| norethynodrel | <chemical> (17 alpha)-17-hydroxy-19-norpregn-5(10)-en-20-yn-3-one. A synthetic progestational hormone with actions and uses similar to those of progesterone. It has been used in the treatment of functional uterine bleeding and endometriosis. As a contraceptive, it has usually been administered in combination with mestranol. Pharmacological action: contraceptives, oral, synthetic, progestational hormones, synthetic. Chemical name: 19-Norpregn-5(10)-en-20-yn-3-one, 17-hydroxy-, (17alpha)- (12 Dec 1998) |
|---|