AspirinPlatelet Aggregation InhibitorsSalicylatesAnti-Inflammatory Agents, Non-SteroidalCyclooxygenase InhibitorsPlatelet AggregationProstanoic AcidsThromboxanesThromboxane B2TiclopidineBlood PlateletsDipyroneSalicylic AcidSodium SalicylatePlatelet Function TestsFibrinolytic AgentsProstaglandinsAcetaminophenThromboxane A2Prostaglandin-Endoperoxide SynthasesIndomethacinAnticoagulantsDipyridamoleAntipyreticsGastrointestinal HemorrhagePiroxicamProstaglandins EBleeding TimeAcetic AcidDose-Response Relationship, DrugCyclooxygenase 1Drug HypersensitivityStomach Diseases6-Ketoprostaglandin F1 alphaDrug InteractionsTime FactorsThrombosisEpoprostenolTretinoinDinoprostonePhenacetinArachidonic AcidsThromboembolismArachidonic AcidDouble-Blind MethodIbuprofenGastric MucosaUrsodeoxycholic AcidRandom AllocationCyclooxygenase 2 InhibitorsAnalgesicsCerebrovascular DisordersPlatelet AdhesivenessWarfarinDiclofenacCyclooxygenase 2Treatment OutcomeAnti-Inflammatory AgentsStomach UlcerIschemic Attack, TransientAdenosine DiphosphateDrug Therapy, CombinationPlacebosGastrointestinal DiseasesHemorrhagePeptic UlcerPlatelet ActivationCholagogues and CholereticsIndicators and ReagentsAnalgesics, Non-NarcoticDrug ResistancePyrazolesHydrogen-Ion ConcentrationProspective StudiesRabbitsCross-Over StudiesClinical Trials as TopicMyocardial InfarctionSulfonamidesRisk FactorsGentisatesHeparinStrokeCardiovascular DiseasesChromatography, High Pressure LiquidCanadaPainSerotoninCells, CulturedChenodeoxycholic AcidKineticsHydrochloric AcidNitrous AcidThioctic AcidNitric OxideCollagenAcidsThrombinDisease Models, AnimalOkadaic Acid