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K9 Advantix II Flea & Tick Treatment for Dogs 11-20 lbs

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  • 2 treatments
  • 4 treatments
  • 6 treatments
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  • Item Number
  • Breed Size
  • Lifestage
    Puppy, Adult
  • Brand

K9 Advantix II Flea Treatment for Dogs 11-20 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 between 11 and 20 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 156 reviewers.
Rated 4 out of 5 by It's good It seems to be working but she still has itching spells which is probably dry skin. But haven't had any flea issues. August 23, 2016
Rated 5 out of 5 by I have been using this product for a number of years It is easy to use and most effective. I will continue to use it. August 22, 2016
Rated 5 out of 5 by Great product We have been using this for our dogs for many years. One of our dogs killed a rabbit and got fleas right away. We put this on all three of our dogs, and the fleas were gone instantly. We haven't found any ticks on any of them since using this product. August 22, 2016
Rated 5 out of 5 by get it I have 4 dogs and sometimes I lose track of how much Advantix or Heart worm pills I have for them, one is in the bigger class also. So, when I order I really appreciate prompt service and I received this very quickly. August 15, 2016
Rated 5 out of 5 by Advantix II This is the only flea product that doesn't irritate my dogs skin. Frontline was a disaster. Ended up having to immediately wash it off 2 of my 3 dogs. I've never had a problem with Advantix and it does the trick. August 12, 2016
Rated 5 out of 5 by K9 Advantix II is a great product and highly recommended. I am a first time user of Chewy.com. I ordered K9 Advantix II on a Sunday after noon with a 20% discount & free shipping. Tuesday morning, a package from Chewy.com arrived at my door. I was totally amazed as to how fast the product was shipped. I am now a Chewy.com customer for life and will tell every one about the site. The only problem I did have with Chewy.com was that they were out of Capstar and had to order it elsewhere. August 3, 2016
Rated 5 out of 5 by This product was great I put this on my dogs and within 24 hours I noticed a huge difference. We couldn't find a flea on them. Incredible! August 12, 2016
Rated 5 out of 5 by This product is easy to apply Have never had any problem with fleas or ticks with using this product. August 11, 2016
  • 2016-08-26 T09:54:23.572-05:00
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