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At a Glance
Kills fleas and ticks within 12 hours
Kills flea eggs, pupae, larvae, and adults for 30 days
Kills and protects against mosquitoes, which are the primary cause of heartworm

K9 Advantix II for Dogs

K9 Advantix II is an easy to use and effective product for flea and tick protection, beginning to work within 12 hours and lasting for 30 days. [+]

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Customer Reviews

Rated 4.1 out of 5 by 688 reviewers.
Rated 5 out of 5 by This product works. We live in tick infested arer with lots of wildlife including deers. This product keeps our dog free of insects. Not one tick on him this year. August 11, 2014
Rated 4 out of 5 by GREAT Product We were using a different product for many years and noticed this year that the product was not working as good as it use to years before. Still had fleas. so we decided to try K9 Advantix 2. we have a Great Dane so we got the one for his size and it worked GREAT! No more fleas. No more of him biting himself and being miserable. We ordered more for our little dogs and cannot wait for that to come so they are not in misery anymore. Had the same product for them before the K9 Advantix as our great Dane and its not working for them neither so thought we would try k9 Advantix for them to. I would recommend this product. August 11, 2014
Rated 5 out of 5 by finally something that works!! well i have been using frontline on my furbabies for years. then we took a camping trip to the beach and they all came back with a horrible flea problem?? we had to steam clean the carpets,bath all of them and i applied front line immediately after we got home. unfortunately the flea problem just got worse. I started to read stories of others that had used frontline and had the same problem,well i reluctantly decided to give advantix 2 a try and i only bought a one months supply. Well upon arrival i immediately applied the advantix to all of my dogs and patiently waited for the results. Well just like the package said within 24 hrs all of the fleas were gone,gone,gone yeah!!!!!!!!!!! I just ordered a years supply of advantix 2. Just like others have commented the only reason i can give for the problem is that i think fleas get build a resistance to certain flea treatments. who knows after i use advantix for a while i may have to switch back to frontline?? WE WILL SEE?? otherwise i highly recommend this product and if you buy in bulk the price is right compared to what the vet wants!! August 10, 2014
Rated 5 out of 5 by love it my dog has been on this product for 4yrs and we love it. it protect him in a lot of ways August 8, 2014
Rated 5 out of 5 by Great product, great price I have been using advantix on my dog for several years. I told my sister about it and now she uses it for all three of her dogs. You can't beat petcarerx's price! August 5, 2014
Rated 5 out of 5 by This product is very effective. Very easy to use, lasts at least 30 days on my Westie, Silky Terrier and Poodle/Bichon mix. Keeps Mosquitos away which can be very annoying. July 29, 2014
Rated 1 out of 5 by This product DOES NOT work I purchased K9 Advantix ll for small dogs July 1, 2014 for my 3 small dogs. This product killed no fleas and my dogs are totally infested with fleas. I will never buy this product again and will not recommend it to anyone. July 25, 2014
Rated 5 out of 5 by Luv it Just love it. We purchased 3 shitzu puppies and our vet put them on the Advantix II. We have lots of trees and grass and many fleas and mosquitoes. These pups haven't had a flea, tick or anything else. Great product. Thanks. This is the second set of three pups who have been on Advantix and we have always been pleased. July 24, 2014
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Customer Q&A

Bayer Flea & Tick K9 Advantix II for Dogs K9 Advantix II is an easy to use and effective product for flea and tick protection, beginning to work within 12 hours and lasting for 30 days. 56.89 Condition: new In stock! Order now!
K9 Advantix II for Dogs 4 out of 5 0 based on 688 ratings.