Advantage Multi is available by prescription only. It is used to prevent a variety of internal and external parasites including heartworms, fleas, roundworms, hookworms, and whipworms. The active ingredients are imidacloprid and moxidectin. Imidacloprid is an insecticidal agent that acts on the central nervous system of fleas, causing paralysis and death. Moxidectin is a parasite control drug that disrupts the nerve transmission of heartworms and intestinal worms. It also leads to insect paralysis and death. This product is safe to use in collie breeds and collie mixed breeds.

This item requires a prescription from your veterinarian. Read More