Quick Overview : • Compare to FRONTLINE Plus* and SAVE! Fiprotrol Plus contains the same active ingredients as FRONTLINE Plus*, at lower cost per treatment• Kills fleas, ticks, flea eggs, flea larvae and chewing lice• Fast acting, long-lasting and waterproof• Active ingredients: Insecticide fipronil and (S)-methoprene, an insect growth regulator (IGR)• Do not use on cats