AspirinAnti-Inflammatory Agents, Non-SteroidalPlatelet Aggregation InhibitorsCyclooxygenase InhibitorsMedication AdherenceMedication ErrorsCyclooxygenase 2 InhibitorsInflammationIbuprofenNaproxenProstaglandin-Endoperoxide SynthasesCyclooxygenase 2Thromboxane B2TiclopidineCyclooxygenase 1DiclofenacSalicylatesDrug Therapy, CombinationAnti-Inflammatory AgentsMedication ReconciliationMedication SystemsPlatelet AggregationAcetaminophenMedication Systems, HospitalDose-Response Relationship, DrugRisk FactorsSulfonamidesTreatment OutcomeGastrointestinal DiseasesPlatelet Function TestsGastrointestinal HemorrhageIndomethacinPyrazolesBlood PlateletsDinoprostoneDrug PrescriptionsTime FactorsProspective StudiesSodium SalicylateDouble-Blind MethodTumor Necrosis Factor-alphaStomach UlcerCells, CulturedDrug UtilizationSelf MedicationLipopolysaccharidesAsthma, Aspirin-InducedKetoprofenFibrinolytic AgentsDrug InteractionsAnticoagulantsAnalgesics, Non-NarcoticEtodolacMice, Inbred C57BLPatient ComplianceProstaglandinsSulfonesWarfarinTablets, Enteric-CoatedPiroxicamInflammation MediatorsAnalgesicsSulindacGastric MucosaUnited StatesHemorrhageLactonesCytokinesChronic DiseaseCase-Control StudiesPeptic UlcerIsoenzymesNonprescription DrugsPrescription DrugsRetrospective StudiesCardiovascular DiseasesFollow-Up StudiesPainSemecarpusArthritisDrug TherapyCohort StudiesDrug HypersensitivityDrug CostsDisease Models, AnimalPeptic Ulcer HemorrhagePolypharmacyColitisAdministration, OralThiazinesBleeding TimePlatelet ActivationOsteoarthritisArthritis, RheumatoidNeutrophilsRandomized Controlled Trials as TopicRisk AssessmentThromboxanesThrombosisDrug Administration Schedule