title: Effect of acebutolol and propranolol on premature ventricular complexes.
abstract: A double-blind, randomized study comparing the efficacy of intravenous acebutolol with propranolol on frequent premature ventricular complexes (PVCs) in 24 patients is reported. Frequent PVCs were abolished or reduced by 75% or more in 10 of 12 patients (83%) given acebutolol and in 10 of 12 patients (83%) given propranolol. The therapeutic effect of acebutolol lasted for at least 1 hr in 4 of 12 patients (33%), for at least 3.5 hr in 3 of 12 patients (25%), and for at least 4 hr in 2 of 12 patients (17%). The effect of propranolol lasted for at least 1 hr in 6 of 12 patients (50%), for at least 3.5 hr in 4 of 12 patients (33%), and for at least 4 hr in 4 of 12 patients (33%). Hence, intravenous acebutolol and propranolol were equally effective.
mesh_terms: D000070:Acebutolol / Q000627:therapeutic use*; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use*; D011897:Random Allocation; D013997:Time Factors
chemical_list: D000070:Acebutolol; D011433:Propranolol