The major constituents of thomson kudzuvine root are flavonic derivatives such as puerarin, daidzein ,daidzin and so on.

• 其中葛根是豆科植物野葛(Pueraria Lebata (willd) Ohwi)的根，主要含黄酮类成分如葛根素、大豆苷元、大豆苷等，具有改善冠状动脉、脑和外周循环、降低血压、降低心肌耗氧量等药理作用。