AlprenololAmino AlcoholsSympatholyticsAdrenergic beta-AntagonistsPindololPractololPropranololPentaerythritol TetranitrateReceptors, AdrenergicReceptors, Adrenergic, betaIsoproterenolOxprenololAdrenergic beta-AgonistsPropanolaminesDihydroalprenololNadololEpinephrinePentobarbitalAdrenergic beta-2 Receptor AntagonistsAnuraReceptors, Adrenergic, beta-2Adenylate CyclaseRespiratory Physiological PhenomenaAnesthesia, IntravenousCatecholaminesNorepinephrine