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        <link:definition>154 - Statement - EQUITY FINANCINGS - Additional Information (Detail)</link:definition>

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        <link:usedOn>link:definitionLink</link:usedOn>

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      <link:roleType roleURI="http://acurapharm.com/role/CommonStockWarrantsAdditionalInformationDetail" id="CommonStockWarrantsAdditionalInformationDetail">
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        <link:definition>157 - Disclosure - EMPLOYEE BENEFIT PLANS - Stock Option Award Activity (Detail)</link:definition>

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        <link:definition>159 - Disclosure - EMPLOYEE BENEFIT PLANS - Assumptions Used in Black-Scholes Model to Determine Fair Value for Stock Option Awards Granted (Detail)</link:definition>

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        <link:definition>164 - Disclosure - INCOME TAXES - Additional Information (Detail)</link:definition>

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        <link:definition>166 - Disclosure - COMMITMENTS AND CONTINGENCIES - Additional Information (Detail)</link:definition>

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  <element name="FairValueOfWarrantsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_FairValueOfWarrantsLineItems" />

  <element name="ScheduleOfInterestExpenseTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_ScheduleOfInterestExpenseTable" />

  <element name="ScheduleOfInterestExpenseLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ScheduleOfInterestExpenseLineItems" />

  <element name="InterestExpenseDebtDiscount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_InterestExpenseDebtDiscount" />

  <element name="FirstRevenueEventDoesNotOccursMemberMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_FirstRevenueEventDoesNotOccursMemberMember" />

  <element name="DebtDefaultLongTermDebtPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="acur_DebtDefaultLongTermDebtPercentage" />

  <element name="DebtinstrumentPrepaymentPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DebtinstrumentPrepaymentPercentage" />

  <element name="DebtConsultingPlacementFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_DebtConsultingPlacementFee" />

  <element name="ClassOfWarrantOrRightExpirationDate" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ClassOfWarrantOrRightExpirationDate" />

  <element name="DebtInstrumentCashMaintenance" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="acur_DebtInstrumentCashMaintenance" />

  <element name="EquityFinancingTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_EquityFinancingTable" />

  <element name="DisclosureOfCommonStockWarrantActivityAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DisclosureOfCommonStockWarrantActivityAbstract" />

  <element name="DisclosureCommonStockWarrantsAdditionalInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DisclosureCommonStockWarrantsAdditionalInformationAbstract" />

  <element name="StockOptionPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_StockOptionPlanMember" />

  <element name="TypeOfOfferingAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem" id="acur_TypeOfOfferingAxis" />

  <element name="ProceedsFromIssuanceOfCommonStockValueUnderMarketOfferings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="acur_ProceedsFromIssuanceOfCommonStockValueUnderMarketOfferings" />

  <element name="SummaryOfInformationAboutNonVestedStockOptionsDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_SummaryOfInformationAboutNonVestedStockOptionsDisclosureTable" />

  <element name="SummaryOfInformationAboutNonVestedStockOptionsDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_SummaryOfInformationAboutNonVestedStockOptionsDisclosureLineItems" />

  <element name="RsusMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_RsusMember" />

  <element name="VestedRestrictedStockUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_VestedRestrictedStockUnitsMember" />

  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsDistributedInPeriod" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsDistributedInPeriod" />

  <element name="EmployeeBenefitPlansDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_EmployeeBenefitPlansDisclosureTable" />

  <element name="RestrictedStockAwardPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_RestrictedStockAwardPlanMember" />

  <element name="FourZeroOneKAndProfitSharingPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_FourZeroOneKAndProfitSharingPlanMember" />

  <element name="FourNonEmployeeDirectorsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_FourNonEmployeeDirectorsMember" />

  <element name="SettledInCashMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_SettledInCashMember" />

  <element name="EmployeeBenefitPlansDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_EmployeeBenefitPlansDisclosureLineItems" />

  <element name="MaximumBasicContributionPercentagePerEmployeeOnAnnualEarnings" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_MaximumBasicContributionPercentagePerEmployeeOnAnnualEarnings" />

  <element name="ShareBasedCompensationShareBasedPaymentAwardsCashLessExercises" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ShareBasedCompensationShareBasedPaymentAwardsCashLessExercises" />

  <element name="TaxesWithheldOnIssuanceOfStockBasedAwards" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_TaxesWithheldOnIssuanceOfStockBasedAwards" />

  <element name="StatutoryMinimumPayrollTaxes" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_StatutoryMinimumPayrollTaxes" />

  <element name="NumberOfSharesIssuedOnCashlessExercises" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_NumberOfSharesIssuedOnCashlessExercises" />

  <element name="RestrictedStockUnitsExchangedInSatisfactionOfWithholdingTaxObligations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="acur_RestrictedStockUnitsExchangedInSatisfactionOfWithholdingTaxObligations" />

  <element name="ShareBasedCompensationShareBasedPaymentAwardsCashlessExercisesWithheldMinimumPayrollTaxes" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ShareBasedCompensationShareBasedPaymentAwardsCashlessExercisesWithheldMinimumPayrollTaxes" />

  <element name="ShareBasedCompensationArrangementShareBasedPaymentSharesReservedForFutureDistribution" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ShareBasedCompensationArrangementShareBasedPaymentSharesReservedForFutureDistribution" />

  <element name="ProvisionForIncomeTaxesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_ProvisionForIncomeTaxesTable" />

  <element name="ProvisionForIncomeTaxesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ProvisionForIncomeTaxesLineItems" />

  <element name="DeferredTaxAssetsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_DeferredTaxAssetsTable" />

  <element name="DeferredTaxAssetsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DeferredTaxAssetsLineItems" />

  <element name="IncomeTaxDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_IncomeTaxDisclosureTable" />

  <element name="FederalResearchAndDevelopmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_FederalResearchAndDevelopmentMember" />

  <element name="IndianaStateResearchAndDevelopmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_IndianaStateResearchAndDevelopmentMember" />

  <element name="IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_IncomeTaxDisclosureLineItems" />

  <element name="OperatingLossCarryForwardsExpirationYear" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_OperatingLossCarryForwardsExpirationYear" />

  <element name="DeferredTaxAssetsTaxCreditCarryForwardsResearchAndDevelopmentExpirationPeriod" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DeferredTaxAssetsTaxCreditCarryForwardsResearchAndDevelopmentExpirationPeriod" />

  <element name="DisclosureCommitmentsAndContingenciesAdditionalInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DisclosureCommitmentsAndContingenciesAdditionalInformationAbstract" />

  <element name="CommitmentsAndContingenciesDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_CommitmentsAndContingenciesDisclosureTable" />

  <element name="LocationAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem" id="acur_LocationAxis" />

  <element name="PennsylvaniaStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_PennsylvaniaStateMember" />

  <element name="NewJerseyStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_NewJerseyStateMember" />

  <element name="CaliforniaStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CaliforniaStateMember" />

  <element name="PalatineLllinoisMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_PalatineLllinoisMember" />

  <element name="NumberOfLawsuitsFiled" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="acur_NumberOfLawsuitsFiled" />

  <element name="NumberOfLawsuitsServed" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="acur_NumberOfLawsuitsServed" />

  <element name="ProvisionToReduceInventoryToNetRealizableValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_ProvisionToReduceInventoryToNetRealizableValue" />

  <element name="ProvisionForSalesReturns" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_ProvisionForSalesReturns" />

  <element name="AmortizationOfBondPremiumInMarketableSecurities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_AmortizationOfBondPremiumInMarketableSecurities" />

  <element name="ProceedsFromMarketOfferingOfShares" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_ProceedsFromMarketOfferingOfShares" />

  <element name="ProceedsFromRegisteredDirectOffering" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_ProceedsFromRegisteredDirectOffering" />

  <element name="CashPaidDuringPeriodForAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CashPaidDuringPeriodForAbstract" />

  <element name="CommonStockWithheldShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CommonStockWithheldShares" />

  <element name="EquityIssuanceCostsWithheld" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_EquityIssuanceCostsWithheld" />

  <element name="SharesWithheldToSatisfyEmployeesTaxWithholdingShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_SharesWithheldToSatisfyEmployeesTaxWithholdingShares" />

  <element name="SupplementalTaxWithholding" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="acur_SupplementalTaxWithholding" />

  <element name="CommonStockIssuedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CommonStockIssuedShares" />

  <element name="DescriptionOfBusinessDisclosureAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DescriptionOfBusinessDisclosureAbstract" />

  <element name="EarningsPerShareDilutedNumeratorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_EarningsPerShareDilutedNumeratorAbstract" />

  <element name="IncrementalCommonSharesAttributableToConversionOfCommonStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_IncrementalCommonSharesAttributableToConversionOfCommonStock" />

  <element name="IncrementalCommonSharesAttributableToRestrictedStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_IncrementalCommonSharesAttributableToRestrictedStock" />

  <element name="CommonStockWarrantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CommonStockWarrantsMember" />

  <element name="PriorToDecemberTwentySevenTwoThousandFifteenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_PriorToDecemberTwentySevenTwoThousandFifteenMember" />

  <element name="DebtIssuanceCostsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DebtIssuanceCostsAbstract" />

  <element name="DebtInstrumentIssuanceCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_DebtInstrumentIssuanceCosts" />

  <element name="AmortizationExpenseOfDebtInstrumentIssuanceCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="acur_AmortizationExpenseOfDebtInstrumentIssuanceCosts" />

  <element name="PlacementAgencyAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_PlacementAgencyAgreementMember" />

  <element name="SecuritiesPurchaseAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_SecuritiesPurchaseAgreementMember" />

  <element name="DescriptionForRepaymentOfPlacementAgent" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DescriptionForRepaymentOfPlacementAgent" />

  <element name="PlacementAgencyReimbursedForExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_PlacementAgencyReimbursedForExpenses" />

  <element name="EquityFinancingLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_EquityFinancingLineItems" />

  <element name="TypeOfOfferingDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_TypeOfOfferingDomain" />

  <element name="DirectOfferingMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DirectOfferingMember" />

  <element name="MarketOfferingMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_MarketOfferingMember" />

  <element name="ProceedsFromMilestonePaymentOnAgreement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_ProceedsFromMilestonePaymentOnAgreement" />

  <element name="LicenseDevelopmentAndCommercializationAgreementLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_LicenseDevelopmentAndCommercializationAgreementLineItems" />

  <element name="NexafedProductsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_NexafedProductsMember" />

  <element name="DistributedInCommonStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_DistributedInCommonStockMember" />

  <element name="InventoryValuationWrittenOffRawAndPackage" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_InventoryValuationWrittenOffRawAndPackage" />

  <element name="ScheduleOfQuarterlyFinancialInformationTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="acur_ScheduleOfQuarterlyFinancialInformationTable" />

  <element name="ScheduleOfQuarterlyFinancialInformationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ScheduleOfQuarterlyFinancialInformationLineItems" />

  <element name="InventoryValuationWrittenOffFinishedGoods" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="acur_InventoryValuationWrittenOffFinishedGoods" />

  <element name="ExcludedDilutiveSecuritiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_ExcludedDilutiveSecuritiesAbstract" />

  <element name="CommonStockIssuableAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CommonStockIssuableAbstract" />

  <element name="CommitmentsAndContingenciesDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="acur_CommitmentsAndContingenciesDisclosureLineItems" />
</schema>






