AcetaminophenAspirinAnalgesics, Non-NarcoticMedication ErrorsMedication AdherenceAnti-Inflammatory Agents, Non-SteroidalDrug-Induced Liver InjuryDrug OverdoseIminesAntipyreticsIbuprofenPlatelet Aggregation InhibitorsMedication ReconciliationMedication SystemsMedication Systems, HospitalLiver Failure, AcuteCyclooxygenase InhibitorsNonprescription DrugsDouble-Blind MethodAnalgesicsAdministration, RectalAntidotesDrug Therapy, CombinationHydrocodoneDose-Response Relationship, DrugThromboxane B2PhenacetinPrescription DrugsGlutathioneTreatment OutcomeSalicylatesLiverDrug PrescriptionsTiclopidineDrug LabelingCytochrome P-450 CYP2E1Alanine TransaminaseSelf MedicationPatient ComplianceAcetylcysteinePlatelet AggregationProspective StudiesDrug InteractionsRisk FactorsTime FactorsCyclooxygenase 1Analgesics, OpioidPolypharmacyDrug TherapyDrug-Related Side Effects and Adverse ReactionsFeverCyclooxygenase 2 InhibitorsUnited StatesPsychotropic DrugsPain MeasurementAdministration, OralNaproxenAminophenolsDrug Administration ScheduleDrug UtilizationProstaglandin-Endoperoxide SynthasesPain, PostoperativeRetrospective StudiesPainBenzoquinonesPlatelet Function TestsPharmaceutical PreparationsFollow-Up StudiesAntipsychotic AgentsCohort StudiesCodeineAntihypertensive AgentsBlood PlateletsNecrosisDrug HypersensitivityCross-Over StudiesPoisoningHepatocytesQuestionnairesPharmacistsClinical Pharmacy Information SystemsDrug CostsDiclofenacFibrinolytic AgentsAsthmaAspartate AminotransferasesAcetanilidesTabletsSodium SalicylateAnticoagulantsMedical Order Entry SystemsPhysician's Practice PatternsRisk AssessmentDrug CombinationsAntidepressive AgentsWarfarinGlucuronatesCross-Sectional StudiesTramadolHemorrhage