Revolution is a safe and simple monthly topical medication used to protect your pet from heartworms, fleas, and ear mites. It also protects dogs from ticks and sarcoptic mange and cats from roundworms and hookworms. Protects your pet from heartworms and fleas Fights both internal and surface parasitic infections Treats Sarcoptic mange in dogs Treats and controls ear mites Treats and controls roundworms and hookworms in cats Controls American Dog Tick infestation Only administered once a month