Revolution® For Dogs & Cats kills adult fleas and prevents flea eggs from hatching for 1 month, and it is indicated for the prevention and control of flea infestations (Ctenocephalides felis), prevention of heartworm disease caused by Dirofilaria immitis, and treatment and control of ear mite (Otedectes cynotis) infestations in dogs. Treatment and control of sarcoptic mange (Sarcoptes scabiei) and control of the American Dog Tick (Dermacentor variabilis) infestations in dogs. Note: Revolution® For Dogs & Cats does not repel the American Dog tick, but will kill the tick within 3-5 days. For dogs and cats 6 weeks of age and older. Mauve (Puppies and Kittens) is only available in the 3-Pack. Click here to view our Canine Flea and Tick Product Comparison Chart.