title: Beta-blocking agents in cardiac arrhythmias.
mesh_terms: D000083:Acetanilides / Q000627:therapeutic use; D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000368:Aged; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D001281:Atrial Fibrillation / Q000188:drug therapy; D005117:Cardiac Complexes, Premature / Q000188:drug therapy; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000494:pharmacology; D011802:Quinidine / Q000494:pharmacology; D013565:Sympatholytics / Q000627:therapeutic use*; D013610:Tachycardia / Q000188:drug therapy
chemical_list: D000083:Acetanilides; D000319:Adrenergic beta-Antagonists; D000889:Anti-Arrhythmia Agents; D013565:Sympatholytics; D011433:Propranolol; D011802:Quinidine