Econazole Nitrate (3 brand names, 2 dosage forms, 1 route)
Available dosage forms: CREAM, AEROSOL, FOAM.
Routes of administration: TOPICAL.
Brand Names
- ECONAZOLE NITRATE
- ECOZA
- SPECTAZOLE
Indications and Usage
Econazole nitrate cream is indicated for topical application in the treatment of tinea pedis, tinea cruris, and tinea corporis caused by Trichophyton rubrum, Trichophyton mentagrophytes, Trichophyton tonsurans, Microsporum canis, Microsporum audouini, Microsporum gypseum, and Epidermophyton floccosum, in the treatment of cutaneous candidiasis, and in the treatment of tinea versicolor.
Dosage and Administration
Sufficient econazole nitrate cream, 1 % should be applied to cover affected areas once daily in patients with tinea pedis, tinea cruris, tinea corporis, and tinea versicolor, and twice daily (morning and evening) in patients with cutaneous candidiasis. Early relief of symptoms is experienced by the majority of patients and clinical improvement may be seen fairly soon after treatment is begun; however, candidal infections and tinea cruris and corporis should be treated for two weeks and tinea pedis for one month in order to reduce the possibility of recurrence. If a patient shows no clinical improvement after the treatment period, the diagnosis should be redetermined. Patients with tinea versicolor usually exhibit clinical and mycological clearing after two weeks of treatment.
Contraindications
Econazole nitrate cream is contraindicated in individuals who have shown hypersensitivity to any of its ingredients.
Adverse Reactions
During clinical trials, approximately 3% of patients treated with econazole nitrate cream, 1 % reported side effects thought possibly to be due to the drug, consisting mainly of burning, itching, stinging, and erythema. One case of pruritic rash has also been reported.
Drug Interactions
Warfarin Concomitant administration of econazole and warfarin has resulted in enhancement of anticoagulation effect. Most cases reported product application with use under occlusion, genital application, or application to large body surface area which may increase the systemic absorption of econazole nitrate. Monitoring of International Normalized Ratio (INR) and/or prothrombin time may be indicated especially for patients who apply econazole to large body surface areas, in the genital area, or under occlusion.
Overdosage
Overdosage of econazole nitrate in humans has not been reported to date. In mice, rats, guinea pigs and dogs, the oral LD50 values were found to be 462, 668, 272, and >160 mg/kg, respectively.