What is Revolution®? Revolution® is the safe, simple way to protect your pet from harmful parasites including fleas, heartworm, and intestinal worms. Revolution® is applied topically just once a month, is safe for pets and their owners, and is waterfast within 2 hours of application. For CATS, Revolution® is a complete parasite control in a convenient monthly spot-on that: Kills adult fleas, flea eggs and flea larvae in the environment. Treats, controls and prevents flea infestations. Controls flea allergy dermatitis. Prevents heartworm disease caused by Dirofilaria immitis. Treats and controls ear mites (Otodectes cynotis). Treats and controls intestinal roundworm (Toxocara cati) and hookworm (Ancylostoma tubaeforme). For DOGS, Revolution® is the convenient monthly spot-on which: Kills adult fleas, flea eggs and flea larvae in the environment. Treats, controls and prevents flea infestations. Controls flea allergy dermatitis. Prevents heartworm disease caused by Dirofilaria immitis. Treats and controls sarcoptic mange (Sarcoptes scabiei). Controls American dog tick (Dermacentor variabilis) infestations. Revolution® is waterproof in just two hours. Approved for use on kittens and puppies as young as six weeks. Excellent safety profile. Why do I need parasite protection for my pet? Parasites are more than a nuisance - they are a real threat to the health of your family and your pet. Heartworm disease is transmitted by mosquito bite and can kill both cats and dogs. Fleas make your pet uncomfortable and cause flea allergy dermatitis - a very common skin allergy. Fleas also transmit tapeworm to cats and dogs, as well as the trouble a flea infestation can cause you. Parasites like hookworms and roundworms can be transmitted to humans and cause a variety of health problems including nausea, neurological problems, and even blindness. Young children and the elderly may be particularly susceptible. What makes Revolution® the preferred parasite control product? Revolution is the first and only topical treatment to protect against a wide range of both external and internal parasites in dogs and cats. That's what makes it so revolutionary. In the past, you needed multiple treatments that were difficult to remember, hard to use, and stressful for you and your pet. And, unlike some other treatments, Revolution® won't keep you and your pet apart.