a limited number of comparisons with other antiarrhythmic drugs indicate that the antiarrhythmic efficacy of propafenone is superior or similar to that of quinidine , disopyramide and tocainide , and comparable to that of lignocaine ( lidocaine ) , flecainide and metoprolol against ventricular arrhythmias and a smaller number of atrial arrhythmias .
C0003195
antiarrhythmic
C0033429
propafenone