to test this hypothesis , the effects on ouabain-induced arrhythmia of intraarterial pretreatment with the calcium entry blockers nifedipine , flunarizine , verapamil , diltiazem , and bepridil , the calcium entry promotor bay k 8644 , and cacl2 were compared with those of the currently applied digitalis antidotes phenytoin and lidocaine in urethane-anesthetized ( 1.5 g/kg i.p . ) guinea pigs .
C0003811
arrhythmia
C0023660
lidocaine