Blood PlateletsPlatelet AggregationPlatelet CountPlatelet AdhesivenessPlatelet Membrane GlycoproteinsPlatelet Factor 4Platelet TransfusionPlatelet Activating FactorPlatelet Glycoprotein GPIIb-IIIa ComplexPlatelet Function TestsPlatelet Glycoprotein GPIb-IX ComplexThrombinAdenosine DiphosphateHormone AntagonistsAntigens, Human PlateletDose-Response Relationship, DrugDopamine AntagonistsThrombocytopeniaExcitatory Amino Acid AntagonistsNeurokinin-1 Receptor AntagonistsFibrinogenNarcotic AntagonistsBleeding TimeHistamine H2 AntagonistsP-SelectinSerotoninMegakaryocytesInterleukin 1 Receptor Antagonist ProteinThromboxane A2Muscarinic AntagonistsPurinergic P2 Receptor AntagonistsThrombosisvon Willebrand FactorPlatelet Membrane Glycoprotein IIbPiperidinesHistamine H1 AntagonistsGABA AntagonistsRats, Sprague-DawleyPurinergic P1 Receptor AntagonistsPlatelet Factor 3Histamine AntagonistsAspirinCollagenCalciumReceptors, Purinergic P2Y12Nicotinic AntagonistsAdenosine A2 Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsBlood CoagulationSerotonin 5-HT3 Receptor AntagonistsHemostasisTime FactorsBinding, CompetitiveRats, WistarPlatelet Storage Pool DeficiencyRabbitsReceptors, ThromboxaneAdenosine A1 Receptor AntagonistsCells, CulturedAngiotensin Receptor AntagonistsRistocetinLeukotriene AntagonistsOligopeptidesKineticsThrombastheniaAdrenergic alpha-AntagonistsThrombopoiesisAdrenergic alpha-2 Receptor AntagonistsProstaglandin Endoperoxides, SyntheticSignal TransductionThromboxanesAdrenergic Antagonists15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidGABA-A Receptor AntagonistsPurpura, ThrombocytopenicRadioligand AssayCrotalid VenomsCytoplasmic GranulesGuinea PigsEpinephrineArachidonic AcidsEpoprostenolHistamine H3 AntagonistsAntibodies, MonoclonalReceptors, SerotoninPiperazinesPyridinesBiphenyl CompoundsDrug InteractionsPeptide FragmentsBlood Coagulation FactorsReceptors, EndothelinMice, Inbred C57BLAdrenergic beta-2 Receptor AntagonistsThrombocytosisThrombopoietinCalcium Channel BlockersPlatelet-Rich PlasmaMolecular Sequence Data