Estrone, one of the major mammalian estrogens, is an aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone. It is produced in vivo from androstenedione or from testosterone via estradiol. It is produced primarily in the ovaries, placenta, and in peripheral tissues (especially adipose tissue) through conversion of adrostenedione. Estrone may be further metabolized to 16-alpha-hydroxyestrone, which may be reduced to estriol by estradiol dehydrogenase. It’s used as hameopatic in management of premenopausal and postmenopausal symptoms. In 1929, Butenandt isolated estrone from the urine of pregnant women. Estrone is known to be a carcinogen for human females as well as a cause of breast tenderness or pain, nausea, headache, hypertension, and leg cramps in the context of non-endogenous exposure. In men, estrone has been known to cause anorexia, nausea, vomiting, and erectile dysfunction. Estrone is relevant to health and disease states because of its conversion to estrone sulfate, a long-lived derivative. Estrone sulfate acts as a reservoir that can be converted as needed to the more active estradiol.

Piriprost (U-60, 257) is a structural analog of prostaglandin I2 (PGI2) with low IP receptor-mediated activity. It inhibits 5-LO (5-lipoxygenase). Piriprost inhibits the release of histamine and leukotrienes, implicating its role in inflammation and allergic responses. However, it was shown, that piriprost did not influence the airway responses after allergen in asthma. Nevertheless, even more, the drug was irritant to the respiratory tract than was placebo.

Epiestradiol is an estradiol isomer with weak estrogenic activity.

PENTAPIPERIUM is a synthetic quaternary ammonium anticholinergic and the antisecretory agent used especially in the treatment of peptic ulcer.

STANOLONE, also known as dihydrotestosterone, is a potent androgenic metabolite of testosterone and anabolic agent for systemic use. It may be used as a replacement of male sex steroids in men who have androgen deficiency, for example as a result of the loss of both testes, and also the treatment of certain rare forms of aplastic anemia which are or may be responsive to anabolic androgens.

Valeric acid is a colorless, oily liquid with an unpleasant odor. It is highly corrosive and must be handled with care. Valeric acid is mainly used as a chemical intermediate to manufacture flavors and perfumes, synthetic lubricants, agricultural chemicals, and pharmaceuticals. It is also used as a flavoring aid in foods. Valeric acid is considered safe as a food additive by the World Health Organization.

Valeric acid is a colorless, oily liquid with an unpleasant odor. It is highly corrosive and must be handled with care. Valeric acid is mainly used as a chemical intermediate to manufacture flavors and perfumes, synthetic lubricants, agricultural chemicals, and pharmaceuticals. It is also used as a flavoring aid in foods. Valeric acid is considered safe as a food additive by the World Health Organization.

Valeric acid is a colorless, oily liquid with an unpleasant odor. It is highly corrosive and must be handled with care. Valeric acid is mainly used as a chemical intermediate to manufacture flavors and perfumes, synthetic lubricants, agricultural chemicals, and pharmaceuticals. It is also used as a flavoring aid in foods. Valeric acid is considered safe as a food additive by the World Health Organization.