Nilestriol
Nilestriol (INNTooltip International Nonproprietary Name) (brand name Wei Ni An; developmental code name LY-49825), also known as nylestriol (USANTooltip United States Adopted Name, BANTooltip British Approved Name), is a synthetic estrogen which was patented in 1971[1] and is marketed in China.[4] Nilestriol is a prodrug of ethinylestriol, and is a more potent estrogen in comparison.[4] It is described as a slowly-metabolized, long-acting estrogen and derivative of estriol.[5][6] Nilestriol was assessed in combination with levonorgestrel for the potential treatment of postmenopausal osteoporosis, but this formulation ultimately was not marketed.This drug article relating to the genito-urinary system is a stub.