for all patients only nonsustained vt was initiated during control study , while sustained vt occurred during drug testing with disopyramide ( 2 patients ) , quinidine ( 2 patients ) , amiodarone ( 4 patients ) , and encainide ( 7 patients ) , although spontaneous arrhythmias appeared well-controlled prior to repeat testing .
C0034414
quinidine
C0003811
arrhythmias