Naftifine is an allylamine antifungal drug

Antifungal drug

An antifungal medication is a medication used to treat fungal infections such as athlete's foot, ringworm, candidiasis , serious systemic infections such as cryptococcal meningitis, and others...

 for the topical treatment of tinea pedis, tinea cruris, and tinea corporis

Tinea corporis

Tinea corporis is a superficial fungal infection of the arms and legs, especially on glabrous skin, however it may occur on any part of the body.-Symptoms:...

(fungal infections).

Its precise mechanism of action is unknown, but may involve selectively blocking sterol biosynthesis via inhibition of the squalene 2,3-epoxidase enzyme. The half-life is approximate 2–3 days. The metabolites are excreted in the urine and feces.