title: Peptide contraception in women. Inhibition of ovulation by chronic intranasal LRH agonist therapy.
abstract: Seventy-one healthy female volunteers used the LRH superagonist D-Ser(TBU) 6-EA10-LRH (buserelin) for contraception during 3-26 months. One daily dose of 200-600 micrograms was administered by the nasal route. No pregnancy occurred during the 628 treatment months. The bleeding pattern varied from fairly regular menstrual bleedings (n = 26) to oligomenorrhoea (n = 27) and amenorrhoea (n = 18). No severe or dysfunctional bleeding disturbances were observed. No signs of hyperplastic changes of the endometrium were found in 57 endometrial biopsies. After cessation of the long-term treatment normal ovulation and menstruation returned after 41.3 days, on average. Thus, intranasal administration of an LRH agonist for inhibition of ovulation is a promising new contraceptive method for women.
mesh_terms: D000281:Administration, Intranasal; D000328:Adult; D002064:Buserelin / Q000009:adverse effects / Q000494:pharmacology*; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D008598:Menstruation / Q000187:drug effects; D010060:Ovulation / Q000187:drug effects*; D011374:Progesterone / Q000097:blood
chemical_list: D011374:Progesterone; D004958:Estradiol; D002064:Buserelin