CodeineAspirinAntitussive AgentsMorphine DerivativesHydrocodoneSubstance Abuse DetectionNarcoticsMorphinePlatelet Aggregation InhibitorsAnti-Inflammatory Agents, Non-SteroidalGas Chromatography-Mass SpectrometryNalorphinePapaverDealkylationAnalgesics, OpioidHydromorphoneOpiumDebrisoquinDextropropoxypheneCytochrome P-450 CYP2D6EthylmorphineOxymorphoneAcetaminophenCoughDiphenoxylateOxycodoneTiclopidineDextromethorphanThromboxane B2