title: Oral contraception: mechanism of action.
mesh_terms: D000818:Animals; D002584:Cervix Uteri / Q000187:drug effects; D003276:Contraceptives, Oral / Q000494:pharmacology*; D003280:Contraceptives, Oral, Synthetic / Q000494:pharmacology*; D004338:Drug Combinations; D004717:Endometrium / Q000187:drug effects; D045166:Estradiol Congeners / Q000494:pharmacology; D005187:Fallopian Tubes / Q000187:drug effects; D005260:Female; D006801:Humans; D007031:Hypothalamus / Q000187:drug effects*; D008253:Macaca mulatta; D009115:Muridae; D010053:Ovary / Q000187:drug effects; D010902:Pituitary Gland / Q000187:drug effects*; D011247:Pregnancy; D045167:Progesterone Congeners / Q000494:pharmacology
chemical_list: D003276:Contraceptives, Oral; D003280:Contraceptives, Oral, Synthetic; D004338:Drug Combinations; D045166:Estradiol Congeners; D045167:Progesterone Congeners