

<!--XBRL Document Modified with Ez-Viewer Version 1.0.5.8 on Saturday, March 02, 2013 02:44:46 AM -->
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<link:definition>002 - Statement - CONSOLIDATED BALANCE SHEETS</link:definition>
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<link:definition>003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
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<link:definition>004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPRENESIVE INCOME (LOSS)</link:definition>
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<link:definition>005 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</link:definition>
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<link:definition>006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
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<link:definition>008 - Disclosure - DESCRIPTION OF BUSINESS</link:definition>
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<link:definition>009 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
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<link:definition>010 - Disclosure - LICENSE, DEVELOPMENT, AND COMMERCIALIZATION AGREEMENT</link:definition>
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<link:definition>011 - Disclosure - PROPERTY, PLANT AND EQUIPMENT</link:definition>
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<link:definition>012 - Disclosure - ACCRUED EXPENSES</link:definition>
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<link:definition>014 - Disclosure - COMMON STOCK WARRANTS</link:definition>
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<link:definition>015 - Disclosure - INCOME TAXES</link:definition>
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<link:definition>016 - Disclosure - EMPLOYEE BENEFIT PLANS</link:definition>
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<link:definition>017 - Disclosure - COMMITMENTS AND CONTINGENCIES</link:definition>
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<link:definition>018 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)</link:definition>
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<link:definition>019 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
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<link:definition>020 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
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<link:definition>021 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)</link:definition>
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<link:definition>022 - Disclosure - ACCRUED EXPENSES (Tables)</link:definition>
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<link:definition>023 - Disclosure - INVESTMENTS IN MARKETABLE SECURITIES (Tables)</link:definition>
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<link:definition>024 - Disclosure - INCOME TAXES (Tables)</link:definition>
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<link:definition>025 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables)</link:definition>
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<link:definition>026 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)</link:definition>
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<link:definition>027 - Disclosure - Estimated lives of major classification of depreciable assets - (Detail)</link:definition>
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<link:definition>028 - Disclosure - Summary Of Significant Accounting Policies - Additional Information (Detail)</link:definition>
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<link:definition>029 - Disclosure - Computation of Basic and Diluted Earnings (Loss) Per Share - (Detail)</link:definition>
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<link:roleType roleURI="http://www.acurapharm.com/role/NonCashShareBasedCompensationExpenseDetail" id="NonCashShareBasedCompensationExpenseDetail">
<link:definition>030 - Disclosure - Non-Cash Share-Based Compensation Expense - (Detail)</link:definition>
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<link:roleType roleURI="http://www.acurapharm.com/role/LicenseDevelopmentAndCommercializationAgreementAdditionalInformationDetail" id="LicenseDevelopmentAndCommercializationAgreementAdditionalInformationDetail">
<link:definition>031 - Disclosure - License Development and Commercialization Agreement - Additional Information (Detail)</link:definition>
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<link:definition>032 - Disclosure - Property Plant And Equipment - (Detail)</link:definition>
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<link:roleType roleURI="http://www.acurapharm.com/role/PropertyPlantAndEquipmentAdditionalInformationDetail" id="PropertyPlantAndEquipmentAdditionalInformationDetail">
<link:definition>033 - Disclosure - Property Plant and Equipment - Additional Information (Detail)</link:definition>
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<link:roleType roleURI="http://www.acurapharm.com/role/AccruedExpensesDetail" id="AccruedExpensesDetail">
<link:definition>034 - Disclosure - Accrued Expenses (Detail)</link:definition>
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<link:roleType roleURI="http://www.acurapharm.com/role/SummaryOfInvestmentInMarketableSecuritiesDetail" id="SummaryOfInvestmentInMarketableSecuritiesDetail">
<link:definition>035 - Disclosure - Summary Of Investment In Marketable Securities (Detail)</link:definition>
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<link:definition>036 - Disclosure - Available For Sale Securities Continuous Unrealized Loss Position Fair Value (Detail)</link:definition>
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<link:definition>037 - Disclosure - Assets Measured At Fair Value or Disclosed At Fair Value On A Recurring Basis (Detail)</link:definition>
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<link:roleType roleURI="http://www.acurapharm.com/role/InvestmentInMarketableSecuritiesAdditionalInformationDetail" id="InvestmentInMarketableSecuritiesAdditionalInformationDetail">
<link:definition>038 - Disclosure - Investment In Marketable Securities - Additional Information (Detail)</link:definition>
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<link:definition>039 - Disclosure - Common Stock Warrants - Additional Information (Detail)</link:definition>
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<link:definition>040 - Disclosure - Provision for Income Taxes (Detail)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>041 - Disclosure - Income Taxes - Additional Information (Detail)</link:definition>
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<link:definition>042 - Disclosure - Components of Our Deferred Tax Assets (Detail)</link:definition>
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<link:definition>043 - Disclosure - Employee Benefit Plans - Additional Information (Detail)</link:definition>
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<link:definition>044 - Disclosure - Stock Option Award Activity (Detail)</link:definition>
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<link:definition>045 - Disclosure - Summary of Information about Non Vested Stock Options (Detail)</link:definition>
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<link:definition>046 - Disclosure - Assumptions Used in Black-Scholes Model to Determine Fair Value for Stock Option Awards Granted (Detail)</link:definition>
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<link:definition>047 - Disclosure - Summary of RSU Plan (Detail)</link:definition>
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<link:definition>048 - Disclosure - Commitments and Contingencies - Additional Information (Detail)</link:definition>
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<link:definition>049 - Disclosure - Schedule of Selected Quarterly Financial Data (Detail)</link:definition>
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<link:definition>013 - Disclosure - INVESTMENTS IN MARKETABLE SECURITIES</link:definition>
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<import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd"/>
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd"/>
<import namespace="http://xbrl.sec.gov/dei/2012-01-31" schemaLocation="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
<import namespace="http://fasb.org/us-types/2012-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2012/elts/us-types-2012-01-31.xsd"/>
<element name="DocumentDocumentandEntityInformationAbstract" id="acur_DocumentDocumentandEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ProgramFeeRevenue" id="acur_ProgramFeeRevenue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CashlessMember" id="acur_CashlessMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="OptionNonCashExerciseOneMember" id="acur_OptionNonCashExerciseOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRequisiteServicePeriodRecognitionShares" id="acur_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRequisiteServicePeriodRecognitionShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SharesWithheldForTaxShares" id="acur_SharesWithheldForTaxShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SharesWithheldForTaxValue" id="acur_SharesWithheldForTaxValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="StockIssuedDuringPeriodSharesStockWarrantsExercised" id="acur_StockIssuedDuringPeriodSharesStockWarrantsExercised" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="StockIssuedDuringPeriodValueStockWarrantsExercised" id="acur_StockIssuedDuringPeriodValueStockWarrantsExercised" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CashPaidDuringPeriodForAbstract" id="acur_CashPaidDuringPeriodForAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="RestrictedStockUnitMember" id="acur_RestrictedStockUnitMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="EquityBasedEmployeeCompensationGrantedShares" id="acur_EquityBasedEmployeeCompensationGrantedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CommonStockWithheldShares" id="acur_CommonStockWithheldShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="EquityIssuanceCostsWithheld" id="acur_EquityIssuanceCostsWithheld" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SharesWithheldToSatisfyEmployeesTaxWithholdingShares" id="acur_SharesWithheldToSatisfyEmployeesTaxWithholdingShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SupplementalTaxWithholding" id="acur_SupplementalTaxWithholding" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CommonStockIssuedShares" id="acur_CommonStockIssuedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DescriptionOfBusinessDisclosureAbstract" id="acur_DescriptionOfBusinessDisclosureAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ResearchAndDevelopmentDisclosureAbstract" id="acur_ResearchAndDevelopmentDisclosureAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ResearchAndDevelopmentDisclosureTextBlock" id="acur_ResearchAndDevelopmentDisclosureTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ScheduleOfPropertyPlantAndEquipmentNetCarryingValueTableTextBlock" id="acur_ScheduleOfPropertyPlantAndEquipmentNetCarryingValueTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="InvestmentsMarketableSecuritiesAbstract" id="acur_InvestmentsMarketableSecuritiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ScheduleOfDeferredTaxAssetsTableTextBlock" id="acur_ScheduleOfDeferredTaxAssetsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SummaryOfInformationAboutNonVestedStockOptionsDisclosureAbstract" id="acur_SummaryOfInformationAboutNonVestedStockOptionsDisclosureAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureEstimatedLivesOfMajorClassificationOfDepreciableAssetsAbstract" id="acur_DisclosureEstimatedLivesOfMajorClassificationOfDepreciableAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ScientificEquipmentMember" id="acur_ScientificEquipmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ComputerHardwareAndSoftwareMember" id="acur_ComputerHardwareAndSoftwareMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" id="acur_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="LicenseFeesMember" id="acur_LicenseFeesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" id="acur_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ProceedsFromNonRefundableUpfrontFeesForResearchAndDevelopmentArrangmentContractToPerformForOther" id="acur_ProceedsFromNonRefundableUpfrontFeesForResearchAndDevelopmentArrangmentContractToPerformForOther" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ProceeddsFromResearchAndDevelopmentContingentconsiderationPayment" id="acur_ProceeddsFromResearchAndDevelopmentContingentconsiderationPayment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ResearchAndDevelopmentArrangementContractToPerformForOthersExpensesRecivable" id="acur_ResearchAndDevelopmentArrangementContractToPerformForOthersExpensesRecivable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureComputationOfBasicAndDilutedEarningsLossPerShareAbstract" id="acur_DisclosureComputationOfBasicAndDilutedEarningsLossPerShareAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="RsusMember" id="acur_RsusMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="EarningPerShareBasicNumeratorAbstract" id="acur_EarningPerShareBasicNumeratorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="EarningsPerShareDilutedNumeratorAbstract" id="acur_EarningsPerShareDilutedNumeratorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CommonStockIssuableAbstract" id="acur_CommonStockIssuableAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureNonCashShareBasedCompensationExpenseAbstract" id="acur_DisclosureNonCashShareBasedCompensationExpenseAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureLicenseDevelopmentAndCommercializationAgreementAdditionalInformationAbstract" id="acur_DisclosureLicenseDevelopmentAndCommercializationAgreementAdditionalInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="LicenseDevelopmentAndCommercializationAgreementTable" id="acur_LicenseDevelopmentAndCommercializationAgreementTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="PivotalPhaseIiiClinicalStudyMember" id="acur_PivotalPhaseIiiClinicalStudyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="FdasApprovalMember" id="acur_FdasApprovalMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="LicenseDevelopmentAndCommercializationAgreementLineItems" id="acur_LicenseDevelopmentAndCommercializationAgreementLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ProceedsFromReimbursmentOfResearchAndDevelopmentExpensesArrangmentContractToPerformForOther" id="acur_ProceedsFromReimbursmentOfResearchAndDevelopmentExpensesArrangmentContractToPerformForOther" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ResearchAndDevelopmentContingentConsiderationPaymentLicencnseFees" id="acur_ResearchAndDevelopmentContingentConsiderationPaymentLicencnseFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ResearchAndDevelopmentContingentConsiderationPaymentAdditionalUpfrontFees" id="acur_ResearchAndDevelopmentContingentConsiderationPaymentAdditionalUpfrontFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ResearchAndDevelopmentContingentConsiderationPaymentSalesMilestonePaymentDescription" id="acur_ResearchAndDevelopmentContingentConsiderationPaymentSalesMilestonePaymentDescription" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PercentageOfRoyalty" id="acur_PercentageOfRoyalty" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PercentageOfRoyaltyDeductToSettleThirdPartyClaim" id="acur_PercentageOfRoyaltyDeductToSettleThirdPartyClaim" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PercentageOfRoyaltyOfRoyaltyPayableMinimum" id="acur_PercentageOfRoyaltyOfRoyaltyPayableMinimum" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PriorWrittenNoticePeriodToTerminationOfContractualArrangements" id="acur_PriorWrittenNoticePeriodToTerminationOfContractualArrangements" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PeriodOfCommerciallyLaunchedOfProductAfterRegulatoryApproval" id="acur_PeriodOfCommerciallyLaunchedOfProductAfterRegulatoryApproval" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosurePropertyPlantAndEquipmentAdditionalInformationAbstract" id="acur_DisclosurePropertyPlantAndEquipmentAdditionalInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureAccruedExpensesAbstract" id="acur_DisclosureAccruedExpensesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AccountsPayableAndAccruedLiabilitiesTable" id="acur_AccountsPayableAndAccruedLiabilitiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="AccountsPayableAndAccruedLiabilitiesLineItems" id="acur_AccountsPayableAndAccruedLiabilitiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AccruedOtherProfessionalFeesCurrent" id="acur_AccruedOtherProfessionalFeesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AccruedOtherContractManufactureServicesCurrent" id="acur_AccruedOtherContractManufactureServicesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="OtherAccruedTaxesCurrent" id="acur_OtherAccruedTaxesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="InvestmentInMarketableSecuritiesAbstract" id="acur_InvestmentInMarketableSecuritiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="MarketableSecuritiesTable" id="acur_MarketableSecuritiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="PooledInvestmentFundMember" id="acur_PooledInvestmentFundMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="InvestmentInMarketableSecuritiesLineItems" id="acur_InvestmentInMarketableSecuritiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTable" id="acur_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="CorporateBondsMember" id="acur_CorporateBondsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
 
<element name="AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueLineItems" id="acur_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AssetsMeasuredAtFairValueOrDisclosedAtFairValueOnRecurringBasisAbstract" id="acur_AssetsMeasuredAtFairValueOrDisclosedAtFairValueOnRecurringBasisAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="AssetsMeasuredAtFairValueOrDisclosedAtFairValueOnRecurringBasisTable" id="acur_AssetsMeasuredAtFairValueOrDisclosedAtFairValueOnRecurringBasisTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="AssetsMeasuredAtFairValueOrDisclosedAtFairValueOnRecurringBasisLineItems" id="acur_AssetsMeasuredAtFairValueOrDisclosedAtFairValueOnRecurringBasisLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="InvestmentInMarketableSecurities-AdditionalInformationDetailAbstract" id="acur_InvestmentInMarketableSecurities-AdditionalInformationDetailAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="InvestmentInMarketableSecuritiesTable" id="acur_InvestmentInMarketableSecuritiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="DisclosureCommonStockWarrantsAdditionalInformationAbstract" id="acur_DisclosureCommonStockWarrantsAdditionalInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ExercisePriceOfWarrants" id="acur_ExercisePriceOfWarrants" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ClassOfWarrantOrRightExpirationDate" id="acur_ClassOfWarrantOrRightExpirationDate" type="us-types:dateStringItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ProvisionForIncomeTaxesTable" id="acur_ProvisionForIncomeTaxesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="ProvisionForIncomeTaxesLineItems" id="acur_ProvisionForIncomeTaxesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="IncomeTaxDisclosureTable" id="acur_IncomeTaxDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="IncomeTaxDisclosureLineItems" id="acur_IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="OperatingLossCarryForwardsExpirationYear" id="acur_OperatingLossCarryForwardsExpirationYear" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ComponentsOfDeferredTaxAssetsTable" id="acur_ComponentsOfDeferredTaxAssetsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="ComponentsOfDeferredTaxAssetsLineItems" id="acur_ComponentsOfDeferredTaxAssetsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="EmployeeBenefitPlansDisclosureTable" id="acur_EmployeeBenefitPlansDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="FourZeroOneKAndProfitSharingPlanMember" id="acur_FourZeroOneKAndProfitSharingPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="EmployeeBenefitPlansDisclosureLineItems" id="acur_EmployeeBenefitPlansDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="MaximumBasicContributionPercentagePerEmployeeOnAnnualEarnings" id="acur_MaximumBasicContributionPercentagePerEmployeeOnAnnualEarnings" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DescriptionOfContributionForProfitSharingPlan" id="acur_DescriptionOfContributionForProfitSharingPlan" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ShareBasedCompensationShareBasedPaymentAwardsCashlessExercises" id="acur_ShareBasedCompensationShareBasedPaymentAwardsCashlessExercises" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="TaxesWithheldOnIssuanceOfStockBasedAwards" id="acur_TaxesWithheldOnIssuanceOfStockBasedAwards" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" id="acur_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="StatutoryMinimumPayrollTaxes" id="acur_StatutoryMinimumPayrollTaxes" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="RestrictedStockUnitsSalePrice" id="acur_RestrictedStockUnitsSalePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="RestrictedStockUnitsExchangedInSatisfactionOfWithholdingTaxObligations" id="acur_RestrictedStockUnitsExchangedInSatisfactionOfWithholdingTaxObligations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="NumberOfSharesIssuedOnCashlessExercises" id="acur_NumberOfSharesIssuedOnCashlessExercises" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureStockOptionAwardActivityAbstract" id="acur_DisclosureStockOptionAwardActivityAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="StockOptionPlanMember" id="acur_StockOptionPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SummaryOfInformationAboutNonVestedStockOptionsDisclosureTable" id="acur_SummaryOfInformationAboutNonVestedStockOptionsDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="OptionsNotExercisableMember" id="acur_OptionsNotExercisableMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="SummaryOfInformationAboutNonVestedStockOptionsDisclosureLineItems" id="acur_SummaryOfInformationAboutNonVestedStockOptionsDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureAssumptionsUsedInBlackScholesModelToDetermineFairValueForStockOptionAwardsGrantedAbstract" id="acur_DisclosureAssumptionsUsedInBlackScholesModelToDetermineFairValueForStockOptionAwardsGrantedAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="VestedRestrictedStockUnitsMember" id="acur_VestedRestrictedStockUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsDistributedInPeriod" id="acur_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsDistributedInPeriod" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="DisclosureCommitmentsAndContingenciesAdditionalInformationAbstract" id="acur_DisclosureCommitmentsAndContingenciesAdditionalInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CommitmentsAndContingenciesDisclosureTable" id="acur_CommitmentsAndContingenciesDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="RestrictedStockUnitAwardPlanMember" id="acur_RestrictedStockUnitAwardPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ElectionsMember" id="acur_ElectionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="OtherElectionsMember" id="acur_OtherElectionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="LocationAxis" id="acur_LocationAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/> 
<element name="PennsylvaniaStateMember" id="acur_PennsylvaniaStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="NewJerseyStateMember" id="acur_NewJerseyStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CaliforniaStateMember" id="acur_CaliforniaStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="FinancialAdvisorMember" id="acur_FinancialAdvisorMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="CommitmentsAndContingenciesDisclosureLineItems" id="acur_CommitmentsAndContingenciesDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="NumberOfLawsuitsFiled" id="acur_NumberOfLawsuitsFiled" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="NumberOfLawsuitsServed" id="acur_NumberOfLawsuitsServed" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PercentageOfFeeAssumedOnExerciseOfWarrantsInUnitOffering" id="acur_PercentageOfFeeAssumedOnExerciseOfWarrantsInUnitOffering" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="ScheduleOfQuarterlyFinancialInformationTable" id="acur_ScheduleOfQuarterlyFinancialInformationTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/> 
<element name="ScheduleOfQuarterlyFinancialInformationLineItems" id="acur_ScheduleOfQuarterlyFinancialInformationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="InvestmentsMarketableSecuritiesTableTextBlock" id="acur_InvestmentsMarketableSecuritiesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/> 
<element name="PalatineLllinoisMember" id="acur_PalatineLllinoisMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true"/>
</schema>





