low-dose ( 7 mg/kg per day ) disopyramide administration to arrhythmic chagasic patients decreased the frequency of ventricular extrasystoles in 4 of 17 patients ( 24 % ) and suppressed most complex ventricular arrhythmias in 12 of 15 patients ( 80 % ) .
C0012702
disopyramide
C0151636
ventricular extrasystoles