Wiktionary
medrogestone
n. A progestin.
Wikipedia
Medrogestone
Medrogestone ( INN, USAN, BAN) (brand names Colpro, Colpron, Colprone), or metrogestone, also known as 6,17α-dimethyl-6-dehydroprogesterone, is a steroidal progestin that is used in hormone replacement therapy, in the treatment of breast and endometrial cancers, and in other conditions. It was developed in the 1960s, and appears to have been marketed since at least 1966. The drug is available widely throughout Europe, and is also marketed in Canada, Argentina, and Hong Kong, though notably not in the United States. As of 2010, medrogestone is no longer available in Germany or Austria.