Noun
noretynodrel (uncountable)
Alternative form of norethynodrel
First-generation progestins include noretynodrel, norethisterone, norethisterone acetate, and etynodiol diacetate… These compounds have the lowest potency and relatively short half-lives. Source: Internet
Frank B. Colton at Searle in Skokie, Illinois had synthesized the orally highly active progestins noretynodrel (an isomer of norethisterone) in 1952 and norethandrolone in 1953. Source: Internet
In July 1961, Searle finally began marketing Enovid 5 mg (5 mg noretynodrel and 75 µg mestranol) to physicians as a contraceptive. Source: Internet