A synthetic progestational agent with actions similar to those of PROGESTERONE. This racemic or (+-)-form has about half the potency of the levo form (LEVONORGESTREL). Norgestrel is used as a contraceptive, ovulation inhibitor, and for the control of menstrual disorders and endometriosis.

Synonyms: 3J8Q1747Z2, 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17alpha)-(+-)-, 0, Norgestrel, Ovrette, DL-Norgestrel, Wy 3707, Postinor, DL Norgestrel, Neogest, Wy3707, Wy-3707