Table 1.

Effects of aconitine and antiarrhythmic drugs on the APD in rat ventricular myocytes.

Group	RP(mV)	OS(mV)	APD50 (ms)	APD90(ms)
Ctr	-72.5±5.98	43.2±3.59	105.4±7.71	154.2±7.02
Aco 1 µM	-70.5±3.44	46.7±2.34	178.4±16.43 **	2376.0±23.22 **
Aco1 µM +Qui	-64.8±9.71	29.9±9.31	208.8±83.38**	316.15±67.39**a
Aco1 µM +Ver	-72.4±2.68	32.4±5.09	105.6±10.81a	147.7±32.38a

^*p<0.05 vs control ^**p<0.01 vs control ^ap<0.01 vs aconitine (RP: resting potential; OS: overshoot)