Naftifine Hydrochloride: FDA label

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Indications

Naftifine hydrochloride gel USP, 2% is indicated for the treatment of interdigital tinea pedis caused by the organisms Trichophyton rubrum , Trichophyton mentagrophytes , and Epidermophyton floccosum . Naftifine Hydrochloride Gel USP, 2% is an allylamine antifungal indicated for the treatment of interdigital tinea pedis caused by the organisms Trichophyton rubrum, Trichophyton mentagrophytes, and Epidermophyton floccosum .

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Pregnancy and breastfeeding

8.1Pregnancy Risk Summary

There are no available data on naftifine hydrochloride gel use in pregnant women to evaluate a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies, no adverse effects on embryofetal development were seen at oral doses administered during the period of organogenesis up to 37 times the maximum recommended human dose (MRHD) in pregnant rats or subcutaneous doses administered during the period of organogenesis up to 4 times the MRHD in pregnant rats or 7 times the MRHD in pregnant rabbits ( see Data ).

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data Systemic embryofetal development studies were conducted in rats and rabbits.

Adverse reactions

The most common adverse reactions are application site reactions (2%). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Sun Pharmaceutical Industries, Inc., at 1-866-923-4914 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical Trials 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 clinical practice. In two randomized, vehicle-controlled trials, 1143 subjects were treated with naftifine hydrochloride gel versus 571 subjects treated with the vehicle.

The trial subjects were 12 to 92 years old, were primarily male (76%), and were 59% Caucasian, 38% Black or African American, and 23% Hispanic or Latino. Subjects received doses once daily, topically, for 2 weeks to cover the affected skin areas plus a ½-inch margin of surrounding healthy skin. The most common adverse reactions were application site reactions which occurred at the rate of 2% in naftifine hydrochloride gel arm versus 1% in vehicle arm.

Most adverse reactions were mild in severity. In an open-label pediatric pharmacokinetics and safety trial 22 pediatric subjects 12 to 17 years of age with interdigital tinea pedis received naftifine hydrochloride gel. The incidence of adverse reactions in the pediatric population was similar to that observed in adult population. Cumulative irritancy testing revealed the potential for naftifine hydrochloride gel to cause irritation.

There was no evidence that naftifine hydrochloride gel causes contact sensitization, phototoxicity, or photoallergenicity in healthy skin.

6.2Postmarketing Experience

Because these 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 adverse reactions have been identified during post-approval use of naftifine hydrochloride: blisters, burning sensation, crusting, dryness, erythema/redness, inflammation, irritation, maceration, pain, pruritus [mild]/itching, rash and swelling.

Naftifine Hydrochloride

Indications

Contraindications

Warnings and precautions

5.1Local Adverse Reactions

Pregnancy and breastfeeding

8.1Pregnancy Risk Summary

Two medicines in one question?

Adverse reactions

6.1Clinical Trials Experience

6.2Postmarketing Experience

Composition

Strengths and forms

Official product information

At a glance

Guidelines