What is a beta-blocker?
D000818:Animals; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D004983:Ethanolamines / Q000494:pharmacology / Q000627:therapeutic use; D006339:Heart Rate / Q000187:drug effects; D010275:Parasympathetic Nervous System / Q000187:drug effects; D011433:Propranolol / Q000494:pharmacology / Q000627:therapeutic use*; D051381:Rats; D011984:Sensory Receptor Cells / Q000187:drug effects; D013564:Sympathetic Nervous System / Q000187:drug effects
D004983:Ethanolamines; D011433:Propranolol