Typhaneoside is possibly the main active component in the bioactive fraction of Shaofu Zhuyu decoction, Shaofu Zhuyu decoction may have direct inhibitory effects on the contractility of the mice uterus. It has an inhibitory effect on the proliferation of human umbilical arterial smooth muscle cells(HUASMC) with a wide range of effective dose but the effect is started slowly. Typhaneoside is a glycoside and a member of flavonoids.