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warnings and cautions
5 WARNINGS AND PRECAUTIONS If redness or irritation develops with the use of NAFTIN ® Gel treatment should be discontinued. ( 5.1 ) 5.1 Local Adverse Reactions If irritation or sensitivity develops with the use of NAFTIN ® Gel, treatment should be discontinued.
6 ADVERSE REACTIONS The most common adverse reactions are application site reactions (2%). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Legacy Pharma Inc. at 1-800-727-7151 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical 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 NAFTIN ® 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 NAFTIN ® 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 12-17 years of age with interdigital tinea pedis received NAFTIN ® 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 NAFTIN ® Gel to cause irritation. There was no evidence that NAFTIN ® Gel causes contact sensitization, phototoxicity, or photoallergenicity in healthy skin. 6.2 Postmarketing 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.