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  <xs:element id="anip_DerivativePercentagePremium" abstract="false" name="DerivativePercentagePremium" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_PaymentsForCappedCallTransactions" abstract="false" name="PaymentsForCappedCallTransactions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_DerivativeInstrumentNumberOfSharesCoveredByTheDerivativeInstrumentUponConversion" abstract="false" name="DerivativeInstrumentNumberOfSharesCoveredByTheDerivativeInstrumentUponConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="anip_OneSupplierMember" abstract="true" name="OneSupplierMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_AcquiredANDAsIntangibleAssetsMember" abstract="true" name="AcquiredANDAsIntangibleAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_ReclassificationOfAssetsOnCompletionOfProjectAndLaunchOfRelatedProductsMember" abstract="true" name="ReclassificationOfAssetsOnCompletionOfProjectAndLaunchOfRelatedProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_ProductRightsMember" abstract="true" name="ProductRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_MarketingAndDistributionRightsMember" abstract="true" name="MarketingAndDistributionRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_FiniteLivedIntangibleAssetsExpectedAmortizationYearFiveAndAfter" abstract="false" name="FiniteLivedIntangibleAssetsExpectedAmortizationYearFiveAndAfter" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_PIPESharesMember" abstract="true" name="PIPESharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_CommonStockNumberOfVotesPerShare" abstract="false" name="CommonStockNumberOfVotesPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_CommonStockExchangePerShare" abstract="false" name="CommonStockExchangePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="anip_CommonStockConversionPrice" abstract="false" name="CommonStockConversionPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="anip_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" abstract="false" name="TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="anip_PreferredStockConversionPeriodMinimum" abstract="false" name="PreferredStockConversionPeriodMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="anip_ThresholdNumberOfTradingDays" abstract="false" name="ThresholdNumberOfTradingDays" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_NumberOfConsecutiveTradingDays" abstract="false" name="NumberOfConsecutiveTradingDays" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_PercentageOfConversionPrice" abstract="false" name="PercentageOfConversionPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_EmployeeStockPurchasePlanTwoThousandAndSixteenMember" abstract="true" name="EmployeeStockPurchasePlanTwoThousandAndSixteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_StockIncentivePlanMember" abstract="true" name="StockIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_EmployeesAndConsultantsMember" abstract="true" name="EmployeesAndConsultantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NonEmployeeDirectorStockOptionMember" abstract="true" name="NonEmployeeDirectorStockOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_PerformanceBasedRestrictedStockUnitsMember" abstract="true" name="PerformanceBasedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_MarketPerformanceBasedRestrictedStockUnitsMember" abstract="true" name="MarketPerformanceBasedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NumberOfAnnualInstallments" abstract="false" name="NumberOfAnnualInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAwardedPerVestingPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAwardedPerVestingPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="anip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfAwards" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfAwards" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMaximumPotentialToVestPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMaximumPotentialToVestPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimateNumberOfSharesPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimateNumberOfSharesPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTargetPercentageAchieved" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTargetPercentageAchieved" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_UnapprovedProductsMember" abstract="true" name="UnapprovedProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NovitiumMember" abstract="true" name="NovitiumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NumberOfProductsMarketedWithoutApprovedNDAsOrANDAs" abstract="false" name="NumberOfProductsMarketedWithoutApprovedNDAsOrANDAs" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_LossContingencyDamagesSoughtRoyaltyPercentage" abstract="false" name="LossContingencyDamagesSoughtRoyaltyPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_PaymentTypeAxis" abstract="true" name="PaymentTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="anip_PaymentTypeDomain" abstract="true" name="PaymentTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_A2026MilestoneRevenuePaymentMember" abstract="true" name="A2026MilestoneRevenuePaymentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_A2027MilestoneRevenuePaymentMember" abstract="true" name="A2027MilestoneRevenuePaymentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_AlimeraSciencesIncMember" abstract="true" name="AlimeraSciencesIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_ContingentValueRightsAgreementMember" abstract="true" name="ContingentValueRightsAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_AccruedLicensorPaymentsMember" abstract="true" name="AccruedLicensorPaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_CGOncologyMember" abstract="true" name="CGOncologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_ContingentConsiderationMilestonePaymentMultiplier" abstract="false" name="ContingentConsiderationMilestonePaymentMultiplier" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="anip_ContingentConsiderationMilestonePaymentDenominator" abstract="false" name="ContingentConsiderationMilestonePaymentDenominator" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_ContingentConsiderationMilestonePaymentContingentValueRightsAgreementBusinessDays" abstract="false" name="ContingentConsiderationMilestonePaymentContingentValueRightsAgreementBusinessDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="anip_ContingentConsiderationClassifiedAsEquityIncreaseDecreaseInFairValueDisclosure" abstract="false" name="ContingentConsiderationClassifiedAsEquityIncreaseDecreaseInFairValueDisclosure" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_CollaborativeArrangementIncreaseDecreaseInFairValueOfPaymentsDue" abstract="false" name="CollaborativeArrangementIncreaseDecreaseInFairValueOfPaymentsDue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_AchievementOfMilestonesPaymentPeriod" abstract="false" name="AchievementOfMilestonesPaymentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="anip_CollaborativeArrangementOwedNetProfitGeneratedBySalesPercentage" abstract="false" name="CollaborativeArrangementOwedNetProfitGeneratedBySalesPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_CollaborativeArrangementNetProfitGeneratedBySalesMaximumOwed" abstract="false" name="CollaborativeArrangementNetProfitGeneratedBySalesMaximumOwed" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_CollaborativeArrangementPaymentPeriod" abstract="false" name="CollaborativeArrangementPaymentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="anip_CollaborativeArrangementPercentageOfNetProfitGeneratedBySalesQuarterlyPaymentDueAccrued" abstract="false" name="CollaborativeArrangementPercentageOfNetProfitGeneratedBySalesQuarterlyPaymentDueAccrued" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_ProfitBasedMilestonePaymentsMember" abstract="true" name="ProfitBasedMilestonePaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_EyePointAgreementsMemberMember" abstract="true" name="EyePointAgreementsMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_CollaborativeArrangementUpFrontPayment" abstract="false" name="CollaborativeArrangementUpFrontPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_CollaborativeArrangementAdditionalQuarterlyPayment" abstract="false" name="CollaborativeArrangementAdditionalQuarterlyPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_CollaborativeArrangementRoyaltyPercentageToPayNetSales" abstract="false" name="CollaborativeArrangementRoyaltyPercentageToPayNetSales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="anip_CollaborativeArrangementRoyaltyPayableOnRevenueThreshold" abstract="false" name="CollaborativeArrangementRoyaltyPayableOnRevenueThreshold" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_AccruedLicensorPaymentsNoncurrentFairValueDisclosure" abstract="false" name="AccruedLicensorPaymentsNoncurrentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_ScitusMember" abstract="true" name="ScitusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_EsjayMember" abstract="true" name="EsjayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_SThreeMember" abstract="true" name="SThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NurayChemicalPrivateLimitedMember" abstract="true" name="NurayChemicalPrivateLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_SSPharmaLLCMember" abstract="true" name="SSPharmaLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NumberOfExecutivesAndFoundersInEmploymentAgreement" abstract="false" name="NumberOfExecutivesAndFoundersInEmploymentAgreement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_RoyaltyPaymentsToBePaid" abstract="false" name="RoyaltyPaymentsToBePaid" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="anip_GenericsAndOtherMember" abstract="true" name="GenericsAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_RareDiseaseAndBrandsMember" abstract="true" name="RareDiseaseAndBrandsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_NumberOfEstablishedBrandProducts" abstract="false" name="NumberOfEstablishedBrandProducts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_NumberOfProductFamilies" abstract="false" name="NumberOfProductFamilies" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="anip_ChadGassertMember" abstract="true" name="ChadGassertMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_StephenP.CareyMember" abstract="true" name="StephenP.CareyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_StephenP.CareyCommonStockVestedMember" abstract="true" name="StephenP.CareyCommonStockVestedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_ThomasJ.HaugheyMember" abstract="true" name="ThomasJ.HaugheyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="anip_MuthusamyShanmugamMember" abstract="true" name="MuthusamyShanmugamMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
