title: A clinical study on a sequential oral contraceptive-Ovisec.
mesh_terms: D000152:Acne Vulgaris / Q000139:chemically induced; D000328:Adult; D001835:Body Weight; D002986:Clinical Trials as Topic; D003276:Contraceptives, Oral / Q000009:adverse effects; D003863:Depression / Q000139:chemically induced; D004412:Dysmenorrhea / Q000188:drug therapy; D004997:Ethinyl Estradiol; D005221:Fatigue / Q000139:chemically induced; D005260:Female; D006261:Headache / Q000139:chemically induced; D006801:Humans; D008535:Megestrol; D008598:Menstruation; D008875:Middle Aged; D009325:Nausea / Q000139:chemically induced; D010919:Placebos; D011278:Pregnanes; D011372:Progestins; D014839:Vomiting / Q000139:chemically induced
chemical_list: D003276:Contraceptives, Oral; D010919:Placebos; D011278:Pregnanes; D011372:Progestins; D004997:Ethinyl Estradiol; D008535:Megestrol