Frontline Plus 3 Pack 0.05 oz. Liquid Flea & Tick Control for small dogs weighing 23-44 lb. This odorless topical treatment contains 9.8% Fipronil and 8.8%(S)-methoprene, effectively killing fleas, flea eggs, ticks, and chewing lice. It breaks the flea life cycle and controls ticks and chewing lice infestations. Includes three 1-month applications.