Revolution is a prescription-only medication that protects dogs against heartworms, fleas and other common internal and external parasites, according to the Revolution website. It is topically applied, and is used on dogs that are 6 weeks and older.
Only one dose of Revolution is needed per month, and it is applied at the base of a dog's neck, according to Revolution. It then enters the bloodstream to prevent diseases in the blood and tissue before it is redistributed to the skin, where it treats, controls and protects against parasitic mites and ticks.
Revolution is proven safe for use in puppies, breeding dogs, and nursing or pregnant females, per Zoetis, the drug's manufacturer. It is quick-drying, non-greasy, and waterproof two hours after application. Revolution is available in six different options, depending on a dog's weight.