药物信息为Ultravate (halobetasol propionate cream) Cream, 0.05%For Dermatological Use Only. Not for Ophthalmic Use.Rx only (Ranbaxy Laboratories Inc.): DESCRIPTION

Ultravate^® (halobetasol propionate cream) Cream, 0.05% contains halobetasol propionate, a synthetic corticosteroid for topical dermatological use. The corticosteroids constitute a class of primarily synthetic steroids used topically as an anti-inflammatory and antipruritic agent.

Chemically halobetasol propionate is 21-chloro-6a, 9-difluoro-11ß, 17-dihydroxy-16ß-methylpregna-1, 4-diene-3-20-dione, 17-propionate, C₂₅H₃₁ClF₂O₅. It has the following structural formula:

Halobetasol propionate has the molecular weight of 485. It is a white crystalline powder insoluble in water.

Each gram of Ultravate Cream contains 0.5 mg/g of halobetasol propionate in a cream base of cetyl alcohol, glycerin, isopropyl isostearate, isopropyl palmitate, steareth-21, diazolidinyl urea, methylchloroisothiazolinone, (and) methylisothiazolinone and water.