What is "benzestrol"

n. A therapeutic estrogen.

Benzestrol ( INN, BAN) (brand names Chemestrogen, Ocestrol, Octestrol, Octoestrol, Octofollin) is a synthetic, non-steroidal estrogen of the stilbestrol group that was formerly used medically but has since been discontinued. The stilbestrol estrogens, the most well-known of which is diethylstilbestrol (DES) were used extensively in the mid-1900s and were finally banned by the FDA due to them causing tumors in the children of women who used them.