3d image of norethisterone skeletal formula

norethisterone norethindrone progestin medication birth control pills menopausal hormone therapy gynecological disorders net ethinylnortestosterone norpregneninolone anhydrohydroxy-norprogesterone ethinylestrenolone synthetic progestogen progesterone receptor agonist androgenic hormonal progestogen-only injectable control contraceptive poics hormonal contraception combined endometriosis rendering oral contraceptives mother gynecology obstetrics woman female sex hormone conditions fertility pregnancy replacement action endocrine endocrinology level prohormone analogue