U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Status:
US Previously Marketed
Source:
NORINYL 1+50 21-DAY by ACTAVIS LABS UT INC
(1964)
Source URL:
First approved in 1957
Source:
Enovid by Searle
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



Mestranol is a biologically inactive prodrug of estrogen agonist ethinylestradiol. Enovid, a combination of mestranol and noretynodrel, was first oral contraceptive approved by FDA in 1960.