Trusted by vets for over 20 years, this waterproof, fast-acting flea and tick treatment kills fleas, flea eggs, lice, and ticks, including those that may transmit Lyme disease Designed for use only with dogs and puppies, this long-lasting treatment is made for dogs eight weeks or older Made with two active ingredients, fipronil and (S)-methoprene, this treatment stops infestations and prevents new ones Applied on a single point on your pet, the treatment rapidly covers your dog's entire body and deposits in the sebaceous glands. These glands as a reservoir, continuously replenishing the treatment onto your pet, working even if your dog gets wet One dose of FRONTLINE Plus lasts 30 days

FRONTLINE Plus Flea and Tick Treatment for Dogs (Extra Large Dog, 89-132 Pounds, 8 Doses)