Receptors, Adrenergic, alphaAdrenergic beta-1 Receptor AntagonistsPrazosinPhenoxybenzaminePropranololAdrenergic beta-AntagonistsAdrenergic alpha-AntagonistsReceptors, Adrenergic, beta-2NorepinephrineBlood PressureHeart RateReceptors, AdrenergicDogsReceptors, Adrenergic, beta-1Receptors, Adrenergic, alpha-2Receptors, Adrenergic, alpha-1Receptors, Adrenergic, betaAdrenergic alpha-AgonistsReceptors, Adrenergic, beta-3Adrenergic alpha-1 Receptor AntagonistsAdrenergic beta-2 Receptor AntagonistsAdrenergic beta-2 Receptor AgonistsYohimbineAdrenergic beta-AgonistsAdrenergic AntagonistsIsoproterenolReceptor, Endothelin APropanolaminesTetrazolesAngiotensin Receptor AntagonistsAdrenergic alpha-2 Receptor AntagonistsEpinephrineAdrenergic AgonistsRats, Sprague-DawleyReceptors, EndothelinAdrenergic beta-3 Receptor AgonistsAdrenergic alpha-2 Receptor AgonistsClonidineAngiotensin II Type 1 Receptor BlockersIdazoxanAdrenergic beta-1 Receptor AgonistsAdrenergic alpha-1 Receptor AgonistsReceptor, Angiotensin, Type 1IodocyanopindololDose-Response Relationship, DrugDihydroalprenololDioxanesPhenylpropionatesPhenylephrineRadioligand AssaySignal TransductionPindololalpha 1-AntitrypsinLosartan