Clotrimazole Topical

Description

DESCRIPTION Clotrimazole Topical Solution, USP 1% contains 10 mg clotrimazole USP, a synthetic antifungal agent having the chemical name 1-(o-Chloro-α,α-diphenylbenzyl) imidazole with the following structural formula: Molecular Formula C 22 H 17 CIN 2 Molecular Weight 344.85 Clotrimazole is an odorless, white crystalline substance. It is practically insoluble in water, sparingly soluble in ether and very soluble in polyethylene glycol 400, ethanol, and chloroform. Each mL of Clotrimazole Topical Solution, USP 1% contains 10 mg clotrimazole USP in a nonaqueous vehicle of polyethylene glycol 400. clotri

What Is Clotrimazole Topical Used For?

INDICATIONS & USAGE Prescription Clotrimazole Topical Solution product is indicated for the topical treatment of candidiasis due to Candida albicans and tinea versicolor due to Malassezia furfur . This formulation is also available as a nonprescription product which is indicated for the topical treatment of the following dermal infections: tinea pedis, tinea cruris, and tinea corporis due to Trichophyton rubrum , Trichophyton mentagrophytes, Epidermophyton fluoccosum, and Microsporum canis .

Dosage and Administration

DOSAGE & ADMINISTRATION Gently massage sufficient Clotrimazole Topical Solution, USP 1% into the affected and surrounding skin areas twice a day, in the morning and evening. Clinical improvement, with relief of pruritus, usually occurs within the first week of treatment with Clotrimazole Topical Solution, USP 1%. If the patient shows no clinical improvement after 4 weeks of treatment with Clotrimazole Topical Solution, USP 1% the diagnosis should be reviewed.

Side Effects (Adverse Reactions)

ADVERSE REACTIONS The following adverse reactions have been reported in connection with the use of clotrimazole: erythema, stinging, blistering, peeling, edema, pruritius, urticaria, burning, and general irritation of the skin.

Drug Interactions

Drug Interactions Synergism or antagonism between clotrimazole and nystatin, or amphotericin B, or flucytosine against strains of C. albicans has not been reported.

Contraindications

CONTRAINDICATIONS Topical antifungal agents are contraindicated in those patients with a history of hypersensitivity to any of the components of the preparation.

Pregnancy and Breastfeeding

Usage in Pregnancy Teratogenic Effects Pregnancy Category B The disposition of 14 C-clotrimazole has been studied in humans and animals. Clotrimazole is very poorly absorbed following dermal application or intravaginal administration to humans. (See CLINICAL PHARMACOLOGY ) In clinical trials, use of vaginally applied clotrimazole in pregnant women in their second and third trimesters has not been associated with ill effects. There are, however, no adequate and well-controlled studies in pregnant women during the first trimester of pregnancy. Studies in pregnant rats with intravaginal doses up to 100 mg/kg have revealed no evidence of harm to the fetus due to clotrimazole. High oral doses of clotrimazole in rats and mice ranging from 50 to 120 mg/kg resulted in embryotoxicity (possibly secondary to maternal toxicity), impairment of mating, decreased litter size and number of viable young and decreased pup survival to weaning. However, clotrimazole was not teratogenic in mice, rabbits and rats at oral doses up to 200, 180 and 100 mg/kg, respectively. Oral absorption in the rat amounts to approximately 90% of the administered dose. Because animal reproduction studies are not always predictive of human response, this drug should be used only if clearly indicated during the first trimester of pregnancy.

Nursing Mothers It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when clotrimazole is used by a nursing woman.

Overdosage

OVERDOSAGE Acute overdosage with topical application of clotrimazole is unlikely and would not be expected to lead to a life-threatening situation.

How Supplied

HOW SUPPLIED Clotrimazole Topical Solution, USP 1% is supplied as follows: NDC 70954-036-20 in 30 mL one bottle in a carton Store at 2° to 30°C (36° to 86°F). Manufactured by: Novitium Pharma LLC 70 Lake Drive East Windsor, New Jersey 08520 LB-4008-01 Revised:12/18