TevraPet FirstAct Plus Flea and Tick Topical for Cats over 1.5lbs, 3 Dose Waterproof Flea and Tick Control/Prevention for 3 MonthsProven formula Contains fipronil and (S) Methoprene, the same active ingredients as Frontline Plus for cats Effective This flea and tick topical kills fleas, flea eggs and larvae, chewing lice, and all stages of ticks including those that may transmit Lyme disease Waterproof use on your cat monthly, no need to reapply after swimming or bathing 3 month supply includes 3 applicators for 3 months of flea and tick Prevention; Apply these flea drops Once