Martin's FLEE plus IGR for Dogs (45-88 lbs.) Spot-On treatment for dogs and puppies 8 weeks or older. Contains Fipronil, the same active ingredient as FRONTLINE Plus for Dogs. Fast-acting, long-lasting and waterproof. Dural Action: Fipronil with (S)-methoprene insect growth regulator effectively breaks the flea life cycle. Kills fleas, ticks, chewing lice, flea eggs, flea larvae and prevents the development of flea pupae.. 3 month supply.Includes 3-0.091 fl. oz applicators.Kills brown dog ticks, American dog ticks, lone star ticks, and deer ticks for up to one month.