AspirinAnti-Inflammatory Agents, Non-SteroidalPlatelet Aggregation InhibitorsCyclooxygenase InhibitorsTiclopidineThromboxane B2IbuprofenPlatelet AggregationSalicylatesCyclooxygenase 2 InhibitorsPlatelet Function TestsNaproxenDrug Therapy, CombinationDiclofenacGastrointestinal HemorrhageCyclooxygenase 1Blood PlateletsProstaglandin-Endoperoxide SynthasesSodium SalicylateStomach UlcerGastrointestinal DiseasesFibrinolytic AgentsAcetaminophenHemorrhageCyclooxygenase 2Asthma, Aspirin-InducedAnticoagulantsWarfarinTablets, Enteric-CoatedPeptic Ulcer HemorrhageRisk FactorsDose-Response Relationship, DrugPeptic UlcerDouble-Blind MethodBleeding TimePlatelet ActivationGastric MucosaThromboxanesThromboxane A2FlurbiprofenThrombosisDipyridamolePiroxicamProspective StudiesTreatment OutcomeDrug HypersensitivityLipoxinsProstaglandinsEtodolacMyocardial InfarctionDinoprostoneDrug ResistanceTime FactorsIndomethacinPyrazolesDrug InteractionsSulfinpyrazoneProton Pump InhibitorsSulfonamidesReye SyndromeStrokeKetoprofenAnti-Ulcer AgentsSulfones