Adrenergic AntagonistsAdrenergic alpha-AntagonistsPrazosinYohimbineAdrenergic beta-2 Receptor AntagonistsHeartReceptors, Adrenergic, alphaAdrenergic alpha-AgonistsAdrenergic beta-AntagonistsAdrenergic alpha-1 Receptor AntagonistsClonidineIdazoxanPropanolaminesReceptors, AdrenergicAdrenergic alpha-2 Receptor AntagonistsHeart RateButoxaminePropranololNorepinephrineAdrenergic AgonistsAdrenergic beta-1 Receptor AntagonistsTimololReceptors, Adrenergic, alpha-2MedetomidineDioxanesPhentolamineEpinephrineAdrenergic alpha-1 Receptor AgonistsReceptors, Adrenergic, betaDoxazosinReceptors, Adrenergic, alpha-1PhenylephrineDose-Response Relationship, DrugIsoproterenolAdrenergic beta-AgonistsAdrenergic alpha-2 Receptor AgonistsRats, Sprague-DawleyRats, WistarHeart FailureImidazolesRats, Inbred StrainsHeart DiseasesHeart TransplantationHormone AntagonistsHeart Defects, CongenitalBlood PressureDopamine AntagonistsNeurokinin-1 Receptor AntagonistsExcitatory Amino Acid AntagonistsNarcotic AntagonistsHistamine H2 AntagonistsFetal HeartInterleukin 1 Receptor Antagonist ProteinMuscarinic AntagonistsHeart ValvesPurinergic P1 Receptor AntagonistsHeart AtriaGABA AntagonistsPiperidinesHistamine H1 AntagonistsHistamine AntagonistsNicotinic AntagonistsMyocardiumAdenosine A2 Receptor AntagonistsPurinergic P2 Receptor AntagonistsTime FactorsHeart BlockAngiotensin Receptor AntagonistsSerotonin 5-HT3 Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsAdenosine A1 Receptor AntagonistsMyocardial ContractionLeukotriene AntagonistsHemodynamicsHeart Arrest, InducedHeart Function TestsGuinea PigsGABA-A Receptor AntagonistsMyocardial IschemiaReceptors, EndothelinCalciumDisease Models, AnimalCalcium Channel BlockersRadioligand AssayMyocytes, CardiacCells, CulturedHistamine H3 AntagonistsDogsBenzazepinesReceptors, SerotoninBinding, CompetitivePyridinesPerfusionSignal TransductionReceptors, N-Methyl-D-AspartateReceptor, Endothelin ACoronary DiseaseSulfonamidesSerotonin 5-HT1 Receptor AntagonistsDrug Interactions