title: The action of beta-receptor antagonists on intracellular cardiac potentials.
mesh_terms: D000083:Acetanilides / Q000494:pharmacology; D000200:Action Potentials / Q000187:drug effects*; D000318:Adrenergic beta-Agonists / Q000494:pharmacology; D000605:Amino Alcohols / Q000494:pharmacology; D000818:Animals; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D011433:Propranolol / Q000494:pharmacology*; D011817:Rabbits; D013565:Sympatholytics / Q000494:pharmacology; D013566:Sympathomimetics / Q000494:pharmacology*
chemical_list: D000083:Acetanilides; D000318:Adrenergic beta-Agonists; D000605:Amino Alcohols; D013565:Sympatholytics; D013566:Sympathomimetics; D011433:Propranolol