Advantage Multi For Cats 5.1-9 Lbs is part of the Pet Medications class and treats Pet Meds. Pet meds are prescription and over-the-counter medicines for dogs, cats, and other animals. They treat animal-only conditions and those also found in humans, and come in forms and dosages specifically for pets. Advantage Multi For Cats 5.1-9 Lbs is only available as a brand name drug.