title: D-norgestrel combined with ethinyl oestradiol as an oral contraceptive.
mesh_terms: D000328:Adult; D001835:Body Weight / Q000187:drug effects; D003276:Contraceptives, Oral / Q000494:pharmacology*; D004997:Ethinyl Estradiol / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007659:Ketones / Q000494:pharmacology*; D008598:Menstruation / Q000187:drug effects; D011278:Pregnanes / Q000494:pharmacology*; D011372:Progestins / Q000494:pharmacology; D013237:Stereoisomerism
chemical_list: D003276:Contraceptives, Oral; D007659:Ketones; D011278:Pregnanes; D011372:Progestins; D004997:Ethinyl Estradiol