K9 Advantix provides your dog with comprehensive protection against fleas, mosquitoes, biting flies and chewing lice. Imidacloprid and Permethrin, the active ingredients in K9 Advantix repels and kills all life stages of fleas and ticks. Imidacloprid goes into your dog’s lipid layer on the skin and kills the fleas, while Permethrin remains on your dog’s skin and hair to prevent ticks from attaching, and kills them.

K9 Advantix is applied monthly to help prevent transmission of flea-borne and tick-borne diseases such as Rocky Mountain spotted fever or Lyme disease. K9 Advantix kills fleas and ticks within 24 hours and repels these pests before they can bite your dog. Killing fleas before they bite may also help prevent skin allergies caused by flea saliva. K9 Advantix repels mosquitoes before they bite, which may help prevent transmission of heartworms.