of any of the aforesaid
     purposes or conditions;

          (i) Prior to July 1, 1998,  the directors or the  shareholders  of the
     Company do not approve an amendment to the Certificate of  Incorporation of
     the Company to (a) increase the number of authorized shares of Common Stock
     from  20,000,000  to  [40,000,000]  and (b) give the holders of  Debentures
     voting rights as set forth in Section 9.14 of this Agreement; or

          (j) If three  designees of the Purchasers are not elected as directors
     of the Company prior to July 1, 1998.

     12.2. Remedies.

     (a) Upon the occurrence of an Event of Default,  any Holder or Holders of a
majority in aggregate principal amount of the Debentures at the time outstanding
may at any time (unless all defaults  shall  theretofore  have been remedied) at
its or their option, by written notice


                                       42



or notices to the Company (i) declare all the  Debentures to be due and payable,
whereupon the same shall forthwith  mature and become due and payable,  together
with interest accrued thereon,  without presentment,  demand, protest or notice,
all of which are hereby  waived;  and (ii) declare any other amounts  payable to
the Purchasers under this Agreement or as contemplated hereby due and payable.

     (b)  Notwithstanding  anything  contained in Section 12.2(a),  in the event
that at any time after the principal of the  Debentures  shall so become due and
payable and prior to the date of maturity  stated in the  Debentures all arrears
of  principal  of and  interest  on the  Debentures  (with  interest at the rate
specified in the Debentures on any overdue  principal and, to the extent legally
enforceable, on any interest overdue) shall be paid by or for the account of the
Company,  then the  holder  or  holders  of at  least a  majority  in  aggregate
principal  amount of the  Debentures  then  outstanding,  by  written  notice or
notices to the Company,  may (but shall not be obligated to) waive such Event of
Default and its consequences and rescind or annul such declaration,  but no such
waiver shall extend to or affect any  subsequent  Event of Default or impair any
right resulting  therefrom.  If any holder of a Debentures shall give any notice
or take any other  action  with  respect  to a  claimed  default,  the  Company,
forthwith  upon  receipt of such  notice or  obtaining  knowledge  of such other
action will give written  notice  thereof to all other holders of the Debentures
then  outstanding,  describing such notice or other action and the nature of the
claimed default.

     12.3.  Enforcement.  In case any one or more Events of Default  shall occur
and be  continuing,  the Holder of a Debenture then  outstanding  may proceed to
protect  and  enforce  the  rights of such  Holder by an action at law,  suit in
equity or other appropriate proceeding,  whether for the specific performance of
any agreement contained herein or in such Debenture or for an injunction against
a violation of any of the terms hereof or thereof,  or in aid of the exercise of
any power  granted  hereby or thereby or by law. Each Holder agrees that it will
give written notice to the other Holders prior to  instituting  any such action.
In case of a default  in the  payment of any  principal  of or  interest  on any
Debenture,  the Company will pay to the Holder  thereof  such further  amount as
shall be sufficient to cover the cost and the expenses of collection, including,
without limitation,  reasonable attorney's fees, expenses and disbursements.  No
course of  dealing  and no delay on the part of any Holder of any  Debenture  in
exercising any rights shall operate as a waiver  thereof or otherwise  prejudice
such Holder's  rights.  No right  conferred  hereby or by any Debenture upon any
Holder  thereof  shall be  exclusive  of any other  right  referred to herein or
therein or now available at law in equity, by statute or otherwise.


                                  ARTICLE XIII

                              AMENDMENT AND WAIVER

     This  Agreement  may  not be  amended,  discharged  or  terminated  (or any
provision  hereof  waived)  without the  written  consent of the Company and the
Purchasers. Provided that such written consent of the Company and the Purchasers
is given:

     (a) Holders of at least a majority  in  aggregate  principal  amount of the
Debentures then outstanding may by written instrument amend or waive any term or
condition


                                       43



of  this  Agreement  relating  to  the  rights  or  obligations  of  Holders  of
Debentures,  which amendment or waiver operates for the benefit of such Holders,
except that no such  amendment or waiver shall (i) change the fixed  maturity of
any  Debentures,  the  rate or the time of  mandatory  prepayment  of  principal
thereof or payment of interest  thereon,  the principal amount thereof,  without
the  consent  of the  holder of the  Debentures  so  affected,  (ii)  change the
aforesaid percentage of Debentures, the Holders of which are required to consent
to any such  amendment or waiver,  without the consent of the holders of all the
Debentures then  outstanding or (iii) change the percentage of the amount of the
Debentures,  the  Holders  of which may  declare  the  Debentures  to be due and
payable under Article 12.

     The Company and each Holder of a Debenture  then or thereafter  outstanding
shall be bound by any  amendment  or  waiver  effected  in  accordance  with the
provisions  of this Article 13,  whether or not such  Debenture  shall have been
marked to indicate such modification,  but any Debenture issued thereafter shall
bear a  notation  as to any such  modification.  Promptly  after  obtaining  the
written  consent of the holders  herein  provided,  the Company shall transmit a
copy  of  such  modification  to all  of the  holders  of  the  Debentures  then
outstanding.

     (b) Holders of at least a majority of the Shares  then  outstanding  may by
written  instrument  amend or  waive  any term or  condition  of this  Agreement
relating to the rights or obligations of holders of Shares,  which  amendment or
waiver  operates  for the  benefit  of such  holders  but in no event  shall the
obligation  of any holder of Shares  hereunder  be  increased,  except  upon the
written consent of such holder of Shares.

     The Company and each holder of a Share then or thereafter outstanding shall
be bound by any amendment or waiver  effected in accordance  with the provisions
of this Article 13, whether or not such Share shall have been marked to indicate
such  modification,  but any Share issued thereafter shall bear a notation as to
any such  modification.  Promptly  after  obtaining  the written  consent of the
holders herein provided,  the Company shall transmit a copy of such modification
to all of the holders of the Shares then outstanding.

                                   ARTICLE XIV

                     EXCHANGE AND REPLACEMENT OF DEBENTURES

     14.1.  Subject to Section 15.2, at any time at the request of any Holder of
one or more of the  Debentures  to the  Company  at its  office  provided  under
Section  9.9,  the Company at its expense  (except for any  transfer  tax or any
other tax  arising out of the  exchange)  will issue in  exchange  therefor  new
Debentures,  in such  denomination  or  denominations  ($100,000  or any  larger
multiple of $100,000, plus one Debenture in a lesser denomination,  if required)
as such Holder may request,  in aggregate  principal  amount equal to the unpaid
principal amount of the Debenture or Debentures surrendered and substantially in
the form  thereof,  dated as of the date to which  interest has been paid on the
Debenture  or  Debentures  surrendered  (or, if no interest has yet been so paid
thereon,  then dated the date of the Debenture or Debentures so surrendered) and
payable to such person or persons or order as may be designated by such Holder.

     14.2.  Upon  receipt of evidence  satisfactory  to the Company of the loss,
theft,  destruction  or mutilation of any Debenture and, in the case of any such
loss, theft, or destruction,


                                       44



upon delivery of a bond of indemnity  satisfactory to the Company (provided that
if the holder is a Purchaser or a financial institution,  its own agreement will
be  satisfactory),  or in the case of any such  mutilation,  upon  surrender and
cancellation of such  Debenture,  the Company will issue a new Debenture of like
tenor as if the  lost,  stolen,  destroyed  or  mutilated  Debenture  were  then
surrendered  for exchange in lieu of such lost,  stolen,  destroyed or mutilated
Debenture.

                                   ARTICLE XV

                      TRANSFER OF AND PAYMENT OF DEBENTURES

     15.1. Notification of Proposed Sale.

     (a) Subject to Section  15.1(b),  each holder of a Debenture by  acceptance
thereof  agrees that it will give the Company ten (10) days written notice prior
to selling  or  otherwise  disposing  of such  Debenture.  No such sale or other
disposition  shall be made  unless (i) the holder  shall  have  supplied  to the
Company  an  opinion of counsel  for the  holder  reasonably  acceptable  to the
Company to the effect that no registration  under the Securities Act is required
withrespect  to  such  sale  or  other  disposition,   or  (ii)  an  appropriate
registration statement with respect to such sale or other disposition shall have
been filed by the Company and declared effective by the Commission.

     (b) If the  Holder of a  Debenture  has  obtained  an  opinion  of  counsel
reasonably  acceptable  to the  Company  to the  effect  that  the  sale  of its
Debenture may be made without  registration under the Securities Act pursuant to
compliance  with Rule 144 (or any successor rule under the Securities  Act), the
holder need not provide the Company with the notice required in Section 15.1(a).

     15.2. Payment. So long as a Purchaser shall be the holder of any Debenture,
the Company will make  payments of principal  and interest to such  Purchaser no
later than 11 a.m.  Eastern Time on the date when such payment is due.  Payments
shall  be made  by  delivery  to such  Purchaser  at  such  Purchaser's  address
furnished  to the Company in  accordance  with this  Agreement of a certified or
official  bank check drawn upon or issued by a bank which is a member of the New
York  Clearinghouse  for banks or by wire transfer to such  Purchaser's (or such
Purchaser's nominee's) account at any bank or trust company in the United States
of America.  Each Purchaser  further agrees that, before a Debenture is assigned
or transferred,  such Purchaser will make or cause to be made a notation thereon
of principal payments  previously made thereof and of the date to which interest
thereon has been paid and will notify the Company of the name and address of the
transferee  of  such  Debenture  if such  name  and  address  are  known  to the
Purchaser.


                                       45



                                   ARTICLE XVI

                  RIGHT OF FIRST REFUSAL; ADDITIONAL INVESTMENT

     16.1  Right of First  Refusal.  Each  Holder of the  Debentures,  Holder of
Shares (provided any Debentures remain  outstanding and the Shares received upon
conversion have not been sold, transferred or otherwise disposed of)(the "Common
Holder")  and Old  Holders  shall be entitled  to the  following  right of first
refusal:

          (a)  Except  in  the  case  of  Excluded  Securities  (as  hereinafter
     defined),  the Company shall not issue,  sell or exchange,  agree to issue,
     sell or exchange,  or reserve or set aside for  issuance,  sale or exchange
     (i) any  shares of Common  Stock,  (ii) any other  equity  security  of the
     Company,  (iii)  any debt  security  of the  Company  which by its terms is
     convertible into or exchangeable  for, with or without  consideration,  any
     equity security of the Company,  (iv) any security of the Company that is a
     combination of debt and equity or (v) any option, warrant or other right to
     subscribe  for,  purchase or otherwise  acquire any equity  security or any
     such debt security of the Company (collectively,  the "Equity Securities"),
     unless in each case,  the Company  shall have first  offered to sell to the
     Holders of Debentures,  the Common Holders and the Old Holders,  the Equity
     Securities, at a price and on such other terms as shall have been specified
     by the Company in writing  delivered to each of the Holders of  Debentures,
     the Common  Holders and the Old Holders (the  "Offer"),  which Offer by its
     terms shall  remain open and  irrevocable  for a period of thirty (30) days
     from the date it is delivered by the Company to the Holders of  Debentures,
     the  Common  Holders  and the Old  Holders;  provided,  however,  that such
     issuance,  sale or  exchange  of equity  securities  shall  result in gross
     proceeds  to  the  Company  (whether  at  the  time  of  issuance  or  upon
     conversion,  exercise,  or  exchange  thereof)  of an  amount  in excess of
     $200,000 (the "Minimum Offering Threshold").  For purposes of computing the
     Minimum Offering  Threshold,  any offering,  issuance,  sale or exchange of
     Equity Securities during any rolling 12-month period shall be aggregated.

          (b) Each of the Holders of Debentures,  the Common  Holders  (provided
     the Debentures  remain  outstanding and the Shares received upon conversion
     has not  been  sold,  transferred  or  otherwise  disposed  of) and the Old
     Holders  shall have the right to  purchase  up to its pro rata share of the
     Equity  Securities.  The "pro  rata  share" of each  Holder of  Debentures,
     Common Holder and Old Holder shall be that amount of the Equity  Securities
     multiplied  by a  fraction,  the  numerator  of  which is the sum of (i) of
     Shares  underlying  the Debenture held by such person if such person is the
     Holder of a Debenture,  (ii) the number of Shares of Common Stock issued to
     such Common  Holder  upon  conversion  of a  Debenture  if such person is a
     Common Holder and (iii) the number of shares of Common Stock underlying the
     Prior  Debenture  held by such person if such person is an Old Holder,  and
     the  denominator  of which is the sum of (x) the total  number of shares of
     Common Stock  underlying the Debentures  issued  pursuant to this Agreement
     and (y) the total  number of shares of Common  Stock  into  which the Prior
     Debentures are convertible on the date of this Agreement.

          (c) Notice of the  intention  of each  Holder of a  Debenture,  Common
     Holder or Old  Holder to  accept,  in whole or in part,  an offer  shall be
     evidenced  by a writing  signed  by such  person,  as the case may be,  and
     delivered to the Company prior to the end of the 30-day  period  commencing
     with the date of such Offer (or, if later, within 10 days after the


                                       46



     giving of any written notice of a material  change in such Offer),  setting
     forth such portion  (specifying  number of shares,  principal amount or the
     like) of the Equity  Securities  as such  person  elects to  purchase  (the
     "Notice of Acceptance").

          (d) In the event that all of the Holders of Debentures, Common Holders
     and Old Holders do not elect to purchase all of the Equity Securities,  the
     persons  which have  provided  notice of their  intention  to exercise  the
     refusal rights as provided in  subparagraph  (c) above shall have the right
     to purchase,  on a pro rata basis, any  unsubscribed  portion of the Equity
     Securities  during a period of 10 days following the 30-day period provided
     in subparagraph (c) above.  Following such additional 10-day period, in the
     event the Holders of the Debentures, the Common Holders and the Old Holders
     have not  elected to  purchase  all of the Equity  Securities,  the Company
     shall have 90 days from the  expiration of the  foregoing  40-day period to
     sell  all or any part of such  Equity  Securities  as to which a Notice  of
     Acceptance  has  not  been  given  by any of  such  persons  (the  "Refused
     Securities")  to any  other  person  or  persons,  but only  upon  termsand
     conditions in all material  respects,  including without  limitation,  unit
     price and interest rates (but excluding payment of legal fees of counsel of
     the  purchaser),  which are no more  favorable,  in the aggregate,  to such
     other  person or persons or less  favorable  to the Company  than those set
     forth in the Offer.  Upon the  closing of the sale to such other  person or
     persons of all the Refused  Securities,  which shall include payment of the
     purchase price to the Company in accordance with the terms of the Offer, if
     the Holders of  Debentures,  the Common  Holders  and/or Old  Holders  have
     timely submitted a Notice of Acceptance, it and/or they shall purchase from
     the Company,  and the Company shall sell to such  persons,  as the case may
     be, the Equity  Securities in respect of which a Notice of  Acceptance  was
     delivered to the Company, at the terms specified in the Offer. The purchase
     by the Holders,  Common Holders and/or Old Holders of any Equity Securities
     is subject in all cases to the  preparation,  execution and delivery by the
     Company  such  persons  of  a  purchase   agreement  and  other   customary
     documentation relating to such Equity Securities as is satisfactory in form
     and substance to such persons and each of their respective counsel.

          (e) In each case,  any Equity  Securities not purchased by the Holders
     of  Debentures,  the  Common  Holders,  the Old  Holders  or by a person or
     persons  in  accordance  with  Section  16.1(d)  hereof  may not be sold or
     otherwise  disposed of until they are again  offered to such persons  under
     the procedures specified in Section 16.1(a), (c) and (d) hereof.

          (f) The rights of the Holders of  Debentures,  the Common  Holders and
     the Old Holders  under this Section  16.1 shall not apply to the  following
     securities (the "Excluded Securities"):

               (i)  Common Stock or options to purchase such Common Sock, issued
                    to officers,  employees or directors of, or consultants  to,
                    the Company,  pursuant to any agreement, plan or arrangement
                    approved by the Board of Directors of the Company;


                                       47



               (ii) Common  Stock  issued as a stock  dividend or upon any stock
                    split or other  subdivision  or  combination  of  shares  of
                    Common Stock;

              (iii) Common Stock issued upon  conversion  of the  Debentures  or
                    exercise of the Warrants; and

               (iv) any  securities  issued  for  consideration  other than cash
                    pursuant to a merger, consolidation,  acquisition or similar
                    business combination.

          (g)  Notwithstanding  anything to the  contrary  contained  herein,  a
     Holder of a Debenture or a Common Holder (other than an initial  Purchaser)
     shall not be  considered  as such for  purposes of this  Section 16.1 only,
     unless such  person then holds  Debentures  with an  outstanding  principal
     amount of at least  $200,000 or Shares  issued upon  conversion of at least
     $200,000 in principal of  Debentures or a  combination  of  Debentures  and
     Shares such that the  outstanding  principal of the Debentures held by such
     person plus the amount of principal  of  Debentures  converted  into Shares
     held by such person equals or exceeds $200,000.

     16.2  Additional  Investment.  Notwithstanding  anything  to  the  contrary
contained in Section 16.1,  prior to the  expiration of 18 months after the date
of this  Agreement,  the  Purchasers  (on a pro rata  basis) only shall have the
right to purchase additional  Securities on the same terms and conditions as set
forth herein for an aggregate purchase price of $5,000,000. Purchasers holding a
majority in principal  amount of the  outstanding  Debentures  may elect to make
such purchase by giving written notice of such election to the Company.  The Old
Holders shall not have any right to  participate  in such purchase of additional
Securities unless (and then only to the extent that) they are Purchasers.

                                  ARTICLE XVII

                                  MISCELLANEOUS

     17.1. Governing Law. This Agreement and the rights of the parties hereunder
shall be governed in all  respects by the laws of the State of New York  wherein
the terms of this Agreement were negotiated.

     17.2.   Survival.    Except   as   specifically    provided   herein,   the
representations,  warranties, covenants and agreements made herein shall survive
(a) any investigation made by the Purchasers and (b) the Closing.

     17.3.  Successors  and  Assigns.  Except as  otherwise  expressly  provided
herein, the provisions hereof shall inure to the benefit of, and be binding upon
and enforceable by and against, the successors,  assigns,  heirs,  executors and
administrators of the parties hereto;  provided,  however,  that the Company may
not assign its rights hereunder.

     17.4. Entire Agreement.  This Agreement (including the Exhibits hereto) and
the other  documents  delivered  pursuant  hereto  and  simultaneously  herewith
constitute the full and


                                       48



entire  understanding  and  agreement  between  the  parties  with regard to the
subject matter hereof and thereof.

     17.5.  Notices,  etc. All notices,  demands or other  communications  given
hereunder  shall be in  writing  and shall be  sufficiently  given if  delivered
either personally or by a nationally  recognized courier service marked for next
business day delivery or sent in a sealed envelope by first class mail,  postage
prepaid and either registered or certified, addressed as follows:

               (a)  if to the Company:

                    Halsey  Drug  Co.,  Inc.  
                    1827  Pacific  Street  
                    Brooklyn,  New York  11233
                    Attention: Mr. Michael Reicher 
                    Chief Executive Officer

               (b)  if to a  Purchaser,  to the  address  set forth on Exhibit A
                    attached hereto:

or to such other address with respect to any party hereto as such party may from
time to time  notify (as  provided  above) the other  parties  hereto.  Any such
notice,  demand or  communication  shall be deemed to have been given (i) on the
date  of  delivery,  if  delivered  personally,  (ii) on the  date of  facsimile
transmission,  receipt  confirmed,  (iii) one business  day after  delivery to a
nationally recognized overnight courier service, if marked for next day delivery
or (iv) five business days after the date of mailing,  if mailed.  Copies of any
notice, demand or communication given to (x) the Company,  shall be delivered to
St. John & Wayne,  L.L.C.,  Two Penn Plaza East,  Newark,  New Jersey 07105-2249
Attn.:  John P. Reilly,  Esq.,  or such other address as may be directed and (y)
any Purchaser,  shall be delivered to Wolf,  Block,  Schorr and Solis-Cohen LLP,
250 Park Avenue,  New York, New York, 10177,  Attn.:  George Abrahams,  Esq., or
such other address as may be directed.

     17.6.  Delays or  Omissions.  No delay or omission  to exercise  any right,
power or remedy  accruing  to any  holder of any  Securities  upon any breach or
default of the Company under this Agreement  shall impair any such right,  power
or remedy of such  holder nor shall it be  construed  to be a waiver of any such
breach or default, or an acquiescence,therein, or of or in any similar breach or
default  thereafter  occurring;  nor shall any  waiver of any  single  breach or
default  be deemed a waiver  of any  other  breach  or  default  theretofore  or
thereafter  occurring.  Any waiver,  permit,  consent or approval of any kind or
character  on the  part of any  holder  of any  breach  or  default  under  this
Agreement,  or any  waiver  on the  part  of any  holder  of any  provisions  or
conditions  of this  Agreement  must be, made in writing and shall be  effective
only to the extent specifically set forth in such writing. All remedies,  either
under this  Agreement  or by law or otherwise  afforded to any holder,  shall be
cumulative and not alternative.

     17.7.  Rights;  Severability.  Unless otherwise  expressly provided herein,
each Purchaser's  rights  hereunder are several rights,  not rights jointly held
with any other person. In case any provision of this Agreement shall be invalid,
illegal or unenforceable, the validity,


                                       49



legality and enforceability of the remaining  provisions shall not in any way be
affected or impaired thereby.

     17.8. Agent's Fees.

     (a) The Company  hereby (i)  represents  and  warrants  that except for HKS
Company,  Inc. which is being  compensated in full by the issuance of Securities
as set forth in Exhibit A, the  Company  has not  retained a finder or broker in
connection with the transactions  contemplated by this Agreement and (ii) agrees
to indemnify and to hold the  Purchasers  harmless of and from any liability for
commission or compensation in the nature of an agent's fee to any broker, person
or firm,  and the costs and  expenses of  defending  against  such  liability or
asserted liability,  including, without limitation,  reasonable attorney's fees,
arising  from  any  act by the  Company  or any of the  Company's  employees  or
representatives;  provided,  however,  that the  Company  will have the right to
defend against such liability by  representative(s)  of its own choosing,  which
representative(s)  shall be approved  by the Holders of a majority in  aggregate
principal  amount of the  Debentures and the Holders of a majority of the Shares
(which  approval shall not be unreasonably  withheld or delayed),  and provided,
further,  that the Company  will not settle or  compromise  any claim or lawsuit
without  prior  written  notice to the  Purchasers  of the terms and  provisions
thereof.  In the event that the  Company  shall fail to  undertake  the  defense
within ten (10) days of any notice of such claim,  the Purchasers shall have the
right to undertake  the defense,  compromise  or  settlement  of such claim upon
written  notice to the Company by holders of a majority in  principal  amount of
the  Debentures and the holders of a majority of the Shares and the Company will
be  responsible  for and  shall pay all costs and  expenses  of  defending  such
liability or asserted liability and any amounts paid in settlement.

     (b) Each  Purchaser  (i)  severally  represents  and  warrants  that it has
retained no finder or broker in connection with the transactions contemplated by
this  Agreement  and (ii) hereby  severally  agrees to indemnify and to hold the
Company  harmless from any liability for any commission or  compensation  in the
nature of an agent's or finder's  fee to any broker or other person or firm (and
the costs,  including  reasonable legal fees, and expenses of defending  against
such liability or asserted  liability) for which such  Purchaser,  or any of its
employees or representatives, are responsible.

     17.9.  Expenses.  The Company  shall bear its own  expenses  and legal fees
incurred  on  its  behalf  with  respect  to  the  negotiation,   execution  and
consummation of the transactions contemplated by this Agreement, and the Company
will reimburse the Purchasers for all of the reasonable expenses incurred by the
Purchasers and their affiliates with respect to the  negotiation,  execution and
consummation  of  the  transactions  contemplated  by  this  Agreement  and  the
transactions  contemplated  hereby and due  diligence  conducted  in  connection
therewith,  including the fees and disbursements of counsel and auditors for the
Purchasers;  provided,  however, that the amount of such reimbursement shall not
exceed $100,000. Such reimbursement shall be paid on the Closing Date.

     17.10.  Litigation.  The  parties  each  hereby  waive trial by jury in any
action or  proceeding  of any kind or nature in any court in which an action may
be  commenced  arising out of this  Agreement or by reason of any other cause or
dispute  whatsoever  between them.  The parties  hereto agree that the State and
Federal Courts which sit in the State of New York and the


                                       50



County of New York shall have exclusive  jurisdiction  to hear and determine any
claims or disputes between the Company and such holders,  pertaining directly or
indirectly to this  Agreement or to any matter  arising  therefrom.  The parties
each expressly submit and consent in advance to such  jurisdiction in any action
or proceeding  commenced in such courts  provided that such consent shall not be
deemed to be a waiver of personal service of the summons and complaint, or other
process or papers issued therein.  The choice of forum set forth in this Section
17.10 shall not be deemed to preclude the  enforcement of any judgment  obtained
in such forum or the taking of any action  under this  Agreement to enforce same
in any appropriate jurisdiction. The parties each waive any objection based upon
forum  non  conveniens  and any  objection  to  venue of any  action  instituted
hereunder.

     17.11.  Titles and  Subtitles.  The titles of the  articles,  sections  and
subsections of this Agreement are for  convenience of reference only and are not
to be considered in construing this Agreement.

     17.12.  Counterparts.  This  Agreement  may be  executed  in any  number of
counterparts,  each of which  shall be an  original,  but all of which  together
shall constitute one instrument.

     If the Purchaser is in agreement  with the  foregoing  the Purchaser  shall
sign where  indicated  below and  thereupon  this letter  shall become a binding
agreement between such Purchaser and the Company.

                                     Very truly yours,

                                     HALSEY DRUG CO., INC.


                                     By: 
                                        --------------------------------
                                     Michael Reicher 
                                     Chief Executive Officer


AGREED:

GALEN PARTNERS III, L.P.

By: Claudius, L.L.C., General Partner


By: 
   -----------------------------
   Name:  Bruce F. Wesson 
   Title: Managing Member


                                       51



GALEN PARTNERS INTERNATIONAL III, L.P.

By: Claudius, L.L.C., General Partner


By: 
   -----------------------------
   Name:  Bruce F. Wesson 
   Title: Managing Member



GALEN EMPLOYEE FUND III, L.P.

By: Wesson Enterprises, Inc.


By: 
   -----------------------------
   Name:  Bruce F. Wesson 
   Title: Managing Member



[ADDITIONAL PURCHASERS]


                                       52


                                    EXHIBIT A

- ------------------------------------------------------------------------------------------------------------------------------- Principal Amount of $1.50 $2.375 Name and Address of Purchaser Debenture Purchased Warrants Warrants Purchase Price - ----------------------------- ------------------- -------- -------- -------------- - ------------------------------------------------------------------------------------------------------------------------------- Galen Partners III, L.P. $15,423,198 1,557,898 1,557,898 $15,423,195 610 Fifth Avenue, 5th Floor New York, New York 10020 - ------------------------------------------------------------------------------------------------------------------------------- Galen Partners International III, L.P. $1,709,167 172,643 172,643 $1,709,167 611 Fifth Avenue, 5th Floor New York, New York 10020 - ------------------------------------------------------------------------------------------------------------------------------- Galen Employee Fund III, L.P. $67,633 6,833 6,833 $67,638 610 Fifth Avenue, 5th Floor New York, New York 10020 - ------------------------------------------------------------------------------------------------------------------------------- Michael Reicher $300,000 30,303 30,303 $300,000 c/o Halsey Drug Co., Inc. 1827 Pacific Street Brooklyn, New York 11233 - ------------------------------------------------------------------------------------------------------------------------------- Peter Clemens $100,000 10,101 10,101 $100,000 c/o Halsey Drug Co., Inc. 1827 Pacific Street Brooklyn, New York 11233 - ------------------------------------------------------------------------------------------------------------------------------- Stefanie Heitmeyer $20,000 2,020 2,020 $20,000 c/o Halsey Drug Co., Inc. 1827 Pacific Street Brooklyn, New York 11233 - ------------------------------------------------------------------------------------------------------------------------------- Dan Hill $10,000 1,010 1,010 $10,000 c/o Halsey Drug Co., Inc. 1827 Pacific Street Brooklyn, New York 11233 - ------------------------------------------------------------------------------------------------------------------------------- Alan Smith $10,000 1,010 1,010 $10,000 c/o Halsey Drug Co., Inc. 1827 Pacific Street Brooklyn, New York 11233 - ------------------------------------------------------------------------------------------------------------------------------- Dennis Adams $1,170,000 118,182 118,182 $1,170,000 120 Kynlyn Road Radnor, Pennsylvania 19087 - ------------------------------------------------------------------------------------------------------------------------------- Patrick Coyne $50,000 5,051 5,051 $50,000 477 Margo Lane Berwyn, Pennsylvania 19312 - ------------------------------------------------------------------------------------------------------------------------------- Michael Weisbrot and Susan Weisbrot $300,000 30,303 30,303 $300,000 1136 Rock Creek Road Gladwyne, Pennsylvania 19035 - ------------------------------------------------------------------------------------------------------------------------------- Greg Wood $100,000 10,101 10,101 $100,000 1263 East Calaveras Street Altadena, California 91001 - -------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------- Principal Amount of $1.50 $2.375 Name and Address of Purchaser Debenture Purchased Warrants Warrants Purchase Price - ----------------------------- ------------------- -------- ------- -------------- - ------------------------------------------------------------------------------------------------------------------------------- Hement K. Shah and Varsha H. Shah $950,000 95,960 95,960 $950,000 29 Christy Drive Warren, New Jersey 07059 - ------------------------------------------------------------------------------------------------------------------------------- Varsha H. Shah as Custodian for $20,000 2,020 2,020 $20,000 Suneet H. Shah 29 Christy Drive Warren, New Jersey 07059 - ------------------------------------------------------------------------------------------------------------------------------- Varsha H. Shah as Custodian for $20,000 2,020 2,020 $20,000 Sachin H. Shah 29 Christy Drive Warren, New Jersey 07059 - ------------------------------------------------------------------------------------------------------------------------------- Bernard Selz $400,000 40,404 40,404 $400,000 121 East 73rd Street New York, New York 10021 - ------------------------------------------------------------------------------------------------------------------------------- Ilene Rainisch $25,000 2,525 2,525 $25,000 315 Devon Place Morganville, New Jersey 07751 - ------------------------------------------------------------------------------------------------------------------------------- Michael Rainisch $25,000 2,525 2,525 $25,000 48 Radford Street Staten Island, New York 10314 - ------------------------------------------------------------------------------------------------------------------------------- Ken Gimbel $100,000 10,101 10,101 $100,000 876 Kimball Road Highland Park, Illinois 60035 - -------------------------------------------------------------------------------------------------------------------------------


                                    EXHIBIT 3




THIS  CONVERTIBLE  SENIOR  SECURED  DEBENTURE AND THE COMMON STOCK ISSUABLE UPON
CONVERSION  HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT") NOR UNDER ANY STATE  SECURITIES  LAW AND MAY NOT BE PLEDGED,
SOLD, ASSIGNED,  HYPOTHECATED OR OTHERWISE  TRANSFERRED UNTIL (1) A REGISTRATION
STATEMENT  WITH RESPECT  THERETO IS EFFECTIVE  UNDER THE ACT AND ANY  APPLICABLE
STATE  SECURITIES  LAW OR (2) THE COMPANY  RECEIVES AN OPINION OF COUNSEL TO THE
COMPANY OR OTHER COUNSEL TO THE HOLDER OF SUCH DEBENTURE REASONABLY SATISFACTORY
TO THE COMPANY THAT SUCH  DEBENTURE  AND/OR  COMMON STOCK MAY BE PLEDGED,  SOLD,
ASSIGNED,   HYPOTHECATED  OR  TRANSFERRED  WITHOUT  AN  EFFECTIVE   REGISTRATION
STATEMENT UNDER THE ACT OR APPLICABLE STATE SECURITIES LAWS.

                              HALSEY DRUG CO., INC.
                     5% Convertible Senior Secured Debenture
                               Due March 15, 2003


$                                                                       No. N-1 
- ------------------ 
March 10, 1998



     HALSEY DRUG CO., INC., a corporation  organized under the laws of the State
of New York (the  "Company"),  for value  received,  hereby  promises  to pay to
___________________  or  registered  assigns (the "Payee" or "Holder")  upon due
presentation  and surrender of this Debenture,  on March 15, 2003 (the "Maturity
Date"),  the principal  amount of Dollars ($ ) and accrued  interest  thereon as
hereinafter provided.

     This  Debenture was issued by the Company  pursuant to a certain  Debenture
and  Warrant  Purchase  Agreement  dated the date  hereof  among the Company and
certain  persons,  including the Payee (together with the Schedules and Exhibits
thereto,  the  "Purchase  Agreement")  relating to the  purchase  and sale of 5%
Convertible Senior Secured Debentures maturing March 15, 2003 (the "Debentures")
in the  aggregate  principal  amount  of  $20,800,000.00.  The  holders  of such
Debentures  are referred to  hereinafter as the "Holders." The Payee is entitled
to the  benefits of the  Purchase  Agreement.  Reference is made to the Purchase
Agreement  with  respect  to  certain   additional  rights  of  the  Holder  and
obligations of the Company not set forth herein.






                                    ARTICLE I

              PAYMENT OF PRINCIPAL AND INTEREST; METHOD OF PAYMENT

     1.1 Payment of the principal and accrued  interest on this Debenture  shall
be made in such coin or currency of the United  States of America as at the time
of payment  shall  belegal  tender for the payment of public and private  debts.
Interest  (computed on the basis of a 360-day year of twelve  30-day  months) on
the unpaid portion of said principal amount from time to time outstanding  shall
be paid by the Company at the rate of five  percent  (5%) per annum (the "Stated
Interest  Rate"),  in like coin and currency,  payable to the Payee in three (3)
month intervals on each January 1, April 1, July 1 and October 1 during the term
of this Debenture (commencing April 1, 1998) (an "Interest Payment Date") and on
the Maturity Date. Both principal hereof and interest thereon are payable at the
Holder's  address above or such other address as the Holder shall designate from
time to time by written notice to the Company.  The Company will pay or cause to
be paid all sums becoming due hereon for principal and interest by check sent to
the Holder's  above address or to such other address as the Holder may designate
for such purpose from time to time by written notice to the Company, without any
requirement  for the  presentation  of this  Debenture  or making  any  notation
thereon,  except that the Holder  hereof agrees that payment of the final amount
due shall be made only upon  surrender  of this  Debenture  to the  Company  for
cancellation.  Prior to any sale or other  disposition of this  instrument,  the
Holder hereof agrees to endorse  hereon the amount of principal  paid hereon and
the last date to which  interest  has been paid hereon and to notify the Company
of the name and address of the transferee.

     1.2 In the event any payment of  principal or interest or both shall remain
unpaid for a period of ten (10) days or more, a late charge  equivalent  to five
(5%) percent of each installment shall be charged.  Interest on the indebtedness
evidenced by this Debenture  after default or maturity  accelerated or otherwise
shall be due and payable at the rate of seven (7%) percent per annum, subject to
the limitations of applicable law.

     1.3 If this Debenture or any installment  hereof becomes due and payable on
a Saturday,  Sunday or public  holiday  under the laws of the State of New York,
the due date hereof shall be extended to the next  succeeding  full business day
and interest  shall be payable at the rate of five (5%) percent per annum during
such  extension.  All payments  received by the Holder shall be applied first to
the payment of all accrued interest payable hereunder.

                                   ARTICLE II

                                    SECURITY

     2.1 The  obligations  of the  Company  under  this  Debenture  are  secured
pursuant  to  security  interests  on and  collateral  assignments  of,  assets,
tangible  and  intangible,  of the  Company  granted by the Company to the Payee
pursuant  to  a  security   agreement  of  even  date  herewith  and  collateral
assignments referred to in the Purchase Agreement.  In addition,  each of Houba,
Inc. ("Houba"), Halsey Pharmaceuticals, Inc., Indiana Fine Chemicals Corporation
and Cenci Powder Products,  Inc. ("CPP"), each a wholly-owned  subsidiary of the
Company, and H.R. Cenci Laboratories,  Inc. ("HR Cenci"), a 97% owned subsidiary
of the Company


                                       2



(collectively,  the Guarantors"),  has executed in favor of the Holder a certain
Continuing Unconditional Guaranty, dated of even date, guaranteeing the full and
unconditional  payment  when due of the  amounts  payable by the  Company to the
Holder  pursuant  to the  terms of this  Debenture  (each the  "Guaranty").  The
obligations  of each  Guarantor  under its  Guaranty  are  secured  pursuant  to
security  interests  on and  collateral  assignments  of,  assets,  tangible and
intangible,  of such Guarantor granted by the Guarantor to the Payee pursuant to
a security agreement of even date herewith and collateral  assignments  referred
to in the Purchase  Agreement.  The  obligations of Houba under its Guaranty are
also secured pursuant to a Mortgage on real property located at 16235 State Road
17,  Culver,  Indiana.  The  obligations of each of CPP and HR Cenci under their
Guaranties are also secured  pursuant to a Mortgage on real property  located at
152 North Broadway, Fresno, California.

                                   ARTICLE III

                                   CONVERSION

     3.1  Conversion  at Option of Holder.  At any time and from time to time on
and after the date hereof (the "Initial  Conversion  Date") until the earlier of
(i) the Maturity Date or (ii) the conversion of the Debenture in accordance with
Section 3.2 hereof,  this  Debenture is  convertible  in whole or in part at the
Holder's  option into shares of Common  Stock of the Company  upon  surrender of
this Debenture, at the office of the Company, accompanied by a written notice of
conversion in form  reasonably  satisfactory to the Company duly executed by the
registered Holder or its duly authorized attorney. "Common Stock" of the Company
means  common  stock of the Company as it exists on the date this  Debenture  is
originally  signed.  This  Debenture  is  convertible  on or after  the  Initial
Conversion Date into shares of Common Stock at a price per share of Common Stock
equal to $1.50 per share (the "Conversion Price").  Interest shall accrue to and
including the day prior to the date of conversion  and shall be paid on the last
day of the  month  in  which  conversion  rights  hereunder  are  exercised.  No
fractional  shares or scrip  representing  fractional shares will be issued upon
any  conversion,  but an  adjustment  in cash will be made,  in  respect  of any
fraction of a share which would otherwise be issuable upon the surrender of this
Debenture  for  conversion.  The  Conversion  Price is subject to  adjustment as
provided in Section 3.5 and Section 3.7 hereof. As soon as practicable following
conversion  and upon the  Holder's  compliance  with  the  conversion  procedure
described in Section 3.3 hereof, the Company shall deliver a certificate for the
number of full shares of Common Stock  issuable upon  conversion and a check for
any fractional share and, in the event the Debenture is converted in part, a new
Debenture in the principal  amount equal to the remaining  principal  balance of
this Debenture after giving effect to such partial conversion.

     3.2 Conversion at Option of the Company.  Provided that an Event of Default
as  provided  in Section  12.1(a) of the  Purchase  Agreement  (relating  to the
failure to pay  principal  and  interest  under the  Debentures)  shall not have
occurred  and then be  continuing,  in the event that either (a)  following  the
second  anniversary  of the date  hereof,  the  closing  price  per share of the
Company's  Common Stock on the American  Stock  Exchange  ("AMEX") or the NASDAQ
National  Market  ("NNM")  exceeds  $4.75  per  share  for each of  twenty  (20)
consecutive  trading days or (b)  following  the third  anniversary  of the date
hereof, the closing price per share of the Company's Common Stock on the AMEX or
NNM exceeds $7.125 per share for each of twenty (20)  consecutive  trading days,
then at any time thereafter until the earlier of (i) the Maturity


                                       3



Date or (ii) the date a Change of Control (as defined in the Purchase Agreement)
occurs,  the Company may upon  written  notice to the Holders of all  Debentures
(the "Mandatory  Conversion Notice") require that all, but not less than all, of
the outstanding  principal  amount of the Debentures be converted into shares of
Common  Stock at a price  per  share  equal  to the  Conversion  Price  (as such
Conversion  Price may be adjusted as provided in Sections  3.5 and 3.7  hereof).
The Mandatory  Conversion  Notice shall state (1) the date fixed for  conversion
(the "Conversion Date") (which date shall not be prior to the date the Mandatory
Conversion  Notice is  given),  (2) any  disclosures  required  by law,  (3) the
trading  dates  and  closing  prices  of the  Common  Stock  giving  rise to the
Company's option to require conversion of the Debenture, (4) that the Debentures
shall  cease  to  accrue  interest  after  the  day  immediately  preceding  the
Conversion  Date, (5) the place where the Debentures  shall be delivered and (6)
any other  instructions  that  Holders  must  follow  in order to  tender  their
Debentures in exchange for  certificates  for Common  Stock.  No failure to mail
such notice nor any defect  therein or in the mailing  thereof  shall affect the
validity of the  proceedings for such  conversion,  except as to a Holder (x) to
whom notice was not mailed or (y) whose  notice was  defective.  An affidavit of
the Secretary or an Assistant  Secretary of the Company or an agent  employed by
the Company that notice of  conversion  has been mailed  postage  prepaid to the
last address of the Holder appearing on the Debenture registry books kept by the
Company  shall,  in the absence of fraud,  be prima facie  evidence of the facts
stated therein. On and after the Conversion Date, except as provided in the next
two sentences,  Holders of the Debentures shall have no further rights except to
receive, upon surrender of the Debentures, a certificate or certificates for the
number  of shares of Common  Stock as to which  the  Debenture  shall  have been
converted.  Interest  shall  accrue  to  and  including  the  day  prior  to the
Conversion  Date  and  shall  be paid on the  last  day of the  month  in  which
Conversion Date occurs.  No fractional shares or scrip  representing  fractional
shares will be issued upon any  conversion,  but an  adjustment  in cash will be
made,  in respect of any  fraction of a share which would  otherwise be issuable
upon the surrender of this Debenture for conversion.

     3.3  Registration  of Transfer;  Conversion  Procedure.  The Company  shall
maintain books for the transfer and  registration  of the  Debentures.  Upon the
transfer of any  Debenture in  accordance  with the  provisions  of the Purchase
Agreement,  the Company  shall issue and register the  Debenture in the names of
the new holders. The Debentures shall be signed manually by the Chairman,  Chief
Executive  Officer,  President  or any  Vice  President  and  the  Secretary  or
Assistant  Secretary of the Company.  The Company  shall  convert,  from time to
time, any outstanding  Debentures upon the books to be maintained by the Company
for such purpose upon surrender thereof for conversion properly endorsed and, in
the case of a  conversion  pursuant  to Section  3.1  hereof,  accompanied  by a
properly completed and executed  Conversion Notice attached hereto as Attachment
II. Subject to the terms of this Debenture, upon surrender of this Debenture the
Company  shall issue and  deliver  with all  reasonable  dispatch to or upon the
written order of the Holder of such  Debenture and in such name or names as such
Holder may  designate,  a  certificate  or  certificates  for the number of full
shares of Common Stock due to such Holder upon the conversion of this Debenture.
Such  certificate  or  certificates  shall be deemed to have been issued and any
person so  designated  to be named  therein  shall be deemed to have  become the
Holder  of  record  of  such  Shares  as of the  date of the  surrender  of this
Debenture;  provided,  however,  that if, at the date of surrender  the transfer
books of the Common Stock shall be closed, the certificates for the Shares shall
be  issuable  as of the date on which such books  shall be opened and until such
date the Company shall be under


                                       4



no duty to deliver any certificate for such Shares; provided,  further, however,
that such transfer books, unless otherwise required by law or by applicable rule
of any national securities  exchange,  shall not be closed at any one time for a
period longer than twenty (20) days.

     3.4 Company to Provide Common Stock. The Company has reserved the remaining
balance of its authorized but unissued and unreserved shares of Common Stock and
its Common Stock held in treasury to permit the  conversion of the Debentures to
the extent of its current  unissued and unreserved  authorized  Common Stock. In
accordance  with the provisions of Section 9.14 of the Purchase  Agreement,  the
Company  covenants  to seek  the  approval  of its  shareholders  to  amend  its
Certificate of Incorporation  to increase its authorized  shares from 20,000,000
to 40,000,000 shares of Common Stock and to provide voting rights to the Holders
on an as converted basis. Promptly upon receipt of shareholder approval to amend
its certificate of incorporation to increase its authorized  shares, the Company
shall  reserve out of its  authorized  but  unissued  common  stock a sufficient
number of shares to permit the  conversion of the Debentures in full. The shares
of Common Stock which may be issued upon the conversion of the Debentures  shall
be fully paid and non-assessable and free of preemptive rights. The Company will
endeavor to comply with all securities laws regulating the offer and delivery of
the Shares upon  conversion  of the  Debentures  and will  endeavor to list such
shares on each  national  securities  exchange  upon which the  Common  Stock is
listed.

     3.5  Dividends;  Reclassifications,  etc..  In the event  that the  Company
shall,  at any time prior to the earlier to occur of (i) exercise of  conversion
rights  hereunder and (ii) the Maturity  Date: (i) declare or pay to the holders
of the Common Stock a dividend payable in any kind of shares of capital stock of
the Company;  or (ii) change or divide or otherwise  reclassify its Common Stock
into the same or a different  number of shares with or without par value,  or in
shares of any class or classes; or (iii) transfer its property as an entirety or
substantially  as an entirety to any other  company or entity;  or (iv) make any
distribution  of its assets to holders of its Common Stock as a  liquidation  or
partial  liquidation  dividend  or by way of return of capital;  then,  upon the
subsequent  exercise of conversion rights, the Holder thereof shall receive,  in
addition to or in substitution  for the shares of Common Stock to which it would
otherwise be entitled upon such  exercise,  such  additional  shares of stock or
scrip of the Company,  or such reclassified  shares of stock of the Company,  or
such  shares  of the  securities  or  property  of the  Company  resulting  from
transfer,  or such assets of the Company,  which it would have been  entitled to
receive had it exercised these  conversion  rights prior to the happening of any
of the foregoing events.

     3.6 Notice to Holder.  If, at any time while this Debenture is outstanding,
the Company  shall pay any dividend  payable in cash or in Common  Stock,  shall
offer to the holders of its Common  Stock for  subscription  or purchase by them
any  shares of stock of any  class or any  other  rights,  shall  enter  into an
agreement to merge or consolidate  with another  corporation,  shall propose any
capital  reorganization or reclassification of the capital stock of the Company,
including any  subdivision or combination  of its  outstanding  shares of Common
Stock or there shall be  contemplated  a voluntary or  involuntary  dissolution,
liquidation or winding up of the Company, the Company shall cause notice thereof
to be mailed to the registered Holder of this Debenture at its address appearing
on the registration books of the Company, at least thirty (30) days prior to the
record date as of which holders of Common Stock shall participate in such


                                       5



dividend,  distribution  or subscription or other rights or at least thirty (30)
days prior to the effective date of the merger,  consolidation,  reorganization,
reclassification or dissolution.

     3.7 Adjustments to Conversion  Price.  In order to prevent  dilution of the
conversion  right granted  hereunder,  the Conversion  Price shall be subject to
adjustment  from time to time in  accordance  with this Section  3.7.  Upon each
adjustment of the  Conversion  Price pursuant to this Section 3.7, the Holder of
this Debenture  shall  thereafter be entitled to acquire upon  conversion  under
Section 3.1 or Section 3.2, at the Applicable  Conversion  Price (as hereinafter
defined),  the number of shares of Common Stock  obtainable by  multiplying  the
Conversion Price in effect immediately prior to such adjustment by the number of
shares of Common  Stock  acquirable  immediately  prior to such  adjustment  and
dividing the product thereof by the Applicable  Conversion  Price resulting from
such adjustment.

     The  Conversion  Price in effect at the time of the exercise of  conversion
rights  hereunder set forth in Section 3.1 shall be subject to  adjustment  from
time to time as follows:

          (a) If at any time after the date of issuance hereof the Company shall
     grant or issue any shares of Common Stock,  or grant or issue any rights or
     options for the purchase of, or stock or other securities convertible into,
     Common  Stock  (such   convertible   stock  or   securities   being  herein
     collectively referred to as "Convertible Securities") other than:

               (i) shares issued in a transaction described in subsection (b) of
          this Section 3.7; or

               (ii)  shares  issued,  subdivided  or  combined  in  transactions
          described  in  Section  3.5 if and to the  extent  that the  number of
          shares of Common Stock  received  upon  conversion  of this  Debenture
          shall have been  previously  adjusted  pursuant  to  Section  3.5 as a
          result  of  such   issuance,   subdivision   or  combination  of  such
          securities;

for a  consideration  per  share  which is less than the Fair  Market  Value (as
hereinafter  defined) of the Common Stock,  then the Conversion  Price in effect
immediately prior to such issuance or sale (the "Applicable  Conversion  Price")
shall,  and thereafter upon each issuance or sale for a consideration  per share
which is less than the Fair Market  Value of the Common  Stock,  the  Applicable
Conversion Price shall,  simultaneously with such issuance or sale, be adjusted,
so that such  Applicable  Conversion  Price  shall equal a price  determined  by
multiplying  the  Applicable  Conversion  Price by a fraction,  the numerator of
which shall be:

     (A) the sum of (x) the total number of shares of Common  Stock  outstanding
     when the Applicable Conversion Price became effective,  plus (y) the number
     of shares of Common Stock which the aggregate  consideration  received,  as
     determined in accordance with subsection 3.7(c) for the issuance or sale of
     such  additional  Common Stock or  Convertible  Securities  deemed to be an
     issuance of Common Stock as provided in subsection  3.7(d),  would purchase
     (including any  consideration  received by the Company upon the issuance of
     any shares of Common Stock since the date the Applicable  Conversion  Price
     became effective not previously included in any computation resulting in an
     adjustment pursuant to


                                       6



     this Section 3.7(a)) at the Fair Market Value of the Common Stock;  and the
     denominator of which shall be

     (B) the total number of shares of Common Stock outstanding (or deemed to be
     outstanding as provided in subsection 3.7(d) hereof)  immediately after the
     issuance or sale of such additional shares.

     For  purposes of this  Section  3.7,  "Fair  Market  Value"  shall mean the
average of the  closing  price of the Common  Stock for each of the twenty  (20)
consecutive  trading  days  prior  to such  issuance  or  sale on the  principal
national  securities  exchange on which the Common Stock is traded, or if shares
of Common  Stock are not listed on a national  securities  exchange  during such
period,  the closing price per share as reported by the National  Association of
Securities Dealers Automatic  Quotation System ("NASDAQ") National Market System
if the shares are quoted on such system  during such  period,  or the average of
the bid and asked prices of the Common Stock in the  over-the-counter  market at
the close of  trading  during  such  period if the  shares  are not traded on an
exchange or listed on the NASDAQ National Market System,  or if the Common Stock
is not  traded on a  national  securities  exchange  or in the  over-the-counter
market,  the fair market  value of a share of Common Stock during such period as
determined in good faith by the Board of Directors.

If, however,  the Applicable  Conversion Price thus obtained would result in the
issuance of a lesser  number of shares upon  conversion  than would be issued at
the initial  Conversion  Price  specified  in Section 3.1, as  appropriate,  the
Applicable Conversion Price shall be such initial Conversion Price.

     Upon each  adjustment of the Conversion  Price pursuant to this  subsection
(a), the total number of shares of Common Stock into which this Debenture  shall
be convertible shall be such number of shares  (calculated to the nearest tenth)
purchasable at the Applicable  Conversion  Price  multiplied by a fraction,  the
numerator of which shall be the Conversion Price in effect  immediately prior to
such  adjustment  and the  denominator  of which shall be the exercise  price in
effect immediately after such adjustment.

          (b) Anything in this Section 3.7 to the contrary  notwithstanding,  no
     adjustment in the Conversion Price shall be made in connection with:

               (i) the grant, issuance or exercise of any Convertible Securities
               pursuant to the  Company's  qualified or  non-qualified  Employee
               Stock Option Plans or any other bona fide  employee  benefit plan
               or incentive  arrangement,  adopted or approved by the  Company's
               Board of Directors and approved by the Company's shareholders, as
               may be  amended  from time to time,  or under any other bona fide
               employee benefit plan hereafter adopted by the Company's Board of
               Directors; or

               (ii)  the  grant,   issuance  or  exercise  of  any   Convertible
               Securities  in  connection  with  the  hire or  retention  of any
               officer,  director or key employee of the Company,  provided such
               grant is approved by the Company's Board of Directors; or


                                       7



               (iii) the issuance of any shares of Common Stock  pursuant to the
               grant or exercise of Convertible Securities outstanding as of the
               date hereof (exclusive of any subsequent amendments thereto).

          (c) For the purpose of subsection  3.7(a),  the  following  provisions
     shall also be applied:

               (i) In case of the  issuance  or sale  of  additional  shares  of
               Common Stock for cash, the consideration  received by the Company
               therefor shall be deemed to be the amount of cash received by the
               Company  for  such  shares,   before   deducting   therefrom  any
               commissions,  compensation  or other expenses paid or incurred by
               the Company for any  underwriting  of, or otherwise in connection
               with, the issuance or sale of such shares.

               (ii) In the case of the issuance of Convertible  Securities,  the
               consideration received by the Company therefor shall be deemed to
               be the amount of cash,  if any,  received  by the Company for the
               issuance of such rights or options,  plus the minimum  amounts of
               cash and fair value of other  consideration,  if any,  payable to
               the  Company  upon the  exercise  of such  rights or  options  or
               payable  to the  Company  upon  conversion  of  such  Convertible
               Securities.

               (iii) In the case of the  issuance  of shares of Common  Stock or
               Convertible  Securities for a consideration  in whole or in part,
               other  than  cash,  the  consideration  other  than cash shall be
               deemed  to  be  the  fair  market  value  thereof  as  reasonably
               determined in good faith by the Board of Directors of the Company
               (irrespective  of  accounting   treatment   thereof);   provided,
               however, that if such consideration  consists of the cancellation
               of debt issued by the Company,  the consideration shall be deemed
               to be the amount the Company  received upon issuance of such debt
               (gross  proceeds)  plus  accrued  interest  and,  in the  case of
               original  issue  discount  or zero coupon  indebtedness,  accrued
               value to the date of such  cancellation,  but not  including  any
               premium  or  discount  at which the debt may then be  trading  or
               which might otherwise be appropriate for such class of debt.

               (iv) In case of the issuance of additional shares of Common Stock
               upon the  conversion or exchange of any  obligations  (other than
               Convertible Securities), the amount of the consideration received
               by the Company  for such  Common  Stock shall be deemed to be the
               consideration  received by the Company  for such  obligations  or
               shares so  converted or  exchanged,  before  deducting  from such
               consideration   so  received  by  the  Company  any  expenses  or
               commissions or  compensation  incurred or paid by the Company for
               any  underwriting  of,  or  otherwise  in  connection  with,  the
               issuance  or  sale  of  such  obligations  or  shares,  plus  any
               consideration  received  by the Company in  connection  with such
               conversion  or  exchange  other than a payment in  adjustment  of
               interest  and  dividends.  If  obligations  or shares of the same
               class  or  series  of a class as the  obligations  or  shares  so
               converted or exchanged have been originally  issued for different
               amounts  of  consideration,  then  the  amount  of  consideration
               received by the Company upon the original issuance of each of the
               obligations or shares so


                                       8



               converted or exchange shall be deemed to be the average amount of
               the  consideration  received  by the  Company  upon the  original
               issuance  of all  such  obligations  or  shares.  The  amount  of
               consideration  received by the Company upon the original issuance
               of the  obligations  or shares so converted or exchanged  and the
               amount of the consideration,  if any, other than such obligations
               or  shares,  received  by the  Company  upon such  conversion  or
               exchange  shall be  determined  in the same manner as provided in
               paragraphs  (i) and (ii) above with respect to the  consideration
               received  by the Company in case of the  issuance  of  additional
               shares of Common Stock or Convertible Securities.

               (v) In the case of the  issuance of  additional  shares of Common
               Stock as a  dividend,  the  aggregate  number of shares of Common
               Stock issued in payment of such dividend  shall be deemed to have
               been issued at the close of business on the record date fixed for
               the  determination of stockholders  entitled to such dividend and
               shall  be  deemed  to have  been  issued  without  consideration;
               provided,  however, that if the Company, after fixing such record
               date,  shall legally abandon its plan to so issue Common Stock as
               a dividend,  no adjustment  of the  Applicable  Conversion  Price
               shall be required by reason of the fixing of such record date.

          (d) For purposes of the adjustment  provided for in subsection  3.7(a)
     above, if at any time the Company shall issue any  Convertible  Securities,
     the Company  shall be deemed to have issued at the time of the  issuance of
     such  Convertible  Securities  the maximum number of shares of Common Stock
     issuable  upon   conversion  of  the  total  amount  of  such   Convertible
     Securities.

          (e) On the  expiration,  cancellation or redemption of any Convertible
     Securities,  the Conversion  Price then in effect hereunder shall forthwith
     be readjusted to such Conversion  Price as would have been obtained (a) had
     the adjustments made upon the issuance or sale of such expired, canceled or
     redeemed Convertible Securities been made upon the basis of the issuance of
     only the number of shares of Common Stock  theretofore  actually  delivered
     upon the exercise or conversion  of such  Convertible  Securities  (and the
     total   consideration   received  therefor)  and  (b)  had  all  subsequent
     adjustments  been  made  on only  the  basis  of the  Conversion  Price  as
     readjusted under this subsection  3.7(e) for all transactions  (which would
     have affected such  adjusted  Conversion  Price) made after the issuance or
     sale of such Convertible Securities.

          (f) Anything in this Section 3.7 to the contrary  notwithstanding,  no
     adjustment in the Conversion Price shall be required unless such adjustment
     would  require an increase  or  decrease of at least 1% in such  Conversion
     Price;  provided,  however,  that any  adjustments  which by reason of this
     subsection  3.7(f) are not required to be made shall be carried forward and
     taken into account in making subsequent adjustments. All calculations under
     this Section 3.7 shall be made to the nearest cent.

          (g) Upon any adjustment of any Conversion Price, then and in each such
     case the Company shall promptly  deliver a notice to the registered  Holder
     of this Debenture,  which notice shall state the Conversion Price resulting
     from such adjustment, setting


                                       9



     forth in  reasonable  detail the method of  calculation  and the facts upon
     which such calculation is based.

     3.8 Reorganization of the Company. If the Company is a party to a merger or
other  transaction which  reclassifies or changes its outstanding  Common Stock,
upon consummation of such transaction this Debenture shall automatically  become
convertible  into the kind and amount of securities,  cash or other assets which
the Holder of this Debenture would have owned immediately after such transaction
if the Holder had converted  this  Debenture at the  Conversion  Price in effect
immediately before the effective date of the transaction.  Concurrently with the
consummation of such  transaction,  the person  obligated to issue securities or
deliver cash or other assets upon conversion of this Debenture shall execute and
deliver  to the  Holder  a  supplemental  Debenture  so  providing  and  further
providing  for  adjustments  which  shall  be as  nearly  equivalent  as  may be
practical to the adjustments  provided in this Article 3. The successor  Company
shall mail to the Holder a notice describing the supplemental Debenture.

     If securities  deliverable  upon conversion of this Debenture,  as provided
above,  are  themselves  convertible  into the  securities  of an affiliate of a
corporation  formed,  surviving  or  otherwise  affected  by the merger or other
transaction, that issuer shall join in the supplemental Debenture which shall so
provide. If this section applies, Section 3.5 does not apply.

                                   ARTICLE IV

                                  MISCELLANEOUS

     4.1  Default.  Upon  the  occurrence  of any one or more of the  events  of
default  specified  or referred  to in the  Purchase  Agreement  or in the other
documents or  instruments  executed in  connection  therewith,  all amounts then
remaining  unpaid on this  Debenture may be declared to be  immediately  due and
payable as provided in the Purchase Agreement.

     4.2 Collection  Costs.  In the event that this Debenture shall be placed in
the hands of an  attorney  for  collection  by  reason  of any event of  default
hereunder,  the  undersigned  agrees  to  pay  reasonable  attorney's  fees  and
disbursements and other reasonable expenses incurred by the Holder in connection
with the collection of this Debenture.

     4.3 Rights Cumulative.  The rights,  powers and remedies given to the Payee
under this  Debenture  shall be in addition to all rights,  powers and  remedies
given to it by virtue of the  Purchase  Agreement,  any  document or  instrument
executed in connection therewith, or any statute or rule of law.

     4.4  No  Waivers.  Any  forbearance,  failure  or  delay  by the  Payee  in
exercising  any  right,  power or remedy  under  this  Debenture,  the  Purchase
Agreement,  any documents or  instruments  executed in  connection  therewith or
otherwise  available  to the  Payee  shall  not be deemed to be a waiver of such
right,  power or remedy,  nor shall any single or partial exercise of any right,
power or remedy preclude the further exercise thereof.

     4.5 Amendments in Writing.  No  modification  or waiver of any provision of
this Debenture,  the Purchase Agreement or any documents or instruments executed
in connection


                                       10



therewith  shall be  effective  unless it shall be in writing  and signed by the
Payee,  and any such  modification  or waiver  shall apply only in the  specific
instance for which given.

     4.6 Governing  Law. This  Debenture and the rights and  obligations  of the
parties hereto,  shall be governed,  construed and interpreted  according to the
laws of the State of New York,  wherein it was negotiated and executed,  and the
undersigned  consents and agrees that the State and Federal  Courts which sit in
the State of New York,  County of New York shall have exclusive  jurisdiction of
all controversies and disputes arising hereunder.

     4.7 No  Counterclaims.  The  undersigned  waives  the  right  to  interpose
counterclaims or set-offs of any kind and description in any litigation  arising
hereunder and waives the right in any litigation  with the Payee (whether or not
arising out of or relating to this Debenture) to trial by jury.

     4.8  Successors.  The term  "Payee" and  "Holder"  as used herein  shall be
deemed to include the Payee and its successors, endorsees and assigns.

     4.9 Certain  Waivers.  The Company  hereby waives  presentment,  demand for
payment, protest, notice of protest and notice of non-payment hereof.

     4.10  Stamp  Tax.  The  Company  will  pay  any  documentary   stamp  taxes
attributable  to the initial  issuance  of the Common  Stock  issuable  upon the
conversion of this Debenture;  provided,  however, that the Company shall not be
required to pay any tax or taxes which may be payable in respect of any transfer
involved in the issuance or delivery of any certificates for the Common Stock in
a name other than that of the  Holder in respect of which such  Common  Stock is
issued,  and in such case the Company  shall not be required to issue or deliver
any  certificate  for the Common Stock until the person  requesting the same has
paid to the Company the amount of such tax or has  established  to the Company's
satisfaction that such tax has been paid.

     4.11  Mutilated,  Lost,  Stolen  or  Destroyed  Debentures.  In  case  this
Debenture shall be mutilated, lost, stolen or destroyed, the Company shall issue
and  deliver in  exchange  and  substitution  for and upon  cancellation  of the
mutilated  Debenture,  or  in  lieu  of  and  substitution  for  the  Debenture,
mutilated,  lost,  stolen  or  destroyed,  a new  Debenture  of like  tenor  and
representing an equivalent right or interest,  but only upon receipt of evidence
satisfactory to the Company of such loss, theft or destruction and an indemnity,
if requested, also satisfactory to it.

     4.12 Maintenance of Office.  The Company  covenants and agrees that so long
as this Debenture shall be outstanding,  it will maintain an office or agency in
New York (or such other  place as the Company  may  designate  in writing to the
holder of this Debenture)  where notices,  presentations  and demands to or upon
the Company in respect of this Debenture may be given or made.

     IN WITNESS  WHEREOF,  Halsey Drug Co., Inc. has caused this Debenture to be
signed by its President and to be dated the day and year first above written.


                                       11



ATTEST [SEAL]                             HALSEY DRUG CO., INC.


                                          By:
- ----------------------------                 ----------------------------
                                          Michael Reicher
                                          Chief Executive Officer



                                       12



                                  ATTACHMENT I

                                   Assignment


     For  value  received,   the  undersigned  hereby  assigns  subject  to  the
provisions of Section of the Purchase Agreement, to ________  $_________________
principal  amount of the 5% Convertible  Senior Secured  Debenture due March 15,
2003 evidenced hereby and hereby irrevocably appoint _______________ attorney to
transfer the  Debenture on the books of the within named  corporation  with full
power of substitution in the premises.

Dated:

In the presence of:


- ----------------------------              ----------------------------





                                       13






                                  ATTACHMENT II

                                CONVERSION NOTICE

                    TO: HALSEY DRUG CO., INC.


     The undersigned holder of this Debenture hereby  irrevocably  exercises the
option to convert  $_________  principal  amount of such Debenture (which may be
less than the stated  principal  amount  thereof) into shares of Common Stock of
Halsey Drug Co.,  Inc.,  in  accordance  with the terms of such  Debenture,  and
directs  that the shares of Common  Stock  issuable  and  deliverable  upon such
conversion,  together with a check (if applicable) in payment for any fractional
shares as provided in such Debenture, be issued and delivered to the undersigned
unless a different name has been indicated  below. If shares of Common Stock are
to be issued in the name of a person other than the  undersigned  holder of such
Debenture,  the  undersigned  will pay all transfer  taxes  payable with respect
thereto.



                       --------------------------------------------------------
                       Name and address of Holder


                       --------------------------------------------------------
                       Signature of Holder


                       Principal amount of Debenture to be converted $
                                                                      ----------




            If shares are to be issued otherwise then to the holder:



- -------------------------------------
Name of Transferee 

                                          Address of Transferee                
                                         
                                          --------------------------------------

                                          --------------------------------------
                                         
                                          --------------------------------------

                                          Social Security Number of Transferee
                                         
                                          --------------------------------------
                                        
                            
                                       14


                                    EXHIBIT 4


                               WARRANT TO PURCHASE
                     COMMON STOCK, PAR VALUE $.01 PER SHARE

                                       OF

                              HALSEY DRUG CO., INC.


THIS WARRANT AND THE COMMON STOCK  ISSUABLE UPON  EXERCISE  HEREOF HAVE NOT BEEN
REGISTERED  UNDER THE  SECURITIES  ACT OF 1933, AS AMENDED (THE "ACT") NOR UNDER
ANY STATE SECURITIES LAW AND MAY NOT BE PLEDGED, SOLD, ASSIGNED, HYPOTHECATED OR
OTHERWISE TRANSFERRED UNTIL (1) A REGISTRATION STATEMENT WITH RESPECT THERETO IS
EFFECTIVE  UNDER  THE ACT AND ANY  APPLICABLE  STATE  SECURITIES  LAW OR (2) THE
COMPANY  RECEIVES AN OPINION OF COUNSEL TO THE  COMPANY OR OTHER  COUNSEL TO THE
HOLDER OF SUCH WARRANT REASONABLY  SATISFACTORY TO THE COMPANY THAT SUCH WARRANT
AND/OR COMMON STOCK MAY BE PLEDGED, SOLD, ASSIGNED,  HYPOTHECATED OR TRANSFERRED
WITHOUT AN EFFECTIVE  REGISTRATION  STATEMENT UNDER THE ACT OR APPLICABLE  STATE
SECURITIES LAWS.

     This certifies that, for value received,  __________________  or registered
assigns  ("Warrantholder"),  is entitled to purchase  from HALSEY DRUG CO., INC.
(the "Company"),  subject to the provisions of this Warrant,  at any time during
the Exercise Period (as hereinafter  defined)  _________ Shares of the Company's
Common Stock,  par value $.01 per share ("Warrant  Shares").  The purchase price
payable upon the exercise of this Warrant shall be $1.50 per Warrant Share.  The
purchase  price and the  number of Warrant  Shares  which the  Warrantholder  is
entitled  to purchase  are  subject to  adjustment  upon the  occurrence  of the
contingencies set forth in this Warrant, and as adjusted from time to time, such
purchase price is hereinafter referred to as the "Warrant Price."

     For purposes of this Warrant,  the term "Exercise  Period" means the period
commencing  on the date of  issuance  of this  Warrant and ending on the seventh
anniversary of such date.

     This Warrant is subject to the following terms and conditions:

     1.   Exercise of Warrant.

          (a) This  Warrant may be  exercised  in whole or in part but not for a
     fractional  share.  Upon  delivery  of this  Warrant at the  offices of the
     Company or at such other  address as the Company may designate by notice in
     writing to the registered  holder hereof with the Subscription Form annexed
     hereto duly  executed,  accompanied by payment of the Warrant Price for the
     number of Warrant  Shares  purchased (in cash,  by certified,  cashier's or
     other check






     acceptable  to the  Company,  by Common  Stock or other  securities  of the
     Company  having  a  Market  Value  (as  hereinafter  defined)  equal to the
     aggregate  Warrant  Price for the Warrant  Shares to be  purchased,  or any
     combination of the foregoing),  the registered holder of this Warrant shall
     be entitled to receive a certificate or certificates for the Warrant Shares
     so purchased.  Such certificate or certificates shall be promptly delivered
     to the  Warrantholder.  Upon any  partial  exercise  of this  Warrant,  the
     Company  shall  execute  and  deliver a new  Warrant  of like tenor for the
     balance of the Warrant Shares purchasable hereunder.

          (b) In lieu of exercising  this Warrant  pursuant to Section 1(a), the
     holder may elect to receive  shares of Common  Stock  equal to the value of
     this  Warrant  determined  in the manner  described  below (or any  portion
     thereof remaining unexercised) upon delivery of this Warrant at the offices
     of the Company or at such other  address as the Company  may  designate  by
     notice in  writing  to the  registered  holder  hereof  with the  Notice of
     Cashless  Exercise  Form annexed  hereto duly  executed.  In such event the
     Company  shall  issue to the  holder a number of  shares  of the  Company's
     Common Stock computed using the following formula:

                                   X = Y (A-B)
                                       -------
                                       A

     Where X = the number of shares of Common Stock to be issued to the holder.

           Y = the  number of   shares of Common  Stock  purchasable  under this
               Warrant (at the date of such calculation).

           A = the Market Value of the Company's  Common Stock  on the  business
               day immediately preceding the day on which the Notice of Cashless
               Exercise is received by the Company.

           B = Warrant Price (as adjusted to the date of such calculation).

          (c) The Warrant Shares deliverable  hereunder shall, upon issuance, be
     fully paid and  non-assessable  and the  Company  agrees  that at all times
     during the term of this  Warrant it shall cause to be reserved for issuance
     such number of shares of its Common Stock as shall be required for issuance
     and delivery upon exercise of this Warrant.

          (d) For purposes of Section 1(b) of this Warrant,  the Market Value of
     a share of Common  Stock on any date shall be equal to (A) the closing sale
     price per share as  published  by a national  securities  exchange on which
     shares of Common Stock are traded (an "Exchange") on such date or, if there
     is no sale of Common  Stock on such date,  the  average of thebid and asked
     prices on such  Exchange  at the close of  trading  on such date or, (B) if
     shares of Common  Stock are not listed on an  Exchange  on such  date,  the
     closing  price  per  share as  published  on the  National  Association  of
     Securities  Dealers Automatic  Quotation System ("NASDAQ")  National Market
     System if the  shares are  quoted on such  system on such date,  or (C) the
     average of the bid and asked prices in the  over-the-counter  market at the
     close of trading  on such date if the shares are not traded on an  Exchange
     or listed on the NASDAQ National  Market System,  or (D) if the security is
     not traded on an Exchange or in the over-the-counter


                                        2



     market,  the fair market  value of a share of Common  Stock on such date as
     determined in good faith by the Board of Directors. If the holder disagrees
     with the  determination of the Market Value of any securities of the Common
     Stock  determined by the Board of Directors  under Section  1(d)(i)(D)  the
     Market Value shall be determined by an independent  appraiser acceptable to
     the Company and the holder. If they cannot agree on such an appraiser, then
     each of the Company and the holder shall select an  independent  appraiser,
     such two appraisers shall select a third  independent  appraiser and Market
     Value shall be the median of the appraisals  made by such  appraisers).  If
     there is one appraiser,  the cost of the appraisal  shall be shared equally
     between the Company and the holder. If there are three appraisers,  each of
     the Company and the holder shall pay for its own  appraiser and shall share
     equally the cost of the third appraiser.

     2. Transfer or Assignment of Warrant.

     (a) Any  assignment  or transfer of this Warrant shall be made by surrender
of this  Warrant at the offices of the  Company or at such other  address as the
Company  may  designate  in writing to the  registered  holder  hereof  with the
Assignment  Form annexed hereto duly executed and  accompanied by payment of any
requisite  transfer taxes,  and the Company shall,  without charge,  execute and
deliver a new Warrant of like tenor in the name of the  assignee for the portion
so  assigned  in case of only a partial  assignment,  with a new Warrant of like
tenor to the assignor for the balance of the Warrant Shares purchasable.

     (b) Prior to any assignment or transfer of this Warrant, the holder thereof
shall  deliver  an opinion  of  counsel  to the  Company to the effect  that the
proposed transfer may be effected without  registration under the Securities Act
of 1933,  as amended (the  "Securities  Act").  Each  Warrant  issued upon or in
connection with such transfer shall bear the restrictive legend set forth on the
front of this Warrant  unless,  in the opinion of the  Company's  counsel,  such
legend is no longer required to insure compliance with the Securities Act.

     3.  Adjustments  to  Warrant  Price and  Warrant  Shares  --  Anti-Dilution
Provisions.  In  order  to  prevent  dilution  of  the  exercise  right  granted
hereunder, the Warrant Price shall be subject to adjustment from time to time in
accordance  with this  Section  3. Upon each  adjustment  of the  Warrant  Price
pursuant to this Section 3, the holder shall  thereafter  be entitled to acquire
upon exercise of this Warrant,  at the Applicable  Warrant Price (as hereinafter
defined),  the number of shares of Common Stock  obtainable by  multiplying  the
Warrant Price in effect  immediately  prior to such  adjustment by the number of
shares of Common  Stock  acquirable  immediately  prior to such  adjustment  and
dividing the product thereof by the Applicable Warrant Price resulting from such
adjustment.

     The Warrant  Price in effect at the time of the  exercise  of this  Warrant
shall be subject to adjustment from time to time as follows:

          (a) In the event that the  Company  shall at any time:  (i) declare or
     pay to the  holders of the Common  Stock a dividend  payable in any kind of
     shares  of  capital  stock of the  Company;  or (ii)  change  or  divide or
     otherwise  reclassify its Common Stock into the same or a different  number
     of shares with or without par value,  or in shares of any class or classes;
     or (iii)  transfer  its  property  as an entirety  or  substantially  as an
     entirety to any other company or entity;  or (iv) make any  distribution of
     its  assets to  holders of its  Common  Stock as a  liquidation  or partial
     liquidation  dividend  or by way of  return  of  capital;  then,  upon  the
     subsequent exercise


                                       3



     of this Warrant,  the holder  thereof shall  receive,  in addition to or in
     substitution  for the shares of Common Stock to which it would otherwise be
     entitled upon such exercise,  such  additional  shares of stock or scrip of
     the Company,  or such reclassified  shares of stock of the Company, or such
     shares  of the  securities  or  property  of  the  company  resulting  from
     transfer, or such assets of the Company,  which it would have been entitled
     to receive had it exercised  these rights prior to the  happening of any of
     the foregoing events.

          (b) If at any time after the date of issuance hereof the Company shall
     grant or issue any shares of Common Stock,  or grant or issue any rights or
     options for the purchase of, or stock or other securities convertible into,
     Common  Stock  (such   convertible   stock  or   securities   being  herein
     collectively referred to as "Convertible Securities") other than:

               (i) shares issued in a transaction  described in subsection 3(c);
          or

               (ii)  shares  issued,  subdivided  or  combined  in  transactions
          described in  subsection  3(a) if and to the extent that the number of
          shares of Common Stock  receivable upon exercise of this Warrant shall
          have been previously  adjusted pursuant to subsection 3(a) as a result
          of such issuance, subdivision or combination of such securities; 

     for a consideration  per share which is less than the Fair Market Value (as
     hereinafter  defined) of the Common Stock, then the Warrant Price in effect
     immediately prior to such issuance or sale (the "Applicable Warrant Price")
     shall,  and thereafter upon each issuance or sale for a  consideration  per
     share which is less than the Fair  Market  Value of the Common  Stock,  the
     Applicable Warrant Price shall,  simultaneously with such issuance or sale,
     be  adjusted,  so that such  Applicable  Warrant  Price shall equal a price
     determined by multiplying the Applicable  Warrant Price by a fraction,  the
     numerator of which shall be:

          (A) the  sum of (x)  the  total  number  of  shares  of  Common  Stock
          outstanding when the Applicable  Warrant Price became effective,  plus
          (y)  the  number  of  shares  of  Common  Stock  which  the  aggregate
          consideration  received,  as determined in accordance  with subsection
          3(d)  for the  issuance  or sale of such  additional  Common  Stock or
          Convertible  Securities  deemed to be an issuance  of Common  Stock as
          provided  in  subsection   3(e),   would   purchase   (including   any
          consideration  received by the Company upon the issuance of any shares
          of Common  Stock since the date the  Applicable  Warrant  Price became
          effective not previously  included in any computation  resulting in an
          adjustment  pursuant to this subsection 3(b)) at the Fair Market Value
          of the Common Stock; and the denominator of which shall be

          (B) the total number of shares of Common Stock  outstanding (or deemed
          to be outstanding as provided in subsection  3(e) hereof)  immediately
          after the issuance or sale of such additional shares.

          For  purposes of this  Section 3, "Fair  Market  Value" shall mean the
     average of the  closing  price of the  Common  Stock for each of the twenty
     (20) consecutive trading days


                                       4



     prior to such  issuance or sale on an Exchange or if shares of Common Stock
     are not listed on an Exchange  during such  period,  the closing  price per
     share as reported by NASDAQ National Market System if the shares are quoted
     on such  system  during  such  period,  or the average of the bid and asked
     prices of the Common Stock in the  over-the-counter  market at the close of
     trading  during  such period if the shares are not traded on an Exchange or
     listed on the NASDAQ National Market System,  or if the Common Stock is not
     traded on an Exchange or in the  over-the-counter  market,  the fair market
     value of a share of Common Stock during such period as  determined  in good
     faith by the Board of Directors.

     If, however, the Applicable Warrant Price thus obtained would result in the
     issuance of a lesser number of shares upon  conversion than would be issued
     at the initial  Warrant Price,  the Applicable  Warrant Price shall be such
     initial Warrant Price.

          Upon each  adjustment of the Warrant Price pursuant to this subsection
     3(b),  the total  number of shares of Common  Stock for which this  Warrant
     shall be  exercisable  shall be such  number of shares  (calculated  to the
     nearest tenth)  purchasable at the Applicable Warrant Price multiplied by a
     fraction,  the  numerator  of which  shall be the  Warrant  Price in effect
     immediately  prior to such adjustment and the denominator of which shall be
     the exercise price in effect immediately after such adjustment.

          (c)  Anything in this Section 3 to the  contrary  notwithstanding,  no
     adjustment in the Warrant Price shall be made in connection with:

               (i) the grant, issuance or exercise of any Convertible Securities
               pursuant to the  Company's  qualified or  non-qualified  Employee
               Stock Option Plans or any other bona fide  employee  benefit plan
               or incentive  arrangement,  adopted or approved by the  Company's
               Board of Directors and approved by the Company's shareholders, as
               may be  amended  from time to time,  or under any other bona fide
               employee benefit plan hereafter adopted by the Company's Board of
               Directors; or

               (ii)  the  grant,   issuance  or  exercise  of  any   Convertible
               Securities  in  connection  with  the  hire or  retention  of any
               officer,  director or key employee of the Company,  provided such
               grant is approved by the Company's Board of Directors; or

               (iii) the issuance of any shares of Common Stock  pursuant to the
               grant or exercise of Convertible Securities outstanding as of the
               date hereof (exclusive of any subsequent amendments thereto).

          (d) For the purpose of subsection 3(b), the following provisions shall
     also be applied:

               (i) In case of the  issuance  or sale  of  additional  shares  of
               Common Stock for cash, the consideration  received by the Company
               therefor shall be deemed to be


                                       5



               the  amount of cash  received  by the  Company  for such  shares,
               before deducting therefrom any commissions, compensation or other
               expenses paid or incurred by the Company for any underwriting of,
               or otherwise  in  connection  with,  the issuance or sale of such
               shares.

               (ii) In the case of the issuance of Convertible  Securities,  the
               consideration received by the Company therefor shall be deemed to
               be the amount of cash,  if any,  received  by the Company for the
               issuance of such rights or options,  plus the minimum  amounts of
               cash and fair value of other  consideration,  if any,  payable to
               the  Company  upon the  exercise  of such  rights or  options  or
               payable  to the  Company  upon  conversion  of  such  Convertible
               Securities.

               (iii) In the case of the  issuance  of shares of Common  Stock or
               Convertible  Securities for a consideration  in whole or in part,
               other  than  cash,  the  consideration  other  than cash shall be
               deemed  to  be  the  fair  market  value  thereof  as  reasonably
               determined in good faith by the Board of Directors of the Company
               (irrespective  of  accounting   treatment   thereof);   provided,
               however, that if such consideration  consists of the cancellation
               of debt issued by the Company,  the consideration shall be deemed
               to be the amount the Company  received upon issuance of such debt
               (gross  proceeds)  plus  accrued  interest  and,  in the  case of
               original  issue  discount  or zero coupon  indebtedness,  accrued
               value to the date of such  cancellation,  but not  including  any
               premium  or  discount  at which the debt may then be  trading  or
               which might otherwise be appropriate for such class of debt.

               (iv) In case of the issuance of additional shares of Common Stock
               upon the  conversion or exchange of any  obligations  (other than
               Convertible Securities), the amount of the consideration received
               by the Company  for such  Common  Stock shall be deemed to be the
               consideration  received by the Company  for such  obligations  or
               shares so  converted or  exchanged,  before  deducting  from such
               consideration   so  received  by  the  Company  any  expenses  or
               commissions or  compensation  incurred or paid by the Company for
               any  underwriting  of,  or  otherwise  in  connection  with,  the
               issuance  or  sale  of  such  obligations  or  shares,  plus  any
               consideration  received  by the Company in  connection  with such
               conversion  or  exchange  other than a payment in  adjustment  of
               interest  and  dividends.  If  obligations  or shares of the same
               class  or  series  of a class as the  obligations  or  shares  so
               converted or exchanged have been originally  issued for different
               amounts  of  consideration,  then  the  amount  of  consideration
               received by the Company upon the original issuance of each of the
               obligations or shares so converted or exchange shall be deemed to
               be the  average  amount  of  the  consideration  received  by the
               Company upon the  original  issuance of all such  obligations  or
               shares. The amount of consideration  received by the Company upon
               the original  issuance of the  obligations or shares so converted
               or exchanged  andthe amount of the  consideration,  if any, other
               than such  obligations  or shares,  received by the Company  upon
               such conversion or exchange shall be determined


                                       6



               in the same manner as provided in  paragraphs  (i) and (ii) above
               with respect to the consideration received by the Company in case
               of  the  issuance  of  additional   shares  of  Common  Stock  or
               Convertible Securities.

               (v) In the case of the  issuance of  additional  shares of Common
               Stock as a  dividend,  the  aggregate  number of shares of Common
               Stock issued in payment  ofsuch  dividend shall be deemed to have
               been issued at the close of business on the record date fixed for
               the  determination of stockholders  entitled to such dividend and
               shall  be  deemed  to have  been  issued  without  consideration;
               provided,  however, that if the Company, after fixing such record
               date,  shall legally abandon its plan to so issue Common Stock as
               a dividend,  no adjustment  of the  Applicable  Conversion  Price
               shall be required by reason of the fixing of such record date.

          (e) For purposes of the  adjustment  provided for in  subsection  3(b)
     above, if at any time the Company shall issue any  Convertible  Securities,
     the Company  shall be deemed to have issued at the time of the  issuance of
     such  Convertible  Securities  the maximum number of shares of Common Stock
     issuable  upon   conversion  of  the  total  amount  of  such   Convertible
     Securities.

          (f) On the  expiration,  cancellation or redemption of any Convertible
     Securities,  the Warrant Price then in effect  hereunder shall forthwith be
     readjusted  to such Warrant  Price as would have been  obtained (a) had the
     adjustments  made upon the  issuance or sale of such  expired,  canceled or
     redeemed Convertible Securities been made upon the basis of the issuance of
     only the number of shares of Common Stock  theretofore  actually  delivered
     upon the exercise or conversion  of such  Convertible  Securities  (and the
     total   consideration   received  therefor)  and  (b)  had  all  subsequent
     adjustments  been made on only the basis of the Warrant Price as readjusted
     under this subsection 3(f) for all transactions  (which would have affected
     such  adjusted  Warrant  Price)  made  after the  issuance  or sale of such
     Convertible Securities.

          (g)  Anything in this Section 3 to the  contrary  notwithstanding,  no
     adjustment  in the Warrant Price shall be required  unless such  adjustment
     would require an increase or decrease of at least 1% in such Warrant Price;
     provided,  however, that any adjustments which by reason of this subsection
     3(g) are not  required  to be made shall be carried  forward and taken into
     account  in making  subsequent  adjustments.  All  calculations  under this
     Section 3 shall be made to the nearest cent.

          (h) If, at any time while this  Warrant is  outstanding,  the  Company
     shall pay any dividend  payable in cash or in Common Stock,  shall offer to
     the holders of its Common  Stock for  subscription  or purchase by them any
     shares of stock of any  class or any  other  rights,  shall  enter  into an
     agreement to merge or consolidate with another  corporation,  shall propose
     any capital  reorganization or reclassification of the capital stock of the
     Company, including any subdivision or combination of its outstanding shares
     of Common Stock or there shall be  contemplated  a voluntary or involuntary
     dissolution,  liquidation  or winding up of the Company,  the Company shall
     cause notice thereof to be mailed to the registered  holder of this Warrant
     at


                                       7



     its address  appearing on the registration  books of the Company,  at least
     thirty  (30) days  prior to the record  date as of which  holders of Common
     Stock shall  participate in such dividend,  distribution or subscription or
     other  rights or at least thirty (30) days prior to the  effective  date of
     the merger, consolidation, reorganization, reclassification or dissolution.
     Upon any  adjustment of any Warrant  Price,  then and in each such case the
     Company shall promptly  deliver a notice to the  registered  holder of this
     Warrant,  which notice shall state the Warrant  Price  resulting  from such
     adjustment,  setting forth in reasonable  detail the method of  calculation
     and the facts upon which such calculation is based.

          (i) If the Company is a party to a merger or other  transaction  which
     reclassifies or changes its outstanding  Common Stock, upon consummation of
     such transaction this Warrant shall  automatically  become  exercisable for
     the kind and amount of securities, cash or other assets which the holder of
     this Warrant would have owned  immediately  after such  transaction  if the
     holder  had  converted   this  Warrant  at  the  Warrant  Price  in  effect
     immediately before the effective date of the transaction. Concurrently with
     the  consummation  of such  transaction,  the  person  obligated  to  issue
     securities  or deliver cash or other  assets upon  exercise of this Warrant
     shall execute and deliver to the holder a supplemental Warrant so providing
     and further  providing for adjustments  which shall be as nearly equivalent
     as may be  practical  to the  adjustments  provided in this  Section 3. The
     successor  company  shall  mail  to the  holder  a  notice  describing  the
     supplemental Warrant.

     If securities deliverable upon exercise of this Warrant, as provided above,
are  themselves  convertible  into  or  exercisable  for  the  securities  of an
affiliate of a corporation formed, surviving or otherwise affected by the merger
or other transaction,  that issuer shall join in the supplemental  Warrant which
shall so provide.  If this  subsection  3(i) applies,  subsection  3(a) does not
apply.

     4. Charges,  Taxes and Expenses.  The issuance of certificates  for Warrant
Shares upon any  exercise of this Warrant  shall be made  without  charge to the
holder of this  Warrant for any tax or other  expense in respect to the issuance
of such  certificates,  all of which  taxes  and  expenses  shall be paid by the
Company, and such certificates shall be issued only in the name of the holder of
this Warrant.

     5. Miscellaneous.

     (a) The terms of this Warrant  shall be binding upon and shall inure to the
benefit of any successors or assigns of the Company and of the holder or holders
hereof and of the shares of Common  Stock  issued or issuable  upon the exercise
hereof.

     (b) No  holder  of this  Warrant,  as such,  shall be  entitled  to vote or
receive  dividends  or be  deemed to be a  stockholder  of the  Company  for any
purpose,  nor shall  anything  contained  in this Warrant be construed to confer
upon the holder of this Warrant,  as such,  any rights of a  stockholder  of the
Company or any right to vote, give or withhold consent to any corporate  action,
receive  notice of  meetings,  receive  dividends  or  subscription  rights,  or
otherwise.


                                       8



     (c)  Receipt  of  this  Warrant  by  the  holder  hereof  shall  constitute
acceptance of an agreement to the foregoing terms and conditions.

     (d) The  Warrant and the  performance  of the  parties  hereunder  shall be
construed and  interpreted in accordance  with the laws of the State of New York
wherein it was  negotiated  and executed and the parties  hereunder  consent and
agree that the State and Federal  Courts  which sit in the State of New York and
the County of New York shall have  exclusive  jurisdiction  with  respect to all
controversies and disputes arising hereunder.

     (e) The shares  issuable  upon exercise of this Warrant are entitled to the
benefits of the  registration  rights  provisions  of the  Debenture and Warrant
Purchase  Agreement  dated the date hereof  among the Company and various  other
parties (the "Purchase Agreement").

     (f) This Warrant is subject to certain  other  agreements  contained in the
Purchase  Agreement,  a copy of  which  is on file  with  the  Secretary  of the
Company.  Shares  issued upon  exercise of this Warrant  shall  contain a legend
substantially  to the same  effect as the  legend set forth on the first page of
this Warrant.

     IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by its
duly authorized officer and its corporate seal to be affixed hereto.

Dated as of March ____, 1998


                                        HALSEY DRUG CO., INC.



                                        BY:
                                           ---------------------------------
                                             Name:
                                             Title:


                                       9



                                SUBSCRIPTION FORM


                    (TO BE EXECUTED BY THE REGISTERED HOLDER
                     IF HE DESIRES TO EXERCISE THE WARRANT)


     To: HALSEY DRUG CO., INC.


     The undersigned  hereby exercises the right to purchase _________ shares of
Common  Stock,  par value $.01 per share,  covered  by the  attached  Warrant in
accordance with the terms and conditions thereof,  and herewith makes payment of
the Warrant Price for such shares in full.


                                       
                                        -----------------------------------
                                        SIGNATURE


                                        -----------------------------------
                                        ADDRESS


DATED:
      ---------------------------





                   NOTICE OF EXERCISE OF COMMON STOCK WARRANT
             PURSUANT TO NET ISSUE ("CASHLESS") EXERCISE PROVISIONS

                                                                        [ Date ]



Halsey Drug Co., Inc.             Aggregate Price of            $               
a New York corporation            of Warrant                     ---------------
1827 Pacific Street               Aggregate Price Being         
Brooklyn, New York  11233         Exercised:                    $               
Attention:                                                       ---------------
          -----------------       Warrant Price                 
                                  (per share):                  $               
                                                                 ---------------
                                  Market Value (per             
                                  share):                       $               
                                                                 ---------------
                                  Number of Shares of           
                                  Common Stock under
                                  this Warrant:                  ---------------

                                  Number of Shares of
                                  Common Stock to be
                                  Issued Under this
                                  Notice:                        ---------------


                                CASHLESS EXERCISE


Gentlemen:

     The  undersigned,  the registered  holder of the Warrant to Purchase Common
Stock delivered herewith ("Warrant"),  hereby irrevocably exercises such Warrant
for, and  purchases  thereunder,  shares of the Common Stock of HALSEY DRUG CO.,
INC., a New York corporation,  as provided below. Capitalized terms used herein,
unless otherwise  defined herein,  shall have the meanings given in the Warrant.
The portion of the Aggregate Price (as hereinafter defined) to be applied toward
the purchase of Common Stock pursuant to this Notice of Exercise is $__________,
thereby leaving a remainder Aggregate Price (if any) equal to $__________.  Such
exercise shall be pursuant to the net issue exercise  provisions of Section 1(b)
of the  Warrant;  therefore,  the holder  makes no payment  with this  Notice of
Exercise.  The number of shares to be issued  pursuant to this exercise shall be
determined  by  reference  to the formula in Section  1(b) of the Warrant  which
requires the use of the Market Value (as defined in Section 1(d) of the Warrant)
of the Company's Common Stock on the business day immediately  preceding the day
on which this Notice is received by the Company. To the extent





the foregoing exercise is for less than the full Aggregate Price of the Warrant,
the  remainder  of the  Warrant  representing  a number of  Shares  equal to the
quotient  obtained by  dividing  the  remainder  of the  Aggregate  Price by the
Warrant  Price (and  otherwise of like form,  tenor and effect) may be exercised
under  Section  1(a) of the  Warrant.  For  purposes  of this  Notice  the  term
"Aggregate Price" means the product obtained by multiplying the number of shares
of Common Stock for which the Warrant is exercisable times the Warrant Price.



                                        ----------------------------------------
                                        SIGNATURE



DATE:                                   
     ------------------                 ----------------------------------------
                                        ADDRESS


                                        2




                                   ASSIGNMENT


                    (To be Executed by the Registered Holder
                     if he Desires to Transfer the Warrant)


     FOR VALUE  RECEIVED,  the undersigned  hereby sells,  assigns and transfers
unto  _____________________  the right to  purchase  shares  of Common  Stock of
HALSEY  DRUG  CO.,  INC.,  evidenced  by the  within  Warrant,  and does  hereby
irrevocably  constitute and appoint Attorney to transfer the said Warrant on the
books of the Company, with full power of substitution.






                                        ----------------------------------------
                                        SIGNATURE



DATED:                                  
     ------------------                 ----------------------------------------
                                        ADDRESS

IN THE PRESENCE OF:


- -----------------------


                                        3


                                    EXHIBIT 5


                               WARRANT TO PURCHASE
                     COMMON STOCK, PAR VALUE $.01 PER SHARE

                                       OF

                              HALSEY DRUG CO., INC.


THIS WARRANT AND THE COMMON STOCK  ISSUABLE UPON  EXERCISE  HEREOF HAVE NOT BEEN
REGISTERED  UNDER THE  SECURITIES  ACT OF 1933, AS AMENDED (THE "ACT") NOR UNDER
ANY STATE SECURITIES LAW AND MAY NOT BE PLEDGED, SOLD, ASSIGNED, HYPOTHECATED OR
OTHERWISE TRANSFERRED UNTIL (1) A REGISTRATION STATEMENT WITH RESPECT THERETO IS
EFFECTIVE  UNDER  THE ACT AND ANY  APPLICABLE  STATE  SECURITIES  LAW OR (2) THE
COMPANY  RECEIVES AN OPINION OF COUNSEL TO THE  COMPANY OR OTHER  COUNSEL TO THE
HOLDER OF SUCH WARRANT REASONABLY  SATISFACTORY TO THE COMPANY THAT SUCH WARRANT
AND/OR COMMON STOCK MAY BE PLEDGED, SOLD, ASSIGNED,  HYPOTHECATED OR TRANSFERRED
WITHOUT AN EFFECTIVE  REGISTRATION  STATEMENT UNDER THE ACT OR APPLICABLE  STATE
SECURITIES LAWS.

     This certifies that, for value received,  __________________  or registered
assigns  ("Warrantholder"),  is entitled to purchase  from HALSEY DRUG CO., INC.
(the "Company"),  subject to the provisions of this Warrant,  at any time during
the Exercise Period (as hereinafter  defined)  _________ Shares of the Company's
Common Stock,  par value $.01 per share ("Warrant  Shares").  The purchase price
payable upon the exercise of this Warrant shall be $2.375 per Warrant Share. The
purchase  price and the  number of Warrant  Shares  which the  Warrantholder  is
entitled  to purchase  are  subject to  adjustment  upon the  occurrence  of the
contingencies set forth in this Warrant, and as adjusted from time to time, such
purchase price is hereinafter referred to as the "Warrant Price."

     For purposes of this Warrant,  the term "Exercise  Period" means the period
commencing  on the date of  issuance  of this  Warrant and ending on the seventh
anniversary of such date.

     This Warrant is subject to the following terms and conditions:

     1.   Exercise of Warrant.

     (a)  This  Warrant  may be  exercised  in  whole  or in part  but not for a
fractional share. Upon delivery of this Warrant at the offices of the Company or
at such other  address as the Company may  designate by notice in writing to the
registered  holder  hereof  with  the  Subscription  Form  annexed  hereto  duly
executed,  accompanied by payment of the Warrant Price for the number of Warrant
Shares purchased (in cash, by certified, cashier's or other check






acceptable  to the Company,  by Common Stock or other  securities of the Company
having a Market Value (as  hereinafter  defined) equal to the aggregate  Warrant
Price  for  the  Warrant  Shares  to be  purchased,  or any  combination  of the
foregoing), the registered holder of this Warrant shall be entitled to receive a
certificate  or  certificates   for  the  Warrant  Shares  so  purchased.   Such
certificate or certificates  shall be promptly  delivered to the  Warrantholder.
Upon any partial exercise of this Warrant, the Company shall execute and deliver
a new Warrant of like tenor for the balance of the  Warrant  Shares  purchasable
hereunder.

     (b) In lieu of exercising this Warrant pursuant to Section 1(a), the holder
may elect to receive  shares of Common  Stock equal to the value of this Warrant
determined  in the manner  described  below (or any  portion  thereof  remaining
unexercised)  upon  delivery of this Warrant at the offices of the Company or at
such other  address as the  Company  may  designate  by notice in writing to the
registered  holder  hereof with the Notice of  Cashless  Exercise  Form  annexed
hereto  duly  executed.  In such event the  Company  shall issue to the holder a
number of shares of the  Company's  Common Stock  computed  using the  following
formula:

                                   X = Y (A-B)
                                       --------
                                       A

Where X = the number of shares of Common Stock to be issued to the holder.

      Y = the number of shares of  Common Stock  purchasable under this  Warrant
          (at the date of such calculation).

      A = the  Market Value of the  Company's  Common Stock on the business  day
          immediately preceding the day on which the Notice of Cashless Exercise
          is received by the Company.

      B = Warrant Price (as adjusted to the date of such calculation).

     (c) The Warrant Shares deliverable hereunder shall, upon issuance, be fully
paid and non-assessable and the Company agrees that at all times during the term
of this Warrant it shall cause to be reserved for issuance such number of shares
of its Common Stock as shall be required for issuance and delivery upon exercise
of this Warrant.

     (d) For  purposes of Section  1(b) of this  Warrant,  the Market Value of a
share of Common  Stock on any date shall be equal to (A) the closing  sale price
per share as  published  by a national  securities  exchange on which  shares of
Common Stock are traded (an  "Exchange") on such date or, if there is no sale of
Common  Stock on such  date,  the  average  of thebid  and asked  prices on such
Exchange at the close of trading on such date or, (B) if shares of Common  Stock
are not listed on an  Exchange  on such  date,  the  closing  price per share as
published on the National  Association of Securities Dealers Automatic Quotation
System ("NASDAQ") National Market System if the shares are quoted on such system
on  such  date,  or  (C)  the  average  of  the  bid  and  asked  prices  in the
over-the-counter  market at the close of  trading on such date if the shares are
not traded on an Exchange or listed on the NASDAQ National Market System, or (D)
if the security is not traded on an Exchange or in the over-the-counter


                                        2



market,  the  fair  market  value  of a share of  Common  Stock on such  date as
determined in good faith by the Board of Directors. If the holder disagrees with
the  determination  of the Market  Value of any  securities  of the Common Stock
determined by the Board of Directors  under Section  1(d)(i)(D) the Market Value
shall be determined by an  independent  appraiser  acceptable to the Company and
the holder. If they cannot agree on such an appraiser,  then each of the Company
and the holder shall select an independent appraiser,  such two appraisers shall
select a third independent appraiser and Market Value shall be the median of the
appraisals made by such appraisers).  If there is one appraiser, the cost of the
appraisal shall be shared equally  between the Company and the holder.  If there
are three  appraisers,  each of the Company and the holder shall pay for its own
appraiser and shall share equally the cost of the third appraiser.

     2. Transfer or Assignment of Warrant.

     (a) Any  assignment  or transfer of this Warrant shall be made by surrender
of this  Warrant at the offices of the  Company or at such other  address as the
Company  may  designate  in writing to the  registered  holder  hereof  with the
Assignment  Form annexed hereto duly executed and  accompanied by payment of any
requisite  transfer taxes,  and the Company shall,  without charge,  execute and
deliver a new Warrant of like tenor in the name of the  assignee for the portion
so  assigned  in case of only a partial  assignment,  with a new Warrant of like
tenor to the assignor for the balance of the Warrant Shares purchasable.

     (b) Prior to any assignment or transfer of this Warrant, the holder thereof
shall  deliver  an opinion  of  counsel  to the  Company to the effect  that the
proposed transfer may be effected without  registration under the Securities Act
of 1933,  as amended (the  "Securities  Act").  Each  Warrant  issued upon or in
connection with such transfer shall bear the restrictive legend set forth on the
front of this Warrant  unless,  in the opinion of the  Company's  counsel,  such
legend is no longer required to insure compliance with the Securities Act.

     3.  Adjustments  to  Warrant  Price and  Warrant  Shares  --  Anti-Dilution
Provisions.  In  order  to  prevent  dilution  of  the  exercise  right  granted
hereunder, the Warrant Price shall be subject to adjustment from time to time in
accordance  with this  Section  3. Upon each  adjustment  of the  Warrant  Price
pursuant to this Section 3, the holder shall  thereafter  be entitled to acquire
upon exercise of this Warrant,  at the Applicable  Warrant Price (as hereinafter
defined),  the number of shares of Common Stock  obtainable by  multiplying  the
Warrant Price in effect  immediately  prior to such  adjustment by the number of
shares of Common  Stock  acquirable  immediately  prior to such  adjustment  and
dividing the product thereof by the Applicable Warrant Price resulting from such
adjustment.

     The Warrant  Price in effect at the time of the  exercise  of this  Warrant
shall be subject to adjustment from time to time as follows:

          (a) In the event that the  Company  shall at any time:  (i) declare or
     pay to the  holders of the Common  Stock a dividend  payable in any kind of
     shares  of  capital  stock of the  Company;  or (ii)  change  or  divide or
     otherwise  reclassify its Common Stock into the same or a different  number
     of shares with or without par value,  or in shares of any class or classes;
     or (iii)  transfer  its  property  as an entirety  or  substantially  as an
     entirety to any other company or entity;  or (iv) make any  distribution of
     its  assets to  holders of its  Common  Stock as a  liquidation  or partial
     liquidation  dividend  or by way of  return  of  capital;  then,  upon  the
     subsequent exercise


                                        3




     of this Warrant,  the holder  thereof shall  receive,  in addition to or in
     substitution  for the shares of Common Stock to which it would otherwise be
     entitled upon such exercise,  such  additional  shares of stock or scrip of
     the Company,  or such reclassified  shares of stock of the Company, or such
     shares  of the  securities  or  property  of  the  company  resulting  from
     transfer, or such assets of the Company,  which it would have been entitled
     to receive had it exercised  these rights prior to the  happening of any of
     the foregoing events.

          (b) If at any time after the date of issuance hereof the Company shall
     grant or issue any shares of Common Stock,  or grant or issue any rights or
     options for the purchase of, or stock or other securities convertible into,
     Common  Stock  (such   convertible   stock  or   securities   being  herein
     collectively referred to as "Convertible Securities") other than:

               (i) shares issued in a transaction  described in subsection 3(c);
          or

               (ii)  shares  issued,  subdivided  or  combined  in  transactions
          described in  subsection  3(a) if and to the extent that the number of
          shares of Common Stock  receivable upon exercise of this Warrant shall
          have been previously  adjusted pursuant to subsection 3(a) as a result
          of such issuance, subdivision or combination of such securities;

for a  consideration  per  share  which is less than the Fair  Market  Value (as
hereinafter  defined)  of the Common  Stock,  then the  Warrant  Price in effect
immediately  prior to such  issuance or sale (the  "Applicable  Warrant  Price")
shall,  and thereafter upon each issuance or sale for a consideration  per share
which is less than the Fair Market  Value of the Common  Stock,  the  Applicable
Warrant Price shall,  simultaneously with such issuance or sale, be adjusted, so
that such Applicable Warrant Price shall equal a price determined by multiplying
the Applicable Warrant Price by a fraction, the numerator of which shall be:

          (A) the  sum of (x)  the  total  number  of  shares  of  Common  Stock
          outstanding when the Applicable  Warrant Price became effective,  plus
          (y)  the  number  of  shares  of  Common  Stock  which  the  aggregate
          consideration  received,  as determined in accordance  with subsection
          3(d)  for the  issuance  or sale of such  additional  Common  Stock or
          Convertible  Securities  deemed to be an issuance  of Common  Stock as
          provided  in  subsection   3(e),   would   purchase   (including   any
          consideration  received by the Company upon the issuance of any shares
          of Common  Stock since the date the  Applicable  Warrant  Price became
          effective not previously  included in any computation  resulting in an
          adjustment  pursuant to this subsection 3(b)) at the Fair Market Value
          of the Common Stock; and the denominator of which shall be

          (B) the total number of shares of Common Stock  outstanding (or deemed
          to be outstanding as provided in subsection  3(e) hereof)  immediately
          after the issuance or sale of such additional shares.

     For purposes of this Section 3, "Fair Market  Value" shall mean the average
of the closing price of the Common Stock for each of the twenty (20) consecutive
trading days


                                        4




prior to such  issuance or sale on an Exchange or if shares of Common  Stock are
not listed on an Exchange  during such  period,  the closing  price per share as
reported  by NASDAQ  National  Market  System if the  shares  are quoted on such
system  during such  period,  or the average of the bid and asked  prices of the
Common Stock in the over-the-counter  market at the close of trading during such
period if the  shares  are not  traded on an  Exchange  or listed on the  NASDAQ
National  Market System,  or if the Common Stock is not traded on an Exchange or
in the over-the-counter market, the fair market value of a share of Common Stock
during such period as determined in good faith by the Board of Directors.

If,  however,  the  Applicable  Warrant Price thus obtained  would result in the
issuance of a lesser  number of shares upon  conversion  than would be issued at
the initial  Warrant Price,  the Applicable  Warrant Price shall be such initial
Warrant Price.

     Upon each adjustment of the Warrant Price pursuant to this subsection 3(b),
the total  number of shares of  Common  Stock for which  this  Warrant  shall be
exercisable  shall be such number of shares  (calculated  to the nearest  tenth)
purchasable  at the  Applicable  Warrant  Price  multiplied  by a fraction,  the
numerator  of which shall be the Warrant  Price in effect  immediately  prior to
such  adjustment  and the  denominator  of which shall be the exercise  price in
effect immediately after such adjustment.

     (c)  Anything  in  this  Section  3 to  the  contrary  notwithstanding,  no
adjustment in the Warrant Price shall be made in connection with:

     (i) the grant, issuance or exercise of any Convertible  Securities pursuant
     to the Company's qualified or non-qualified  Employee Stock Option Plans or
     any other bona fide employee benefit plan or incentive arrangement, adopted
     or  approved  by the  Company's  Board of  Directors  and  approved  by the
     Company's  shareholders,  as may be amended from time to time, or under any
     other bona fide employee  benefit plan  hereafter  adopted by the Company's
     Board of Directors; or

     (ii) the grant,  issuance  or  exercise of any  Convertible  Securities  in
     connection  with the hire or  retention  of any  officer,  director  or key
     employee of the Company,  provided  such grant is approved by the Company's
     Board of Directors; or

     (iii) the issuance of any shares of Common  Stock  pursuant to the grant or
     exercise  of  Convertible  Securities  outstanding  as of the  date  hereof
     (exclusive of any subsequent amendments thereto).

     (d) For the purpose of subsection 3(b), the following provisions shall also
be applied:

     (i) In case of the  issuance or sale of  additional  shares of Common Stock
     for cash,  the  consideration  received  by the Company  therefor  shall be
     deemed to be


                                        5




     the  amount  of cash  received  by the  Company  for  such  shares,  before
     deducting therefrom any commissions, compensation or other expenses paid or
     incurred by the Company for any underwriting of, or otherwise in connection
     with, the issuance or sale of such shares.

     (ii)  In  the  case  of  the  issuance  of  Convertible   Securities,   the
     consideration  received by the Company  therefor  shall be deemed to be the
     amount of cash,  if any,  received by the Company for the  issuance of such
     rights or options, plus the minimum amounts of cash and fair value of other
     consideration,  if any,  payable to the Company  upon the  exercise of such
     rights or  options  or  payable  to the  Company  upon  conversion  of such
     Convertible Securities.

     (iii) In the case of the issuance of shares of Common Stock or  Convertible
     Securities for a  consideration  in whole or in part,  other than cash, the
     consideration  other than cash shall be deemed to be the fair market  value
     thereof as reasonably determined in good faith by the Board of Directors of
     the Company  (irrespective  of  accounting  treatment  thereof);  provided,
     however,  that if such  consideration  consists of the cancellation of debt
     issued by the Company,  the consideration  shall be deemed to be the amount
     the Company  received  upon  issuance of such debt  (gross  proceeds)  plus
     accrued interest and, in the case of original issue discount or zero coupon
     indebtedness,  accrued  value  to the  date of such  cancellation,  but not
     including  any premium or discount at which the debt may then be trading or
     which might otherwise be appropriate for such class of debt.

     (iv) In case of the issuance of additional  shares of Common Stock upon the
     conversion  or  exchange  of  any  obligations   (other  than   Convertible
     Securities),  the amount of the  consideration  received by the Company for
     such Common Stock shall be deemed to be the  consideration  received by the
     Company for such  obligations  or shares so converted or exchanged,  before
     deducting from such  consideration  so received by the Company any expenses
     or  commissions  or  compensation  incurred  or paid by the Company for any
     underwriting  of, or otherwise in connection  with, the issuance or sale of
     such obligations or shares, plus any consideration  received by the Company
     in  connection  with such  conversion  or exchange  other than a payment in
     adjustment of interest and dividends.  If obligations or shares of the same
     class or series of a class as the  obligations  or shares so  converted  or
     exchanged   have  been   originally   issued  for   different   amounts  of
     consideration,  then the amount of  consideration  received  by the Company
     upon  the  original  issuance  of  each of the  obligations  or  shares  so
     converted  or  exchange  shall be  deemed to be the  average  amount of the
     consideration  received by the Company  upon the  original  issuance of all
     such  obligations or shares.  The amount of  consideration  received by the
     Company  upon  the  original  issuance  of the  obligations  or  shares  so
     converted or exchanged  andthe amount of the  consideration,  if any, other
     than  such  obligations  or  shares,  received  by the  Company  upon  such
     conversion or exchange shall be determined


                                       6




     in the same  manner as  provided  in  paragraphs  (i) and (ii)  above  with
     respect  to the  consideration  received  by the  Company  in  case  of the
     issuance of additional shares of Common Stock or Convertible Securities.

     (v) In the case of the issuance of  additional  shares of Common Stock as a
     dividend,  the aggregate number of shares of Common Stock issued in payment
     ofsuch  dividend  shall be  deemed  to have  been  issued  at the  close of
     business on the record  date fixed for the  determination  of  stockholders
     entitled to such  dividend and shall be deemed to have been issued  without
     consideration;  provided,  however, that if the Company,  after fixing such
     record date,  shall legally  abandon its plan to so issue Common Stock as a
     dividend,  no  adjustment  of the  Applicable  Conversion  Price  shall  be
     required by reason of the fixing of such record date.

     (e) For purposes of the adjustment  provided for in subsection  3(b) above,
if at any time the Company shall issue any Convertible  Securities,  the Company
shall be deemed to have issued at the time of the  issuance of such  Convertible
Securities the maximum number of shares of Common Stock issuable upon conversion
of the total amount of such Convertible Securities.

     (f)  On the  expiration,  cancellation  or  redemption  of any  Convertible
Securities,  the  Warrant  Price then in effect  hereunder  shall  forthwith  be
readjusted  to such  Warrant  Price  as would  have  been  obtained  (a) had the
adjustments made upon the issuance or sale of such expired, canceled or redeemed
Convertible  Securities  been made upon the  basis of the  issuance  of only the
number of  shares  of  Common  Stock  theretofore  actually  delivered  upon the
exercise  or  conversion  of  such   Convertible   Securities   (and  the  total
consideration  received  therefor) and (b) had all subsequent  adjustments  been
made on only the basis of the Warrant Price as readjusted  under this subsection
3(f) for all  transactions  (which would have  affected  such  adjusted  Warrant
Price) made after the issuance or sale of such Convertible Securities.

     (g)  Anything  in  this  Section  3 to  the  contrary  notwithstanding,  no
adjustment in the Warrant Price shall be required unless such  adjustment  would
require an increase or decrease of at least 1% in such Warrant Price;  provided,
however,  that any  adjustments  which by reason of this subsection 3(g) are not
required to be made shall be carried  forward  and taken into  account in making
subsequent  adjustments.  All calculations under this Section 3 shall be made to
the nearest cent.

     (h) If, at any time while this Warrant is  outstanding,  the Company  shall
pay any dividend payable in cash or in Common Stock,  shall offer to the holders
of its Common Stock for  subscription or purchase by them any shares of stock of
any  class or any  other  rights,  shall  enter  into an  agreement  to merge or
consolidate with another corporation,  shall propose any capital  reorganization
or  reclassification  of  the  capital  stock  of  the  Company,  including  any
subdivision or combination  of its  outstanding  shares of Common Stock or there
shall be  contemplated  a voluntary or involuntary  dissolution,  liquidation or
winding up of the Company,  the Company shall cause notice  thereof to be mailed
to the registered holder of this Warrant at


                                        7




its address appearing on the registration books of the Company,  at least thirty
(30) days prior to the record  date as of which  holders of Common  Stock  shall
participate in such dividend, distribution or subscription or other rights or at
least thirty (30) days prior to the effective date of the merger, consolidation,
reorganization,  reclassification  or  dissolution.  Upon any  adjustment of any
Warrant Price,  then and in each such case the Company shall promptly  deliver a
notice to the  registered  holder of this Warrant,  which notice shall state the
Warrant Price resulting from such adjustment, setting forth in reasonable detail
the method of calculation and the facts upon which such calculation is based.

     (i) If the  Company  is a party to a  merger  or  other  transaction  which
reclassifies or changes its outstanding  Common Stock, upon consummation of such
transaction this Warrant shall automatically become exercisable for the kind and
amount of  securities,  cash or other  assets  which the holder of this  Warrant
would have owned  immediately after such transaction if the holder had converted
this Warrant at the Warrant  Price in effect  immediately  before the  effective
date of the transaction. Concurrently with the consummation of such transaction,
the person  obligated to issue  securities  or deliver cash or other assets upon
exercise of this Warrant shall execute and deliver to the holder a  supplemental
Warrant so providing  and further  providing for  adjustments  which shall be as
nearly  equivalent  as may be  practical  to the  adjustments  provided  in this
Section 3. The successor  company  shall mail to the holder a notice  describing
the supplemental Warrant.

     If securities deliverable upon exercise of this Warrant, as provided above,
are  themselves  convertible  into  or  exercisable  for  the  securities  of an
affiliate of a corporation formed, surviving or otherwise affected by the merger
or other transaction,  that issuer shall join in the supplemental  Warrant which
shall so provide.  If this  subsection  3(i) applies,  subsection  3(a) does not
apply.

     4. Charges,  Taxes and Expenses.  The issuance of certificates  for Warrant
Shares upon any  exercise of this Warrant  shall be made  without  charge to the
holder of this  Warrant for any tax or other  expense in respect to the issuance
of such  certificates,  all of which  taxes  and  expenses  shall be paid by the
Company, and such certificates shall be issued only in the name of the holder of
this Warrant.

     5. Miscellaneous.

     (a) The terms of this Warrant  shall be binding upon and shall inure to the
benefit of any successors or assigns of the Company and of the holder or holders
hereof and of the shares of Common  Stock  issued or issuable  upon the exercise
hereof.

     (b) No  holder  of this  Warrant,  as such,  shall be  entitled  to vote or
receive  dividends  or be  deemed to be a  stockholder  of the  Company  for any
purpose,  nor shall  anything  contained  in this Warrant be construed to confer
upon the holder of this Warrant,  as such,  any rights of a  stockholder  of the
Company or any right to vote, give or withhold consent to any corporate  action,
receive  notice of  meetings,  receive  dividends  or  subscription  rights,  or
otherwise.


                                        8





     (c)  Receipt  of  this  Warrant  by  the  holder  hereof  shall  constitute
acceptance of an agreement to the foregoing terms and conditions.

     (d) The  Warrant and the  performance  of the  parties  hereunder  shall be
construed and  interpreted in accordance  with the laws of the State of New York
wherein it was  negotiated  and executed and the parties  hereunder  consent and
agree that the State and Federal  Courts  which sit in the State of New York and
the County of New York shall have  exclusive  jurisdiction  with  respect to all
controversies and disputes arising hereunder.

     (e) The shares  issuable  upon exercise of this Warrant are entitled to the
benefits of the  registration  rights  provisions  of the  Debenture and Warrant
Purchase  Agreement  dated the date hereof  among the Company and various  other
parties (the "Purchase Agreement").

     (f) This Warrant is subject to certain  other  agreements  contained in the
Purchase  Agreement,  a copy of  which  is on file  with  the  Secretary  of the
Company.  Shares  issued upon  exercise of this Warrant  shall  contain a legend
substantially  to the same  effect as the  legend set forth on the first page of
this Warrant.

     IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by its
duly authorized officer and its corporate seal to be affixed hereto.

Dated as of March ____, 1998

                                        HALSEY DRUG CO., INC.



                                        BY:
                                           ------------------------------------
                                             Name:
                                             Title:


                                        9




                                SUBSCRIPTION FORM


                    (TO BE EXECUTED BY THE REGISTERED HOLDER
                     IF HE DESIRES TO EXERCISE THE WARRANT)


          To:   HALSEY DRUG CO., INC.


     The undersigned  hereby exercises the right to purchase _________ shares of
Common  Stock,  par value $.01 per share,  covered  by the  attached  Warrant in
accordance with the terms and conditions thereof,  and herewith makes payment of
the Warrant Price for such shares in full.



                                        ---------------------------------------
                                        SIGNATURE



                                        ---------------------------------------
                                        ADDRESS







DATED:
      -----------------------







                   NOTICE OF EXERCISE OF COMMON STOCK WARRANT
             PURSUANT TO NET ISSUE ("CASHLESS") EXERCISE PROVISIONS


                                                                        [ Date ]



Halsey Drug Co., Inc.               Aggregate Price of            $             
a New York corporation              of Warrant                     -------------
1827 Pacific Street                 Aggregate Price Being         
Brooklyn, New York  11233           Exercised:                    $             
Attention:                                                         -------------
          --------------------      Warrant Price                 
                                    (per share):                  $             
                                                                   -------------
                                    Market Value (per             
                                    share):                       $             
                                                                   -------------
                                    Number of Shares of           
                                    Common Stock under
                                    this Warrant:                  -------------

                                    Number of Shares of
                                    Common Stock to be
                                    Issued Under this
                                    Notice:                        -------------



                                CASHLESS EXERCISE


Gentlemen:

     The  undersigned,  the registered  holder of the Warrant to Purchase Common
Stock delivered herewith ("Warrant"),  hereby irrevocably exercises such Warrant
for, and  purchases  thereunder,  shares of the Common Stock of HALSEY DRUG CO.,
INC., a New York corporation,  as provided below. Capitalized terms used herein,
unless otherwise  defined herein,  shall have the meanings given in the Warrant.
The portion of the Aggregate Price (as hereinafter defined) to be applied toward
the purchase of Common Stock  pursuant to this Notice of Exercise is $_________,

thereby leaving a remainder Aggregate Price (if any) equal to $__________ . Such
exercise shall be pursuant to the net issue exercise  provisions of Section 1(b)
of the  Warrant;  therefore,  the holder  makes no payment  with this  Notice of
Exercise.  The number of shares to be issued  pursuant to this exercise shall be
determined  by  reference  to the formula in Section  1(b) of the Warrant  which
requires the use of the Market Value (as defined in Section 1(d) of the Warrant)
of the Company's Common Stock on the business day immediately  preceding the day
on which this Notice is received by the Company. To the extent






theforegoing  exercise is for less than the full Aggregate Price of the Warrant,
the  remainder  of the  Warrant  representing  a number of  Shares  equal to the
quotient  obtained by  dividing  the  remainder  of the  Aggregate  Price by the
Warrant  Price (and  otherwise of like form,  tenor and effect) may be exercised
under  Section  1(a) of the  Warrant.  For  purposes  of this  Notice  the  term
"Aggregate Price" means the product obtained by multiplying the number of shares
of Common Stock for which the Warrant is exercisable times the Warrant Price.



                                        ---------------------------------------
                                        SIGNATURE



                                        ---------------------------------------
                                        ADDRESS







DATE:
     -----------------------


                                        2




                                   ASSIGNMENT


                    (To be Executed by the Registered Holder
                     if he Desires to Transfer the Warrant)


     FOR VALUE  RECEIVED,  the undersigned  hereby sells,  assigns and transfers
unto  _______________________  the right to purchase  shares of Common  Stock of
HALSEY  DRUG  CO.,  INC.,  evidenced  by the  within  Warrant,  and does  hereby
irrevocably  constitute  and  appoint   _________________________   Attorney  to
transfer  the said  Warrant  on the books of the  Company,  with  full  power of
substitution.



                                        ---------------------------------------
                                        SIGNATURE



                                        ---------------------------------------
                                        ADDRESS







DATED:
      -----------------------


IN THE PRESENCE OF:


- -----------------------------


                                        3

                                    EXHIBIT 6

                              HALSEY DRUG CO, INC.

                         PROXY FOR SHAREHOLDERS' MEETING

                                IRREVOCABLE PROXY
                                -----------------


     KNOW ALL MEN BY THESE PRESENTS,  that I,  __________________  , residing at
__________________________________  being the holder of  ____________  shares of
Common Stock of HALSEY DRUG CO., INC. (the "Company"),  do hereby constitute and
appoint Bruce F. Wesson,  as my proxy to attend the first Annual  Meeting of the
Stockholders of the Company to be held after the date hereof or any continuation
or adjournment  thereof,  with full power to vote and act for me and in my name,
place and stead, on each of the below listed matters in the same manner,  to the
same  extent and with the same  effect  that I might were I  personally  present
thereat,  giving  to said  Bruce  F.  Wesson,  full  power of  substitution  and
revocation, and I hereby revoke any other proxy heretofore given by me:

     (i)  to vote in favor of a proposed amendment to the Company's  Certificate
          of Incorporation

          (a)  increasing  the number of shares of the  Company's  Common  Stock
               authorized for issuance from 20,000,000 to 40,000,000 shares; and

          (b)  providing that the holder of Debentures  issued by the Company to
               those  Purchasers a party to that certain  Debenture  and Warrant
               Purchase  Agreement,  dated  on or  about  March  10,  1998  (the
               "Purchase Agreement"),  shall have the right to vote as part of a
               single class with all holders of the Company's Common Stock on an
               as-converted basis;

          each as provided in Section 9.14 of the Purchase Agreement, and

     (ii) to ratify  the  appointment  of three  (3)  persons  nominated  to the
          Company's Board of Directors at the request of the Purchasers pursuant
          to Section 9.8 of the Purchase Agreement.

     A copy of the Purchase Agreement is attached hereto and made a part hereof.

Dated March ______, 1998



                                        -------------------------------------
                                        Shareholder



                                        -------------------------------------
                                        Print Name