title: Intranasal gonadotropin-releasing hormone agonist as a contraceptive agent.
abstract: The stimulatory luteinising hormone-releasing hormone (LRH) analogue D-Ser(TBU)6-EA10-LRH was administered intranasally once daily to twenty-seven regularly menstruating women to determine its efficacy as a contraceptive agent. Ovulation was inhibited during all but 2 of the 89 treatment months. The failures were due to initial technical problems with the nasal spray. Twenty-one of the twenty-seven women had slight menstrual-like anovulatory bleeds during the 3--6 month trial. The remaining six women were amenorrhoeic. Ovulatory menstrual cycles rapidly returned after discontinuation of treatment. There were no serious side-effects.
mesh_terms: D000281:Administration, Intranasal; D000328:Adult; D000568:Amenorrhea / Q000139:chemically induced; D003270:Contraceptive Agents / Q000008:administration & dosage* / Q000494:pharmacology; D004341:Drug Evaluation; D004958:Estradiol / Q000097:blood; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000494:pharmacology; D006728:Hormones / Q000008:administration & dosage* / Q000494:pharmacology; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D010060:Ovulation / Q000187:drug effects; D011374:Progesterone / Q000097:blood; D013268:Stimulation, Chemical
chemical_list: D003270:Contraceptive Agents; D006728:Hormones; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone