K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs 55 lbs+, 2-Monthly Treatments
K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs 55 lbs+, 2-Monthly Treatments
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K9 Advantix II

K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs 55 lbs+, 2-Monthly Treatments

|7,534 ratings
K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs 55 lbs+, 2-Monthly TreatmentsK9 Advantix II Monthly Flea Tick Prevention for XL Dogs 55 lbs 2 Monthly TreatmentsK9 Advantix II Monthly Flea Tick Prevention for XL Dogs 55 lbs 6 Monthly TreatmentsK9 Advantix II Monthly Flea Tick Prevention for XL Dogs 55 lbs 1 Monthly TreatmentK9 Advantix II Monthly Flea Tick Prevention for XL Dogs 55 lbs 4 Monthly Treatments
Count Per Pack2

Key item features

  • K9 Advantix II Extra Large Dog 30-day treatment & prevention protects dogs over 55 lbs. from fleas, ticks, mosquitoes, biting flies and lice
  • Kills fleas within 12 hours of application
  • Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
  • Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
  • No prescription needed

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Customer ratings & reviews

4.3 out of 5 stars
stars
7,534 ratings2,325 reviews
How item rating is calculated
  1. 5 stars71% (5,383)
  2. 4 stars11% (861)
  3. 3 stars6% (444)
  4. 2 stars3% (205)
  5. 1 star9% (641)
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Showing 1-3 of 2,325 reviews

Oct 11, 2026
Reviewer name: lisa
Top Reviewer
Item details
Count per pack: 2
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Fast acting in long lasting

I usually do not have flea problems, and I absolutely do not like flea control that you feed your pet. This word quickly, and the problem was solved.

Helpful?6f02d540-bb15-11f1-8643-3dea92e18e9a43404920
Oct 13, 2026
Reviewer name: Anita
Top Reviewer
Item details
Count per pack: 2
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great and tick prevention with a great price point

Helpful?6f02d540-bb15-11f1-8643-3dea92e18e9a43404920
Oct 14, 2026
Reviewer name: judy
Top Reviewer
Item details
Count per pack: 6
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Reliable brand. Easy to open and apply.

Helpful?6f02d540-bb15-11f1-8643-3dea92e18e9a43404920
Current price is $35.68$17.84/count
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