Frontline Plus - fast-acting flea and tick control treatment that eliminates fleas and ticks including disease. Frontline Plus eliminates flea eggs and larvae and controls further parasitic infestation. The topical solution assists in the control of flea allergy dermatitis and biting lice. The waterproof formula supplies continuous protection even when your pet gets wet. Frontline Plus contains two powerful constituents – fipronil and (S)-methoprene. Available for Both Cats and Dogs.