CodeineAcetaminophenAnalgesics, Non-NarcoticAntitussive AgentsHydrocodoneMorphine DerivativesDrug-Induced Liver InjuryIminesSubstance Abuse DetectionDrug OverdoseNarcoticsMorphineAntipyreticsAnalgesics, OpioidIbuprofenGas Chromatography-Mass SpectrometryHydromorphoneAnti-Inflammatory Agents, Non-SteroidalNalorphinePapaverDealkylationLiver Failure, AcuteOpiumTramadolDebrisoquinAnalgesicsDextropropoxypheneCytochrome P-450 CYP2D6Administration, RectalAntidotesEthylmorphineOxymorphoneGlutathioneCoughLiverDiphenoxylateAdministration, OralPain, PostoperativeCytochrome P-450 CYP2E1OxycodonePhenacetinTonsillectomyAlanine TransaminaseDextromethorphan