Revolution is an easy–to–administer, all–in–one flea and heartworm treatment for dogs and cats that simply works inside and out for a full month Revolution is not a scheduled poison† and is approved for use with kittens and puppies as young as 6 weeks old, as well as pregnant and lactating females. Revolution covers the treatment of ear mites, sarcoptic mange and cheyletiellosis in rabbits from as early as 8 weeks of age. Revolution for puppies and kittens can be used on small rabbits, and Revolution for cats can be used on larger rabbits. Dosage and administration_Once a month, simply squeeze Revolution out and onto the skin just in front of your cat or dog's shoulder blades. Two hours later, your pet will receive protection against fleas (including their eggs and larvae), heartworm, and other parasites for the next 30 days. In the event you bathe your pet two hours after applying Revolution, rest assured knowing Revolution will be unaffected, remaining completely effective. Once you've applied it, Revolution is quickly absorbed into your pet's bloodstream, killing heartworm and in cats, even intestinal worms. As it moves into your pet's skin and hair, it gets down to the business of killing fleas, flea larvae, flea eggs and other external parasites.