Protect your favorite feline from pesky fleas and ticks with Apex Plus Topical Flea & Tick Treatment for Cats. It's specifically formulated for cats weighing more than 1.5 pounds, providing precise, effective protection. This flea and tick treatment not only kills adult fleas, but also targets flea eggs and larvae, preventing the development of flea pupae. It features a combination of Fipronil and (S)-methoprene that works synergistically to attack the nervous systems of fleas and ticks, while inhibiting the maturation of flea eggs and larvae - effectively breaking the flea life cycle. Plus, it's easy to apply, and one monthly application provides 30 days of continuous protection against fleas, ticks, and chewing lice. Designed to become waterproof just 24 hours after application, this super convenient formula continues to work effectively even if your kitty gets wet.