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K9 Advantix II Flea Treatment for Dogs Over 55-lbs

List Price: $69.99
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6 treatments
  • 4 treatments
  • 6 treatments
  • 2 treatments

K9 Advantix II Flea Treatment for Dogs Over 55-lbs, 6 treatments

K9 Advantix repels and kills mosquitoes before they can bite. The vector of West Nile Virus, mosquitoes are a growing concern. Research demonstrates K9 Advantix kills up to 98.3% of mosquitoes and reduces their feeding up to 95.2%. Mosquitoes that don't bite can't annoy dogs or transmit disease. Do not use on cats!

Key Benefits

  • Repels and kills ticks, fleas and mosquitoes before they can bite
  • Kills up to 98.3% of mosquitoes and reduces their feeding up to 95.2%
  • Effective for up to 30 days

See all items by K9 Advantix II »

Item Number 74407
  • Bayer
Breed Size
  • Large
  • Giant

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K9 Advantix II Flea Treatment for Dogs Over 55-lbs Customer Reviews

Rated 4.6 out of 5 by 125 reviewers.
Rated 5 out of 5 by Mr Chewy has the best costumer service!!! Besides having the best products in the market, Mr. Chewy provides the best customer service I have ever experienced. thank you for what you guys do you're the best!!! December 31, 2012
Rated 5 out of 5 by This product is awesome! We live in the country on a lake. K9 Advantix II gets rid of those pesky black flies as well as killing ticks, fleas and mosquitoes. Two thumbs up! March 29, 2012
Rated 5 out of 5 by Best on the market Our goldens have been on K9 Advantix II for a few years now. They have never had a flea on them and the occasional tick is dead by the time we find it. Chewy's price was so low that my vet wouldn't price match. December 29, 2012
Rated 5 out of 5 by Excellent Product This product not only kills ticks and fleas, but also repels. Have not found tick on dog at all and we live in the woods. July 24, 2012
Rated 5 out of 5 by effective have used this product for years on my 6 GSDs and 1 lab and I have never had a problem. December 30, 2013
Rated 5 out of 5 by Better then Frontline & Advantage Each person, product, pet & location are all different. Some people prefer 1 over the other, I prefer Advantix II. Where we live (in the sticks) is a lot of sand & with sand come sand fleas. These little boogars are the worse yet! Not to mention the numerous strays that get dropped off daily. This is the 1 product that actually works the way it was meant to. In the city, Frontline was the 1 to beat...but not out here. Frontline cant' lay a finger on these fleas...LOL. It works for the entire month +/- a day or so. And for the price, well.... July 18, 2014
Rated 1 out of 5 by Tick prevention??? Very disappointed in your product Bayer K9advantix II for extra large dog. Gave our dog his second dose less than 2 weeks ago and in last two days have found 2 ticks attached to him full of his blood. Carefully followed all instructions on packaging. Would like refund. Will be happy to return unused tubes to you when return label / postage is sent to us. June 24, 2014
Rated 1 out of 5 by Advantix made my dogs sick Our dogs normally get Frontline Plus but I thought I would switch things up and get Advantix Plus but it made my three dogs ill with loose bowel and vomit. Will never order again. June 13, 2014
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