title: Lybrel--a continuous oral contraceptive.
mesh_terms: D002626:Chemistry, Pharmaceutical; D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined / Q000008:administration & dosage* / Q000009:adverse effects / Q000737:chemistry; D019304:Ethinyl Estradiol-Norgestrel Combination / Q000008:administration & dosage* / Q000009:adverse effects / Q000737:chemistry; D005260:Female; D006801:Humans; D008796:Metrorrhagia / Q000139:chemically induced
chemical_list: D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D019304:Ethinyl Estradiol-Norgestrel Combination