Seresto Collars protect against Fleas and Ticks for 8 months. Seresto is available for dogs and cats. Through its' innovative delivery techonology, pet owners can be confident their pet(s) are protected against fleas and ticks for 8 months. Two active ingredients: Imidacloprid and Flumethrin Flumethrin works together with imidacloprid to provide dual action against fleas and ticks. No other treatment has this combination of ingredients.
Seresto Flea & Tick Collar Small Dogs