Treatment and prevention of flea infestations (Ctenocephalides spp.); kills adult fleas, eggs and larvae; use as part of a treatment strategy for flea allergy dermatitis; may aid in the control of existing environmental flea infestations in areas to which the animal has access; treatment of adult roundworms (Toxocara cati); prevention of heartworm disease (Dirofilaria immitis); treatment of ear mites (Otodectes cynotis); treatment of biting lice (Felicola subrostratus); treatment of adult intestinal hookworms (Ancylostoma tubaeforme).