For use only on cats & kittens over 1.5 lbs and over 8 weeks of age. Kills fleas, flea eggs, flea larvae, ticks and chewing lice. Fast-acting. Long-lasting. Waterproof. Kills ticks, including those that may transmit Lyme disease. 3 applications. Compare to Frontline Plus for Cats. Contains the same active ingredients (This product is not manufactured or distributed by Merial, the makers of Frontline Plus for Cats. Frontline is a registered trademark of Merial). Questions? Comments? 1-888-908-Tick (8425). Or write to: Sergeant's Pet Care Products, Inc. PO Box 540399 Omaha, NE 68154-0399.