the derivatives of the dihydropyridine series , sodium salt of 2,6-dimethyl-3,5-diethoxycarbonyl-1,4-dihydronicotinic acid ( drug i ) and disodium salt of 2,6-dimethyl-1,4-dihydropyridine-3,6-bis-carbonyloxyacetic acid ( drug ii ) , reduce or completely prevent ( depending on the dose ) arrhythmias of different types ( disturbances of atrioventricular conduction , extrasystoles , heart fibrillation ) induced by vasopressin , calcium chloride and strophantine .
C0003811
arrhythmias
C0340464
extrasystoles