Lamisil 250mg tablets contain terbinafine, an antifungal medication manufactured by Novartis. Each pack contains 14 tablets with 250mg of terbinafine per tablet. This oral medication is used to treat various fungal infections. Lamisil (terbinafine) works by stopping the growth of fungi that cause infections. The 250mg tablet strength is typically prescribed for treating fungal infections of the nails (onychomycosis) and skin. The duration of treatment depends on the type and severity of the infection. This medication should only be taken as prescribed by a healthcare provider.