Result:YTD has significant analgesic action by general application and its action is more powerful than that of the sole Asarum or the sole verapamil,and has dose-dependence.

• 结果:牙痛酊全身给药有显著镇痛作用,比其配方组分(细辛和维拉帕米)的单方制剂作用强,有一定协同效应。并观察到牙痛酊对热板致痛的镇痛作用呈一定剂量依赖性。