以前我们曾对中药瓦松Cotyledon Fimbriatus的强心作用进行了较为深入的研究。在此基础上,本文又对其药理作用进行了全面系统的研究。研究结果表明:该药对小白鼠有明显的镇静作用;对家兔呼吸有轻度兴奋作用,给药后呼吸运动振幅较给药前增加20.7％(n=10,P<0.05);对家兔血压和肠管平滑肌则无明显作用。小白鼠腹腔注射的半数致死量为11.48g/kg(折合生药)。 In the past, we conducted in-depth studies on the cardiac function of Chinese medicine Vaisong Cotyledon Fimbriatus. On this basis, this article also conducted a comprehensive and systematic study of its pharmacological effects. The results of the study showed that the drug had a significant sedative effect on mice; it had mild stimulatory effects on rabbit respiration, and respiratory motion amplitude increased 20.7% (n=10, P<0.05) after administration compared with that before administration; Rabbit blood pressure and intestinal smooth muscle had no significant effect. The median lethal dose of mice was 11.48g/kg (equivalent to crude drug).