The composition for treatment and prevention of benign prostatic hyperplasia containing 3',4',7-trihydroxyisoflavone

摘要

invention testosterone 5 - reductase inhibitors (testosterone 5 -reductase inhibitors) relating to the 3 ' , 4 ' , 7- and tri -hydroxy- isoflavones wherein the testosterone 5 - reductase inhibitors containing, as an active ingredient .