Nilestriol (INN) (notam nomen Wei Ni An; developmental code name LY-49825), et quae nylestriol (USAN, BAN), is a synthetic estrogen which was patented in 1971 and is marketed in China.It is the 3-cyclopentyl aether of ethinylestriol, et etiam cyclopentyl ethinylestrioli cognominatur (EE3CPE).Nilestriol is a prodrug of ethinylestriol, et potentior estrogen in comparatione. Dicitur lente metabolized, long-agens estrogen et derivativum estriol.Nilestriol aestimatum est in compositione cum levonorgestrel pro potential tractatione osteoporosis postmenopausalis, but this formulation ultimately was not marketed
