Revolution 80-130lbs for Dogs (selamectin) is the safe, simple way to protect your dog from heartworms, fleas and other harmful parasites that transmit disease. This topical flea treatment enters your dog’s bloodstream through the skin and redistributes from the blood to the skin, where it provides powerful protection against fleas, flea eggs, American dog tick, and mites. Revolution is the first-ever FDA-approved, topically applied medication for dogs that also prevents heartworm disease. As pet owners, it’s our job to protect our pets and keep them safe and healthy. Revolution 80-130lbs for Dogs is a promise to your pet’s health.