title: A new low dose norethindrone acetate (0.6 mg) ethinyl estradiol (30 mcg) combination oral contraceptive.
mesh_terms: D004305:Dose-Response Relationship, Drug; D004338:Drug Combinations; D004997:Ethinyl Estradiol / Q000009:adverse effects / Q000494:pharmacology*; D005260:Female; D005298:Fertility / Q000187:drug effects*; D006801:Humans; D008796:Metrorrhagia / Q000139:chemically induced; D009640:Norethindrone / Q000009:adverse effects / Q000494:pharmacology*
chemical_list: D004338:Drug Combinations; D004997:Ethinyl Estradiol; D009640:Norethindrone