Clotrimazole/Betameth
FDA Drug Information • Also known as: Clotrimazole/Betameth
- Brand Names
- Clotrimazole/Betameth
- Drug Class
- Azole Antifungal [EPC]
- Route
- TOPICAL
- Dosage Form
- CREAM
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
Clotrimazole and betamethasone dipropionate cream USP, 1%/0.05% (base), contains combinations of clotrimazole, USP, an azole antifungal, and betamethasone dipropionate, USP, a corticosteroid, for topical use. Chemically, clotrimazole, USP is 1-(o-Chloro-α,α-diphenylbenzyl)imidazole, with the molecular formula C22H17ClN2, a molecular weight of 344.84, and the following structural formula: [clotrimazole structure] Clotrimazole, USP is an odorless, white crystalline powder, insoluble in water and soluble in ethanol. Betamethasone dipropionate, USP has 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 17,21-dipropionate, with the molecular formula C28H37FO7, a molecular weight of 504.59, and the following structural formula: [Beta structure] Betamethasone dipropionate, USP is a white to creamy-white, odorless crystalline powder, insoluble in water. Each gram of clotrimazole and betamethasone dipropionate cream, USP contains 10 mg clotrimazole, USP and 0.64 mg betamethasone dipropionate, USP (equivalent to 0.5 mg betamethasone), in a white to off-white hydrophilic cream. Inactive ingredients: Ceteareth-30, cetyl alcohol, mineral oil, propylene glycol, purified water, sodium phosphate monobasic monohydrate, stearyl alcohol and white petrolatum; benzyl alcohol as preservative.
What Is Clotrimazole/Betameth Used For?
Clotrimazole and betamethasone dipropionate cream is a combination of an azole antifungal and corticosteroid and is indicated for the topical treatment of symptomatic inflammatory tinea pedis, tinea cruris, and tinea corporis due to Epidermophyton floccosum, Trichophyton mentagrophytes, and Trichophyton rubrum in patients 17 years and older.
Dosage and Administration
Treatment of tinea corporis or tinea cruris: Apply a thin film of clotrimazole and betamethasone dipropionate cream into the affected skin areas twice a day for one week. Do not use more than 45 grams per week. Do not use with occlusive dressings. If a patient shows no clinical improvement after 1 week of treatment with clotrimazole and betamethasone dipropionate cream, the diagnosis should be reviewed. Do not use longer than 2 weeks. Treatment of tinea pedis: Gently massage a sufficient amount of clotrimazole and betamethasone dipropionate cream into the affected skin areas twice a day for two weeks. Do not use more than 45 grams per week. Do not use with occlusive dressings. If a patient shows no clinical improvement after 2 weeks of treatment with clotrimazole and betamethasone dipropionate cream, the diagnosis should be reviewed. Do not use longer than 4 weeks. Clotrimazole and betamethasone dipropionate cream is for topical use only. It is not for oral, ophthalmic, or intravaginal use. Avoid contact with eyes. Wash hands after each application.
Side Effects (Adverse Reactions)
6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. In clinical trials common adverse reaction reported for clotrimazole and betamethasone dipropionate cream was paresthesia in 1.9% of patients. Adverse reactions reported at a frequency less than 1% included rash, edema, and secondary infection. 6.2 Postmarketing Experience Because adverse reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The following local adverse reactions have been reported with topical corticosteroids: itching, irritation, dryness, folliculitis, hypertrichosis, acneiform eruptions, hypopigmentation, perioral dermatitis, allergic contact dermatitis, maceration of the skin, skin atrophy, striae, miliaria, capillary fragility (ecchymoses), telangiectasia, and sensitization (local reactions upon repeated application of product). Ophthalmic adverse reactions of blurred vision, cataracts, glaucoma, increased intraocular pressure, and central serous chorioretinopathy have been reported with the use of topical corticosteroids, including topical betamethasone products. Adverse reactions reported with the use of clotrimazole are: erythema, stinging, blistering, peeling, edema, pruritus, urticaria, and general irritation of the skin.
Contraindications
None.
How Supplied
Clotrimazole and betamethasone dipropionate cream, USP is available as follows: 15 gram tube in a carton (NDC 72189-518-15) 45 gram tube in a carton (NDC 0472-0379-45)
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.