IsoproterenolAdrenergic beta-AgonistsReceptors, Adrenergic, betaGuanidinePropranololCyclic AMPTrimethylsilyl CompoundsSympathomimeticsAdenylate CyclaseReceptors, AdrenergicColforsinMyocardiumAdrenergic beta-AntagonistsMyocardial ContractionGuanidinesReceptors, Adrenergic, beta-2Parotid GlandDihydroalprenololPropanolaminesDose-Response Relationship, DrugReceptors, Adrenergic, beta-1EpinephrineCardiotonic AgentsNorepinephrinePindololDogsPhenylephrineBucladesineIodocyanopindololAdrenergic AgonistsCyclic AMP-Dependent Protein KinasesCatecholaminesAdrenergic alpha-AgonistsAlprenololTabletsProtein DenaturationHeart RateCalciumStimulation, Chemical8-Bromo Cyclic Adenosine MonophosphateRats, Sprague-DawleyRats, WistarKineticsGuinea PigsPhenethylaminesMyocytes, Cardiac1-Methyl-3-isobutylxanthineGTP-Binding Protein alpha Subunits, GsAdrenergic beta-1 Receptor AgonistsTime FactorsHeart VentriclesCells, CulturedPhentolamineRabbitsCarbacholDiphenylacetic AcidsReceptors, Adrenergic, beta-3Rats, Inbred StrainsChemistry, PharmaceuticalCardiomegalyReceptors, Adrenergic, alphaBlood PressureTiloroneDrug StabilityDosage FormsLipolysisAdenosineAdrenergic AgentsAdrenergic beta-1 Receptor AntagonistsProcaterolFood AdditivesDelayed-Action PreparationsTracheaPapillary MusclesAdrenergic beta-3 Receptor AgonistsAdrenergic beta-2 Receptor AntagonistsAdrenergic beta-2 Receptor AgonistsRimantadineMeat-Packing IndustryMethoxamineAmantadineCalcium Channels, L-TypeMuscle RelaxationIsoxsuprineNimustinePerfusionTiapamil HydrochlorideProline-Rich Protein DomainsEnzyme InhibitorsSolubilityCholera ToxinAtropinePiperidinesDrug InteractionsDibenzazepinesVentricular FunctionPharmaceutical SolutionsAcetylcholineHeart AtriaPhosphorylation