The effect of a new beta-blocking agent, levo-bunolol, on exercise-induced or augmented ventricular arrhythmias.
D000284:Administration, Oral; D000328:Adult; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D006801:Humans; D002040:Levobunolol / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D010919:Placebos
D010919:Placebos; D002040:Levobunolol