Land: USA
Språk: engelsk
Kilde: NLM (National Library of Medicine)
Betamethasone Valerate (UNII: 9IFA5XM7R2) (Betamethasone - UNII:9842X06Q6M)
Taro Pharmaceuticals U.S.A., Inc.
Betamethasone Valerate
Betamethasone Valerate 1.2 mg in 1 g
TOPICAL
PRESCRIPTION DRUG
Betamethasone valerate foam, 0.12% is a medium potency topical corticosteroid indicated for relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses of the scalp. Betamethasone valerate foam, 0.12% is contraindicated in patients who are hypersensitive to betamethasone valerate, to other corticosteroids, or to any ingredient in this preparation.
Betamethasone Valerate Foam, 0.12% is supplied in 50 gram (NDC 51672-4188-3) and 100 gram (NDC 51672-4188-7) aluminum cans. Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].
Abbreviated New Drug Application
BETAMETHASONE VALERATE- BETAMETHASONE VALERATE AEROSOL, FOAM TARO PHARMACEUTICALS U.S.A., INC. ---------- BETAMETHASONE VALERATE FOAM, 0.12% Rx Only FOR DERMATOLOGIC USE ONLY NOT FOR OPHTHALMIC USE DESCRIPTION Betamethasone Valerate Foam, 0.12% contains betamethasone valerate, USP, a synthetic corticosteroid, for topical dermatologic use. The corticosteroids constitute a class of primarily synthetic steroids used topically as anti-inflammatory agents. Betamethasone valerate is 9-fluoro11β,17, 21-trihydroxy-16β-methylpregna-1, 4-diene-3, 20-dione 17- valerate, with the empirical formula C H FO , a molecular weight of 476.58. The following is the chemical structure: Betamethasone valerate Betamethasone valerate is a white to practically white, odorless crystalline powder, and is practically insoluble in water, freely soluble in acetone and in chloroform, soluble in alcohol, and slightly soluble in benzene and in ether. Betamethasone valerate foam, 0.12%, contains 1.2 mg betamethasone valerate, USP, per gram in a thermolabile hydroethanolic foam vehicle consisting of alcohol (60.4%), cetyl alcohol, citric acid anhydrous, polysorbate 60, potassium citrate, propylene glycol, purified water, and stearyl alcohol pressurized with a hydrocarbon (propane/butane) propellant. CLINICAL PHARMACOLOGY Like other topical corticosteroids, betamethasone valerate foam has anti-inflammatory, antipruritic, and vasoconstrictive properties. The mechanism of the anti-inflammatory activity of the topical steroids, in general, is unclear. However, corticosteroids are thought to act by the induction of phospholipase A inhibitory proteins, collectively called lipocortins. It is postulated that these proteins control the biosynthesis of potent mediators of inflammation such as prostaglandins and leukotrienes by inhibiting the release of their common precursor arachidonic acid. Arachidonic acid is released from membrane phospholipids by phospholipase A . PHARMACOKINETICS Topical corticosteroids can be absorbed from intact healthy skin. The e read_full_document