PMID: 39816Jan 1, 1978

Postcoital contraception

International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics
A A Yuzpe


The evolution of postcoital contraception has led to the development of emergency measures to be used following a single unprotected act of intercourse and to ongoing methods, such as the administration of a contraceptive steroid agent following every coital exposure. In emergency situations, the most commonly employed hormonal steroids are the synthetic, conjugated and natural estrogens, administered in large doses for five days. Recently, a combination of an estrogen and a progestin has been employed for the same purpose. A copper-bearing intrauterine device (IUD), inserted within seven days of coitus, has also been utilized with success. Progestins alone have been utilized as an ongoing method of postcoital contraception. Failure rates have been found to vary with the dosage, the specific progestin employed and the frequency of intercourse. The major role of postcoital contraception in the developed world appears to be as an emergency measure. Ease of availability, a high degree of efficacy and a low incidence of side effects are essential for patient and physician acceptance.


Mar 1, 1976·American Journal of Obstetrics and Gynecology·D MunzJ Simon
Oct 1, 1974·American Journal of Epidemiology·S D Targum, N H Wright
Jul 1, 1974·Contraception·L K Kuchera
Jan 1, 1973·American Journal of Obstetrics and Gynecology·J M Morris, G Van Wagenen
Jul 15, 1973·American Journal of Obstetrics and Gynecology·H Lehfeldt
Sep 15, 1970·American Journal of Obstetrics and Gynecology·K E Bauman


Nov 6, 2007·Clinical Obstetrics and Gynecology·Rebecca H Allen, Alisa B Goldberg
Aug 8, 2007·Maternal and Child Health Journal·Kimberley A GoldsmithJodi A Lapidus
Apr 11, 1985·The New England Journal of Medicine

Related Concepts

First Intercourse
Male Contraception
Emergency Contraceptives
Contraceptives, Postcoital, Hormonal
Contraceptives, Postcoital, Synthetic
Drug Combinations
Embryonic Structures, Mammalian
Progynon C

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