CLOBETASOL PROPIONATE

Clobetasol propionate topical solution USP, 0.05% contains the active compound clobetasol propionate, a synthetic corticosteroid, for topical dermatologic use. Clobetasol, an analog of prednisolone, has a high degree of glucocorticoid activity and a slight degree of mineralocorticoid activity. Chemically, clobetasol propionate is (11β,16β)-21-chloro-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1, 4-diene-3,20-dione, and it has the following structural formula: Clobetasol propionate has the molecular formula C 25 H 32 CIFO 5 and a molecular weight of 467. It is a white to almost white colored crystalline powder insoluble in water. Clobetasol propionate topical solution, USP contains clobetasol propionate 0.5 mg/g in a base of purified water, isopropyl alcohol (39.3%), carbomer 934P and sodium hydroxide. structure

Clobetasol propionate topical solution, USP is indicated for short-term topical treatment of inflammatory and pruritic manifestations of moderate to severe corticosteroid-responsive dermatoses of the scalp. Treatment beyond 2 consecutive weeks is not recommended, and the total dosage should not exceed 50 mL/week because of the potential for the drug to suppress the HPA axis. This product is not recommended for use in pediatric patients under 12 years of age.

Clobetasol propionate topical solution should be applied to the affected scalp areas twice daily, once in the morning and once at night. Clobetasol propionate topical solution is potent; therefore, treatment must be limited to 2 consecutive weeks and amounts greater than 50 mL/week should not be used. Clobetasol propionate topical solution is not to be used with occlusive dressings.

Clobetasol propionate topical solution is contraindicated in patients with primary infections of the scalp, or in patients who are hypersensitive to clobetasol propionate, other corticosteroids, or any ingredient in this preparation.

Clobetasol propionate topical solution is generally well tolerated when used for 2-week treatment periods. The most frequent adverse events reported for clobetasol propionate topical solution have been local and have included burning and/or stinging sensation, which occurred in 29 of 294 patients; scalp pustules, which occurred in 3 of 294 patients; and tingling and folliculitis, each of which occurred in 2 of 294 patients. Less frequent adverse events were itching and tightness of the scalp, dermatitis, tenderness, headache, hair loss, and eye irritation, each of which occurred in 1 of 294 patients. The following local adverse reactions are reported infrequently when topical corticosteroids are used as recommended. These reactions are listed in an approximately decreasing order of occurrence: burning, itching, irritation, dryness, folliculitis, hypertrichosis, acneiform eruptions, hypopigmentation, perioral dermatitis, allergic contact dermatitis, maceration of the skin, secondary infection, skin atrophy, striae, and miliaria. Systemic absorption of topical corticosteroids has produced reversible HPA axis suppression, manifestations of Cushing syndrome, hyperglycemia, and glucosuria in some patients. In rare instances, treatment (or withdrawal of treatment) of psoriasis with corticosteroids is thought to have exacerbated the disease or provoked the pustular form of the disease, so careful patient supervision is recommended. To report SUSPECTED ADVERSE REACTIONS, contact Novel Laboratories, Inc. at 1-866-403-7592 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.