we aimed to compare acceptability of levonorgestrel with the yuzpe regimen among iranian women based on their side-effects and resulting changes in the amount and pattern of menses.five hundred twenty nine participants aged 15-49 having regular menses and one act of unprotected intercourse within 72 h were included in the double-blind, controlled trial in 2006-2007 and randomly assigned into ln...

Knowledge and use of emergency contraception world-wide is extremely limited. Recent research has demonstrated that levonorgestrel alone is at least as effective as the Yuzpe regimen and is much better tolerated. Levonorgestrel is likely to become the method of choice in the early 21st century. Mifepristone is highly effective even at doses which are not abortifacient. Efficacy cannot be calcul...

-the; A major reduction in the number of unwanted pregnancies and pregnancy terminations could be achieved if an effective method of emergency pregnancy interception (postcoital contraception) was readily available to women. This policy stakmnt describes a method which is the Yuzpe 2 + 2 regimen; the use of two tablets of estradioI/levonorgestrel, with an antiemetic, followed by a second identi...

vidual from conception through embryonic and fetal period to birth,” where conception is defined as “the beginning of pregnancy, usually taken to be the instant that a spermatozoon enters an ovum and forms a viable zygote.”5 In a previous review6 of the mechanism of action of OCs, we concluded that they act at times via a postfertilization effect, that is, after fertilization and prior to the c...

The purpose of this study was to provide revised estimates of the effectiveness of the Yuzpe method of emergency contraception. Through a literature search, we identified eight studies that present the number of women treated and outcome of treatment by cycle day of unprotected intercourse relative to expected day of ovulation. Using five sets of external estimates of conception probabilities b...

Correspondence: Serena Dovey Magee Women’s Hospital, 300 Halket Street, Suite 2309, Pittsburgh, PA 15213, USA Tel +1 412 641 1204 Fax +1 412 641 1133 Email [email protected] Abstract: The term emergency contraception (EC) refers to utilizing a medication or placing a copper intrauterine device within a short time interval after unprotected intercourse in order to prevent pregnancy. Established m...

OBJECTIVE To compare the physiologic effects of vaginally and orally administered emergency contraception. DESIGN Prospective, open-label, crossover study. SETTING University research center. PATIENT(S) Nine regularly menstruating volunteers. INTERVENTION(S) Five subjects received 1,000 microg of levonorgestrel with 200 microg of ethinyl E2 (twice the standard Yuzpe regimen dose) vagina...

Emergency contraception is used to prevent pregnancy after a coital act not adequately protected by a regular method of contraception. In contrast to early medical abortion, emergency contraception prevents a pregnancy from starting and does not disrupt an established pregnancy. The most commonly used approaches consist of two oral doses of contraceptive steroids. The levonorgestrel-only regime...