since ca-mediated electrophysiological phenomena seem to be important in the generation of various arrhythmias , we quantitatively compared the effects of quinidine , disopyramide , procainamide , lidocaine , propranolol , and etafenone , a new coronary vasodilator with antiarrhythmic properties , on na and ca channels in normal and depolarized guinea pig atria .
C0003811
arrhythmias
C0034414
quinidine