Noretynodrel

Noretynodrel (INN), or norethynodrel (USAN, BAN), also known as 17α-ethinyl-δ5(10)-19-nortestosterone or as 5(10)-norethisterone, is a steroidal progestin of the 19-nortestosterone group and the Δ5(10)-isomer of norethisterone. Noretynodrel was introduced in 1957 in Enovid, a combination formulation of noretynodrel and mestranol, for the treatment of gynecological and menstrual disorders. A few years later, in May 1960, Enovid was also approved as the first oral contraceptive.

Noretynodrel

Noretynodrel (INN), or norethynodrel (USAN, BAN), also known as 17α-ethinyl-δ5(10)-19-nortestosterone or as 5(10)-norethisterone, is a steroidal progestin of the 19-nortestosterone group and the Δ5(10)-isomer of norethisterone. Noretynodrel was introduced in 1957 in Enovid, a combination formulation of noretynodrel and mestranol, for the treatment of gynecological and menstrual disorders. A few years later, in May 1960, Enovid was also approved as the first oral contraceptive.