procainamide HCl

procainamide HCl (prōkā´nmīd),

n brand names: Procan SR, Promine, Pronestyl;
drug class: antidysrhythmic (Class IA);
action: depresses excitability of cardiac muscle to electrical stimulation and slows conduction in atrium, bundle of His, and ventricle;
uses: premature ventricular contraction, atrial fibrillation, paroxysmal atrial tachycardia, atrial dysrhythmias, ventricular tachycardia.