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  <xs:element id="cpix_PurchasesOfIntangibleAssetsIncurredButNotYetPaid" abstract="false" name="PurchasesOfIntangibleAssetsIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cpix_RevenueRecognitionCumulativeUpfrontPayment" abstract="false" name="RevenueRecognitionCumulativeUpfrontPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cpix_FiniteLivedIntangibleAssetsUsefulLivesTextual" abstract="false" name="FiniteLivedIntangibleAssetsUsefulLivesTextual" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cpix_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkInProcessInventoryValidationVials" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkInProcessInventoryValidationVials" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cpix_ManufacturingAgreementsNumberOfPrimarySuppliersForEachProduct" abstract="false" name="ManufacturingAgreementsNumberOfPrimarySuppliersForEachProduct" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cpix_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkInProcessInventoryUnlabeledVials" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkInProcessInventoryUnlabeledVials" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cpix_NetDeferredTaxAssetsGross" abstract="false" name="NetDeferredTaxAssetsGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cpix_IfetrobanClinicalMember" abstract="true" name="IfetrobanClinicalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
</xs:schema>
