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

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  • 2 treatments
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  • 6 treatments


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  • Breed Size
  • Lifestage
    Puppy, Adult
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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 141 reviewers.
Rated 5 out of 5 by Recommended by Veterinarian Using product for three years - keeping my fur baby pest free July 21, 2016
Rated 5 out of 5 by Best flea, tick, and mosquito repellant! This stuff works, and was recommended by my vet and does not cause stomach upset like the pills. July 15, 2016
Rated 5 out of 5 by Great Value I'm so glad you carry this product and so thankful for the price as I live on a fixed income. I will continue ordering this product from your company. July 7, 2016
Rated 3 out of 5 by this product had worked this k9 advantix ii treatment has been used on my poodle since inheriting him since 2012. it had always done a very good job --- no fleas, no flea bites --- until these past two months. this month, he now, also, has a seresto collar which is suppose to be good for 8 months = better investment. July 2, 2016
Rated 1 out of 5 by Does not work I ordered a two month supply to give it a try. Since moving to Florida from Georgia we have been battling fleas non stop! This product seemed as if it was going to work the first month. I was super hopeful! 3 weeks into application the fleas are still there. I went ahead a applied the 2nd dose a week early, as I had read in others reviews that sometimes in high season it was necessary. Week 2 of 2nd application and my dogs still have fleas!!! June 29, 2016
Rated 5 out of 5 by This product has the best protection for my pet Advantix II keeps my dogs free of ticks, fleas, and mosquito bites. Use it every year so I know it works. June 24, 2016
Rated 4 out of 5 by Flea & Tick treatment you need to use These really work. After you apply K9 Advantix II it will be wet for a day or so. Just watch where you pet it's back. My Jack Russell never has a problem with any little pest trying to make a home on her. June 26, 2016
Rated 5 out of 5 by Great product and fast delivery. I ordered it and the very next morning it was at my home. The product works great, no side effects up to today so far and not predicting we will have any. Was very easy to apply, just not the most convenient to have to avoid touching the medicated area. June 22, 2016
  • 2016-07-23 T10:58:44.713-05:00
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