DL-Goitrin, also called (R, S)- report by the spring, consists of the epigoitrin (reported by the R- Spring) and the spring (-S- reported by spring), and the two mutually isomers, and the mixture is the ingredient of Radix^[1]. In Vitro: The active ingredients according to the report table Spring is the anti-influenza virus, according to the spring report not only without the active, more reported having certain toxicity^[1].