Revolution for Dogs 5-10kg is a spot-on treatment that protects dogs from fleas, ear mites, worms and lice as well as controlling flea allergy dermatitis and sarcoptic mange. Revolution for Dogs 5-10kg provides month long protection and is not a scheduled poison so it is safe for pets. Revolution for Dogs 5-10kg absorbs into the bloodstream to kill heartworm and intestinal worms and spreads over the skin and coat to kill fleas, flea larvae, flea eggs and lice. Revolution for Dogs 5-10kg is safe to use in puppies from 6 weeks of age. Revolution for Dogs 5-10kg comes in a pack of 3 and a pack of 6.