Four women used polysiloxane contraceptive rings (CVR) impregnated with d-Norgestrel
and estradiol for contraceptive purposes. The treatment was given in three-week cycles …

OBJECTIVE: The study was conducted to assess levonorgestrel (LNG) serum levels
achieved after a single administration of two different doses of Carraguard vaginal gel …

This study was undertaken to investigate the effects on ovarian function, bleeding control
and plasma levels of d-norgestrel (d-Ng) in women using Silastic intravaginal rings …

Objectives: The objective of the study is to evaluate the effects of levonorgestrel transferred
through breast milk on thyroid stimulating hormone (TSH) and luteinizing hormone (LH) …

Plasma levels of levonorgestrel were determined by radioimmunoassay in eleven
apparently healthy women belonging to the low socio-economic status, after the oral …

A thin levonorgestrel-silicone layer was applied on the capsule of the cauda epididymis of
male rats to study a model for post-testicular male contraception. The effect of different …

An accurate sensitive method for the assay of D-norgestrel in human milk is described. The
steroid is isolated from an ether extract of milk by Sephadex LH 20 chromatography in the …

The pharmacokinetics and pharmacodynamics of levonorgestrel (LNG) were studied in six
women given 0.75 mg LNG orally for seven days during the periovulatory phase of the …

Today, 60 percent of the world's population live in countries where first trimester abortion is
legal either for social and economic reasons, or on request (Zimmerman 1976). Abortion has …

Experimental IUDs releasing only 10 μg levonorgestrel per day and established copper-
releasing IUDs (Nova-T) were inserted in 60 women in connection with legal first-trimester …