ventricular ectopic beats produced by intravenous injection of adrenaline in anaesthetized dogs respired with halothane were abolished by ko 1173 , 0.6 +/- 0.1 mg/kg , phenytoin , 1.1 +/- 0.3 mg/kg and procainamide , 4.1 +/- 1.8 mg/kg.3 .
C0151636
ventricular ectopic beats
C0033216
procainamide