active drug or placebo was continued for 7 days or until ( a ) detection of `` '' warning arrhythmias ' requiring i.v . lignocaine intervention ( greater than 5 for 7 days or until ( a ) detection of `` '' warning arrhythmias ' requiring i.v . lignocaine intervention ( greater than 5 premature ventricular contractions ( pvcs ) /min , r on t pvcs , multifocal pvcs , bigeminal pvcs , ventricular tachycardia or ventricular fibrillation ) or ( b ) onset of exclusion criteria .
C0003811
g arrhythmi
C0023660
. lignocai