<unk>  is used in the treatment of recurrent and threatened miscarriage and to prevent premature labor. However, except in the case of proven progesterone deficiency, its use for such indications is no longer recommended.<unk>  is one of only a handful of progestogens that has commonly been used for such purposes, the others including progesterone, hydroxyprogesterone caproate, and dydrogesterone. The medication has also been studied in the treatment of gynecological disorders such as amenorrhea, irregular menstruation, and premenstrual syndrome. Unlike other progestins,<unk>  has not been used in hormonal contraception or in menopausal hormone therapy. In one study, it was found to be inadequate for endometrial transformation in women in combination with estradiol valerate. On the other hand,<unk>  was found to be effective in the treatment of hot flashes in postmenopausal women.<unk>  has been commonly used in Japan at high dosages, typically 50 mg/day but as much as 100 mg/day, to treat BPH in men. Related medications that have similarly been used to treat BPH, particularly in Japan, include chlormadinone acetate, gestonorone caproate, and oxendolone.<unk>  has also been studied in the treatment of prostate cancer in Japan. The medication has been studied as a puberty blocker in the treatment of precocious puberty as well. Available forms<unk>  is available in the form of 5 mg oral tablets. It is typically used at a dosage of 5 to 40 mg/day. In Japan, a 25 mg<unk>  oral tablet, under the brand name Perselin, is marketed for the treatment of BPH.
Allylestrenol
Lynestrenol
Ethylestrenol
Norethandrolone
Androstanolone
Androstanolone benzoate
Norethisterone
Cloxotestosterone acetate