Ethinylestradiol was first synthesized in 1938 by Hans Herloff Inhoffen and Walter Hohlweg at Schering. It was developed in an effort to create an estrogen with greater oral bioavailability. These properties were achieved by the substitution of an ethinyl group at carbon 17 of estradiol. Ethinylestradiol soon replaced mestranol in contraceptive pills.
Ethinylestradiol was granted FDA approval on 25 June 1943.
Ethinylestradiol is combined with other drugs for use as a contraceptive, premenstrual dysphoric disorder, moderate acne, moderate to severe vasomotor symptoms of menopause, prevention of postmenopausal osteoporosis.
CHUM - Notre-Dame Hospital, Montreal, Quebec, Canada
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University of Pennsylvania, Philadelphia, Pennsylvania, United States
Pritzker School of Medicine, Chicago, Illinois, United States
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