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Item #:
51665899
K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs 55 lbs+, 2-Monthly Treatments
90% of respondents would recommend this to a friend
Item #:
51665899
TTD 343
Price Details
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Only 12 items left in stock.
Order now and get it around Thursday, September 17
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K9 Advantix II helps defend your dog against fleas, ticks, mosquitoes, biting flies, and lice.
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What Stands Out
Broad Spectrum Protection
K9 Advantix II effectively targets fleas, ticks, and mosquitoes, providing comprehensive protection for XL dogs over 55 lbs, ensuring your pet stays safe from multiple pests all month long.
Quick-Acting Formula
The fast-acting topical treatment begins to kill pests within hours, offering immediate relief and preventing infestations, giving dog owners peace of mind and swift protection for their furry companions.
Easy Application
With its convenient monthly application format, K9 Advantix II simplifies pest management; owners can easily administer it without complicated procedures, making routine care quick and hassle-free.
Product Details
- Monthly topical treatment for XL dogs over 55 lbs.
- Protects against fleas, ticks, mosquitoes, biting flies, and lice
- Kills fleas within 12 hours of application
- Repels and kills on contact, preventing fleas from biting
- Fragrance-free and waterproof after 24 hours
- No prescription needed
| Brand | K9 Advantix II |
| Animal type | Dog |
| Weight range | Over 55 lb (0 grams) |
| Pet size | Extra Large |
| Minimum weight | 55 lb (24.95 kg) |
| Max Weight | 55 lb (24.95 kg) |
| Parasite type | ticks, fleas, biting flies, lice |
| Protection period | 8-Month |
| Medicine form | Topical |
| Instructions | Follow instructions on package |
| Pet flea & tick treatment type | Drops |
| Animal lifestage | All Lifestages |
| Active ingredients | Imidacloprid |
| Features | Waterproof |
| Ingredient properties | Antiparasitic |
| Size | 1 |
| Net content statement | 00724089060983 |
| Product net content uom | Count |
| Product net content parent | 2 Count |
| Items included | lea & Tick Prevention |
| Count per pack | 2 |
| Treatment effective time | 8 months |
| Treatment time | 30 days |
| Active ingredient name | Imidacloprid 10.26%, Permethrin 49.90% |
| Ingredient preference | Fragrance-Free |
| Dispenser style | Dropper |
| Recommended use | At-Home |
| Result time | 12 h |
| Animal health concern | Parasite |
| Vet approval group | VET RECOMMENDED |
| Enteral medication & supplement form | Liquid |
| Topical medication form | Solution |
| Dosage | Monthly Topical |
Who Should Buy?
-
Large Dog Owners
Ideal for owners of dogs weighing 55 lbs or more, ensuring effective flea and tick protection.
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Outdoor Pets
Great for active dogs that spend significant time outdoors, reducing the risk of flea and tick infestations.
-
Veterinarian Recommendations
Often recommended by vets due to its effectiveness against fleas, ticks, and mosquitoes, making it a trusted choice.
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Small Dog Owners
Not suitable for dogs under 55 lbs; smaller breeds may require different formulations for safety.
Product Description
About This Item
Introducing K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs! This 2-month supply of top-notch flea and tick treatment is specially designed for our furry friends weighing over 55 lbs. With K9 Advantix II, you can rest assured knowing that your beloved pet will be protected against fleas, ticks, mosquitoes, biting flies, and lice. This vet-recommended formula not only kills these pests within 12 hours of application but also repels them on contact.
No more worrying about fleas biting your dog to die! Application is a breeze with this easy-to-apply topical treatment. Simply follow the instructions on the package, and your XL dog will be ready to go. And the best part? It's fragrance-free and waterproof after 24 hours, so your dog can continue to enjoy their favorite activities without compromise. This powerful formula does not require a prescription, making it all the more convenient for you to keep your furry friend protected.
Each monthly treatment provides continuous protection, ensuring that your dog stays flea and tick-free all year round. Please note that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Please handle with care and keep out of reach of children. Choose K9 Advantix II Monthly Flea & Tick Prevention for XL Dogs and give your pet the protection they deserve. Don't let pesky fleas and ticks ruin those tail-wagging moments.
Order now and experience the difference!.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
At what age can I start using K9 Advantix II Extra Large Dog?
Answer: Your dog should be at least 7 weeks old to use K9 Advantix II Extra Large Dog. -
Question:
How long does it take for K9 Advantix II to kill fleas?
Answer: K9 Advantix II kills fleas within 12 hours of application. -
Question:
Is K9 Advantix II safe for waterproof dogs?
Answer: Yes, K9 Advantix II is waterproof after 24 hours of application.
K9 Advantix II All Dog Flea and Tick Editorial Review
K9 Advantix II for XL Dogs has garnered positive reviews from pet owners across different regions, particularly for its effectiveness in controlling fleas and ticks. Many users have transitioned to this product after experiencing issues with their previous flea treatments. The results have been notably swift and effective; for instance, one customer reported seeing a significant decrease in flea presence just 12 hours post-application. This quick action has provided relief, especially for pets suffering from flea allergies, with one owner sharing that their Yorkie no longer needed prednisone due to the implementation of K9 Advantix II. Pet owners have highlighted the satisfaction they have with the ease of use of K9 Advantix II, noting that they adhere to the recommended dosage and frequency—many choosing to dose their pets every three weeks to maintain effectiveness. The product appears to provide reliable protection against pests, with multiple reviewers reporting that they have not seen any fleas or ticks on their dogs since they began using it. Moreover, the product's affordability stands out in comparisons to other treatments on the market, contributing to its increasing popularity among pet owners. K9 Advantix not only appears to deal effectively with fleas at various stages of their life cycle but also repels mosquitoes, adding another layer of protection for both pets and their owners. Overall, K9 Advantix II has established itself as a go-to product for pet owners, especially in areas prone to flea infestations, with many sharing their appreciation for its thorough and effective capabilities. **
Customer Reviews & Ratings
6711 customers ratings
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5 Star
71%
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4 Star
11%
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3 Star
5%
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2 Star
2%
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1 Star
8%
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Pros
- Quick results, often visible within hours.
- Effective at controlling fleas and ticks across all life stages.
- Helpful for pets with flea allergies.
- Does not cause side effects even for sensitive pets.
- Cost-effective compared to other flea treatments.
- Also repels mosquitoes.
Cons
- Some users note the price has been increasing over time.
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
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“The delivery was fast and the product came undamaged and authentic.”
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“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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TTD 343
Order now and get it around Thursday, September 17
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QTY:
Only 12 items left in stock.
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Features & Benefits
- Protects dogs over 55 lbs.
- Kills fleas within 12 hours
- Kills and repels on contact
- Fragrance-free and waterproof
- No prescription needed
- Effective for both indoor and outdoor dogs
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