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K9 Advantix II Flea Treatment for Dogs 21-55 lbs

List Price: $92.19
Price: $62.99 & FREE 1-2 Day Shipping
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6 treatments
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  • 4 treatments
  • 6 treatments

Product Description

K9 Advantix II offers broad spectrum protection against fleas, 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 for use on dogs 7 weeks and older.

Key Benefits

  • For dogs between 21 and 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 »

Item Number 74405
  • Bayer
Breed Size
  • Medium
  • Adult
  • All Stages
  • Puppy

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Customer Ratings & Reviews

Rated 4.7 out of 5 by 174 reviewers.
Rated 5 out of 5 by Works K9 Advantix works. Prevents fleas. What else would you want in a flea prevention med? Can't really tell if it stops mosquitoes. I asked him, but he wouldn't say. Not sure if he understands the word mosquito. Doesn't scratch as much as I do, though, so it must help. July 21, 2013
Rated 5 out of 5 by Great flea prevention! My vet gave me a sample to test and I'll definitely be buying this from now on. My dog has only picked up a stray flea here and there over the past month, but it's nowhere near the infestation he had. I tried literally every flea product on the market trying to get rid of/prevent fleas from downright destroying him for an entire year, and this is the only one that seems to work. So money well spent! January 21, 2014
Rated 5 out of 5 by This stuff really works! We live in a very wooded area in NE Pennsylvania, with three dogs. Flea and tick season can be a real nightmare! This product works great on our dogs, we never find ticks that have attached, and fleas are never a problem. I have tried other types of topical treatments, but by far K9 Advantix II is the best! May 9, 2014
Rated 5 out of 5 by Great product, very effective We live in Florida and have found this product very effective. It keeps our beagle, who spends most of his time outdoors, free from ticks and fleas. January 14, 2014
Rated 1 out of 5 by not working for us I bought Advantix hoping it would help solve my boxers flea has not. I still see the critters on her. She is at the high end of the suggested weight limit, could that be the problem? September 29, 2015
Rated 3 out of 5 by Hoping this gets better! We have only been on the medicine for 2 weeks. We also live in the country. With that in mind, my dogs do still have some fleas and ticks! The medicine, in my opinion, takes to long to kill the ticks. I am hoping that after another treatment it will work much better. I recommend this because it does work, we just have an extreme situation! May 31, 2014
Rated 4 out of 5 by easy to apply easy to use and apply to our 5 monthold collie pup April 24, 2012
Rated 5 out of 5 by Advantix 11 is the best on the market I have three dogs. A 2 1/2 year old pit bull ( sweetest guy you will ever meet). A 2 1/2 year old boxer and an 11 month old boxer. The advantix has worked the best for them and I have seen no adverse reactions when in use. April 16, 2012
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