in doses of 6-23 mg/kg , the compounds under study prevented the development of the mixed type arrhythmia induced by intravenous injection of aconitine , prolonged the time of survival and prevented the animals ' death during intravenous injection of the arrhythmogenic doses of strophanthine , prolonged the refractory period , and increased the threshold of ventricular fibrillation in cats .
C0003811
arrhythmia
C0042510
ventricular fibrillation