Learn about Lamisil (Terbinafine) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. Adults and children over 16 years of age. Lamisil AT 1% Cream is applied once daily. Duration and frequency of treatment. Duration of treatment is one week for tinea pedis and tinea cruris. TERBINAFINE is an antifungal medicine. It is used to treat certain kinds of fungal or yeast infections. The lowest GoodRx price for the most common version of generic Lamisil is around $8.23, 92% off the average retail price of $109.23. Lamisil (terbinafine hydrochloride) is an antifungal antibiotic used to treat infections caused by fungus that affect the fingernails or toenails (onychomycosis). Lamisil Tablets (terbinafine) are used to treat fungal infections of the fingernails and toenails, tinea infections of the body, and athlete's foot. Lamisil (Terbinafine) is prescribed to treat fingernail and toenail fungal infections. It can be taken by mouth or applied to the skin. Lamisil (terbinafine) is used to treat infections caused by fungus that affect the fingernails or toenails. Includes Lamisil side effects, interactions and indications. Easy-to-read patient leaflet for Lamisil. Includes indications, proper use, special instructions, precautions, and possible side effects. Pregnancy and breast-feeding cautions Pregnancy category B. There is very limited experience with terbinafine in pregnant women, therefore unless the potential benefits outweigh potential risks, generic lamisil tablets should not be used during pregnancy. Terbinafine (Lamisil, Lamisil AT) is an antifungal medication prescribed for the treatment of fungal nails, jock itch, and athlete's foot. Side effects, dosing, and drug interaction information is included.