Flea, tick and mosquito bites can be very painful for your dog. Worse, those bites may expose your dog to irritation, itching and even deadly diseases. Fleas may cause Flea Allergy Dermatitis (FAD) and if ingested, fleas ...

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Flea, tick and mosquito bites can be very painful for your dog. Worse, those bites may expose your dog to irritation, itching and even deadly diseases. Fleas may cause Flea Allergy Dermatitis (FAD) and if ingested, fleas could cause tapeworms. A bite from an infected tick can transmit diseases, such as Lyme disease or Rocky Mountain spotted fever, to your dog. And mosquitoes may transmit heartworms* or even West Nile virus to your dog.

K9 Advantix II is a veterinarian-recommended monthly flea, tick and mosquito treatment for your dog that kills through contact. No biting required.

Did you know not all flea and tick products work the same way? Frontline Plus doesn€t mention mosquitoes anywhere on the package. Chewable products require fleas and ticks to bite in order to die. Do not use on cats. *K9 Advantix II should not be used in place of a heartworm disease prevention product.

Do not use on cats.

*K9 Advantix II should not be used in place of a heartworm disease prevention product. Evenly apply the entire contents of the K9 Advantix II tube to two to three spots on the top of the back from the shoulder to the base of the tail. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin.



  • K9 Advantix II Extra Large Dog 30-day treatment & prevention protects dogs over 55 lbs. from fleas, ticks, mosquitoes, biting flies and lice
  • Kills fleas within 12 hours of application
  • Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
  • Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
  • No prescription needed

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