title: Letter: Duration of action of beta-adrenergic blocking drugs.
mesh_terms: D000526:Alprenolol / Q000627:therapeutic use; D000818:Animals; D002986:Clinical Trials as Topic; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D010919:Placebos; D013015:Sotalol / Q000097:blood / Q000494:pharmacology* / Q000627:therapeutic use; D013610:Tachycardia / Q000188:drug therapy; D013997:Time Factors; D014316:Tritium
chemical_list: D010919:Placebos; D014316:Tritium; D000526:Alprenolol; D013015:Sotalol