The stems of Gymnema sylvestre (Retz.) Schult is the drying part aboveground. The leaves of the plant have the function of diabetes, reduce blood fat, anticaries and antisweet which had been used as diabetes drugs. But researches on the plant's stems about chemical constituents and pharmacology haven't been reported. The studies will made system research on chemical constituents and pharmacological action for plant rational exploitation.Triterpene, saponin, steroids, organic acid, phenols and saccharides we...