<unk> is used in menopausal hormone therapy to treat menopausal symptoms, such as hot flashes, vulvovaginal atrophy, and dyspareunia (difficult or painful sexual intercourse). The benefits of<unk> on bone mineral density and osteoporosis prevention have been inconsistent and are less clear.<unk> has been found to reduce the risk of urinary tract infections and other urogenital symptoms. A combination of<unk> and lactobacilli as a dual estrogen and probiotic has been marketed for the treatment of vaginal atrophy and urinary tract infections. Available forms<unk> is available in oral tablet, vaginal cream, and vaginal suppository forms. It is also available over-the-counter or from compounding pharmacies in the form of topical creams. The medication is available both as<unk> and in the form of<unk> ester prodrugs such as<unk> succinate,<unk> acetate benzoate, and<unk> tripropionate, as well as the polymeric ester prodrug polyestriol phosphate.<unk> was originally marketed in the 1930s in the form of oral capsules containing 0.06, 0.12, or 0.24 mg<unk> under the brand names Theelol (Parke-Davis) and<unk> (Lilly, Abbott). Subsequently, many decades later, oral tablets containing 0.35, 1, or 2 mg<unk> were introduced under brand names such as Gynäsan, Hormomed, Ovestin, and Ovo-Vinces.
Estriol 
2-Hydroxyestradiol
Estradiol acetate
Estrogen 
Estrogen
11-Ketoprogesterone
Estradiol 
Estradiol