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

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    $55.33 FREE 1-2 Day Shipping

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In stock
  • 2 treatments
  • 4 treatments
  • 6 treatments


  • Item Number
  • Breed Size
    Large, Giant
  • Lifestage
    Adult, Puppy
  • 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 302 reviewers.
Rated 5 out of 5 by Love the product, hated the packaging! I ordered this item along with the 42# bag of Purina Dog Chow. Alone, these items are excellent, but I was not happy with the packaging. The K-9 Advantix II was stuffed in the side between the bag of food and side of box, and when I received it, the box for the K-9 Advantix II was damaged, and the single dose tubes were loose in the big shipping box. I would suggest separate shipping of this item when shipping with larger, heavier items, or enclose it in a smaller box within the big box. July 15, 2016
Rated 5 out of 5 by fast working I have three dogs and took them to a park and noticed later that night all of them itching and biting. Ordered k9 advantix and it was here in 2 days and applied it immediately. Within hours all the dogs stopped itching and days later no signs of fleas! Great product definitely recommend. July 19, 2016
Rated 5 out of 5 by Excellent product I'm sold on Chewy.com for my pets! The overall experience was excellent July 21, 2016
Rated 5 out of 5 by Reliable flea/tick control I found Chewy by searching for a better price for this product and I'm so glad I ordered from here. Fast shipping and it came well packaged! July 19, 2016
Rated 5 out of 5 by Works well I've been using this product since my dog was a puppy, she's now three years old. We live in an area that deer are constantly in our yard. we do not have any problem with fleas or ticks getting on her. July 22, 2016
Rated 5 out of 5 by No more ticks Keeps my dogs tick free. Without the product, the dogs have ticks that need to be removed. With the product, no more ticks! July 17, 2016
Rated 3 out of 5 by Fast shipping I did appreciate the fast shipping on the product and the quick response of the medicine taking action. What sold me on the product was it said it was waterproof . Although it didn't seem to work after two weeks. My country dogs are primarily outdoors and we have river side property. The dogs had only swam 5 times in the two weeks. I would recommend it for a inside dogs but not dogs that swim often. July 9, 2016
Rated 5 out of 5 by excellent product would definitely recommend this product to others for use have used it for years and never had issues. chewy.com was a great way to receive product quickly July 18, 2016
  • 2016-07-23 T10:58:44.425-05:00
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