[Effects of neferine on the 45Ca-influx and efflux induced by activation of alpha-1 adrenoceptor of vascular smooth muscle].

Experiments have shown that in the vascular smooth muscle neferine (Nef) can markedly reduce the 45Ca-influx induced by phenylephrine, but does not affect the 45Ca-influx induced by mmol/L KCl, which is almost completely inhibited by nifedipine. Neferine does not inhibit 45Ca-efflux.