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K9 Advantix II Flea & Tick Treatment for Dogs Over 55-lbs

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In stock
  • 2 treatments
  • 4 treatments
  • 6 treatments
- Quantity +


  • Item Number
  • Breed Size
    Large, Giant
  • Lifestage
    Puppy, Adult
  • Brand

K9 Advantix II Flea Treatment for Dogs Over 55-lbs offers broad spectrum flea control and protection against ticks and mosquitoes, too. It is specifically formulated for dogs and comes in a convenient, monthly topical application that not only kills but also repels fleas, ticks and mosquitoes. K9 Advantix II also kills all life stages of fleas, repels biting flies and kills lice. It contains imidacloprid, permethrin and pyriproxyfen that work in concert to repel and kill parasites that can potentially transmit disease-causing organisms. K9 Advantix II is a flea treatment for use on dogs 7 weeks and older.

Key Benefits

  • Flea treatment for dogs over 55 pounds
  • Repels and kills ticks, fleas and mosquitoes
  • Repels biting flies and kills lice
  • Kills all life stages of fleas and prevents development of fleas, flea eggs, larvae and pupae
  • Prevents fleas on a treated dog from reinfesting the home
  • Kills fleas within 12 hours and kills reinfesting fleas within 2 hours
  • Provides waterproof protection

See all items by K9 Advantix II

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Customer Reviews

Rated 4.7 out of 5 by 368 reviewers.
Rated 5 out of 5 by K9advantix II Karley Rae Kat, my Doberman Daughter, hates K9 Advantix II. Fortunately, fleas hate this too. They are dying to have us try a different product. Believe I will stay the course and continue to purchase Advantix II from Chewy.com. :-) September 21, 2016
Rated 5 out of 5 by Kills those flees Great product , never had a problem with any flees since I started using this product , September 17, 2016
Rated 5 out of 5 by It works good I have been using K9 Advantix for about 7 years I think. If I bath my dogs then I wait two days later to apply it. It does a great job. Never any fleas or ticks. I'm happy and so are the dogs September 19, 2016
Rated 5 out of 5 by I prefer this brand of flea and tick product Having used other brands of flea and tick products, this one is preferable for its reliability and ease of use. September 18, 2016
Rated 5 out of 5 by K9 Advantix II Flea & Tick medicine is not an option Harley Quinn is 16 month female golden retriever! WE rely on K9 to protect her throughout the year! September 19, 2016
Rated 5 out of 5 by Great price The K9 Advantix was at a great price and shipping was quick. Thanks. September 19, 2016
Rated 5 out of 5 by Great Product and fast shipping Read up on this product and changed from frontline plus to this. Very glad I did. Does more for a better pric. September 18, 2016
Rated 5 out of 5 by 6 months in, will continue to use year round Apparently my long-haired doodle had fleas twice before we adopted him at just over a year old. We started using this (great deal when on sale) and haven't had any issues at all through the hot, humid, buggy midwest summer. I will continue to use year round, per our vet's advice. I love that it not only kills, but repels insects - a huge plus compared to other brands. September 13, 2016
  • 2016-09-23 T06:00:38.632-05:00
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