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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 707 reviewers.
Rated 4 out of 5 by Works great on Baby! My daughter told me that K9 Advantix II was the best flea and tick treatment....and she was right! It isn't the cheapest, but you can be sure that it will work. It's the best we've used on Baby ~ our 14 year old Rottweiler. October 9, 2014
Rated 5 out of 5 by Seems to be effective for fleas; hard to tell about mosquitoes. Have used for 2 months. Previously used Advantage II for flea control. However, switched to Advantix for protection against mosquitoes during summer. Think it helped with those, but can't be sure. Prefer Advantage II otherwise, because feel more comfortable with safety of ingredients. No adverse effects, however, with Advantix. October 1, 2014
Rated 5 out of 5 by Best product available I have tried several flea and tick medications and find that this one works the best for my dogs. Since I have been using K9, my dogs have had no fleas at all and only two ticks and they were dead ones. I just wish these medications weren't so expensive. September 29, 2014
Rated 5 out of 5 by Great product! We have three dogs and love the K9 Advantix II. We highly recommend it. It has kept our dogs flea free for years. September 29, 2014
Rated 2 out of 5 by Confusing name with K-9 advantage Ordered this by mistake needed K-9 Advantage. Not nearly as effective September 23, 2014
Rated 5 out of 5 by excelent product I have used this product for many years and it works great. September 17, 2014
Rated 5 out of 5 by great price I was willing to try product because of cost and amount received. this is only first month of use. seems to be working quite well September 12, 2014
Rated 5 out of 5 by Checks off all of protection needed. I selected this product so as to be sure that my loving pets are protected from everything that is harmful to them. It is easy to apply. September 11, 2014
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Customer Q&A

Bayer Flea & Tick K9 Advantix II for Dogs http://cdn.petcarerx.com/img/PrdImg/095x095/11357_001_m.jpg 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 709 ratings.