Fiproguard Plus topical flea and tick squeeze-on for dogs provides three-way protection that kills fleas, ticks and chewing lice. It kills Deer ticks that transmit Lyme disease as well as Brown dog ticks, American dog ticks and Lone star ticks. It also controls mites that may cause sarcoptic mange. It is waterproof and can be used on breeding, pregnant and lactating dogs. Fast-acting and long-lasting, sustained release formula protects dogs for up to 30 days.