国: アメリカ合衆国
言語: 英語
ソース: NLM (National Library of Medicine)
HYDROCORTISONE (UNII: WI4X0X7BPJ) (HYDROCORTISONE - UNII:WI4X0X7BPJ)
Unit Dose Services
HYDROCORTISONE
HYDROCORTISONE 25 mg in 1 g
PRESCRIPTION DRUG
Abbreviated New Drug Application
HYDROCORTISONE- HYDROCORTISONE CREAM UNIT DOSE SERVICES ---------- HYDROCORTISONE CREAM USP, 1% CREAM USP, 2.5% FOR DERMATOLOGICAL USE ONLY NOT FOR OPHTHALMIC USE RX ONLY DESCRIPTION The topical corticosteroids constitute a class of primarily synthetic steroids used as anti-inflammatory and anti-pruritic agents. Hydrocortisone Cream USP, 1% and Hydrocortisone Cream USP, 2.5% contain hydrocortisone. Hydrocortisone is a white to practically white crystalline powder. Chemically, hydrocortisone is pregn-4-ene-3,20-dione, 11,17, 21-trihydroxy-, (11ß)-. Hydrocortisone has the molecular formula C H O and molecular weight of 362.47. The structural formula is: Hydrocortisone Hydrocortisone Cream USP, 1% (Each gram contains 10 mg of Hydrocortisone); Hydrocortisone Cream USP, 2.5% (Each gram contains 25 mg of Hydrocortisone) in a base containing cetyl alcohol, isopropyl palmitate, methylparaben, mineral oil and lanolin alcohol, polyoxyl 40 stearate, polysorbate 60, propylene glycol monostearate, propylene glycol, propylparaben, purified water, sorbic acid, and sorbitan monostearate. CLINICAL PHARMACOLOGY Topical corticosteroids share anti-inflammatory, anti-pruritic and vasoconstrictive actions. The mechanism of anti-inflammatory activity of the topical corticosteroids is unclear. Various laboratory methods, including vasoconstrictor assays, are used to compare and predict potencies and/or clinical efficacies of the topical corticosteroids. There is some evidence to suggest that a recognizable correlation exists between vasoconstrictor potency and therapeutic efficacy in man. PHARMACOKINETICS The extent of percutaneous absorption of topical corticosteroids is determined by many factors including the vehicle, the integrity of the epidermal barrier, and the use of occlusive dressings. Topical corticosteroids can be absorbed from normal intact skin. Inflammation and/or other disease processes in the skin increase percutaneous absorption. 21 30 5 Occlusive dressings substantially increase the percutaneous absorption of topical 完全なドキュメントを読む