<unk>  is used as a hormonal contraceptive in combination with an estrogen – usually ethinylestradiol (EE) – in combined oral contraceptive pills and alone in progestogen-only pills. Another medical use of<unk>  is to alleviate endometriosis related pain. In fact, 50% of patients who received medical or surgical treatment for endometriosis-related pelvic pain have benefited from progestin therapy. This could be due to the fact that<unk>  induces endometrial proliferation during secretory phase, which has been shown to alleviate endometrial pain complaints. Another way in which<unk>  may be acting to reduce endometrial pain is via inhibition of ovulation. Endometriosis pain and discomfort is worse during ovulation.
Norethisterone
Cloxotestosterone acetate
Androstanolone benzoate
Norvinisterone
Norethandrolone
Oxandrolone
Nandrolone propionate
Ethisterone