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K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21 - 55 lbs. | 4-Mo Supply

  • Based on 39,846 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, May 21
Order within 4 hours and 40 minutes
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Size: 4 Pack


Style: Large Dog only


Features

  • K9 Advantix II Large Dog 30-day treatment & prevention protects dogs 21-55 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 dont have to bite your dog to die
  • Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
  • No prescription needed

Description

K9 Advantix II Large Dog is the veterinarian-recommended formula that helps defend your dog against five pests: fleas, ticks, mosquitoes, biting flies and lice. And unlike other treatments, K9 Advantix II kills and repels fleas, ticks and mosquitoes. K9 Advantix II topical treatment gets straight to work killing fleas on dogs within 12 hours of initial application. This formula stops existing flea infestations and prevents new ones by killing adult fleas on contact so they can’t lay eggs and they don’t have to bite your dog to die. Fleas, ticks, mosquitoes and other pests not only cause discomfort; they may also transmit disease. Monthly use of K9 Advantix II is important to protect your dog against fleas that may cause transmission of tapeworms. This formula also kills fleas which may cause Flea Allergy Dermatitis and flea bite anemia. That’s why K9 Advantix II Large Dog topical, spot-on formula makes application simple - going on in seconds. It's easier than a flea collar and there are no hard-to-swallow pills. You’ll also love that K9 Advantix II is fragrance-free and waterproof after 24 hours of application. Check the product label for information on application and potential side effects. K9 Advantix II pest protection is effective on both indoor and outdoor dogs. Your dog should be at least 7 weeks old and weigh 21-55 lbs. to use K9 Advantix II Large Dog.For the ultimate convenience in care, K9 Advantix II is available over the counter – no prescription needed. And, you can stock up with 2-dose, 4-dose and 6-dose packs so you never miss a monthly treatment. Once K9 Advantix II is applied, your dog is ready to get right back to big-pup cuddles and racing around the park.K9 Advantix II Large Dog is a trademark of Elanco or its affiliates.

Brand: K9 advantix


Item Form: Topical


Scent: Unscented


Age Range (Description): 7 weeks and older


Item Weight: 1.45 Ounces


Active Ingredients: Imidacloprid, Permethrin, Pyriproxyfen


Item Volume: 10 Milliliters


Target Species: Dog


Allergen Information: Allergen-Free


Dog Breed Size: Large


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 7.75 x 1 x 4.25 inches; 1.45 ounces


Item model number ‏ : ‎ 86315041


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ March 4, 2011


Manufacturer ‏ : ‎ Elanco US Inc


Country of Origin ‏ : ‎ Germany


Best Sellers Rank: #76 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Dog Flea Drops


#2 in Dog Flea Drops:


Item Weight: 1.45 ounces


Department: Unisex-Adult


Manufacturer: Elanco US Inc


Country of Origin: Germany


Item model number: 86315041


Date First Available: March 4, 2011


Item Package Dimensions L x W x H: 4.72 x 4.37 x 1.46 inches


Item Dimensions LxWxH: 7.75 x 1 x 4.25 inches


Item Weight: 1.45 Ounces


Brand Name: K9 advantix


Target Audience Keyword: dogs


Directions: Application Instructions 1. Use only on dogs. DO NOT USE ON CATS or other animals. 2. The dog should be standing for easy application. Evenly apply the entire contents of the K9 Advantix® II tube to four to six spots on the top of the back from the shoulder to the base of the tail. 3. At each spot, part the hair until the skin is visible. 4. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin. 5. Do not apply an excessive amount of solution at any one spot that could cause some of the solution to run off the side of the dog. 6. Do not get this product in your dog’s eyes, or allow your dog to ingest this product.


Model Name: K9 Advantix II


Color: Large Dog only


Size: 4 Pack


Material: Plastic


Age Range Description: 7 weeks and older


Number of Items: 4


Style: Large Dog only


Breed Recommendation: Large


Specific Uses for Product: Parasites


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great Product! Will buy again!
Size: 2 Pack Style: Large Dog only
As a dog owner, K9 Advantix II Large Dog Flea, Tick & Mosquito Treatment is an absolute game-changer! Vet-recommended and highly effective, it provides unparalleled protection against fleas, ticks, and mosquitoes. With just one application, I can rest assured that my furry friend is shielded from these pesky pests, allowing them to enjoy outdoor adventures without worry. Plus, it's waterproof, so even swimming won't compromise its efficacy. Say goodbye to flea and tick worries and hello to peace of mind with K9 Advantix II! ... show more
Reviewed in the United States on April 15, 2024 by AHNA BAXTER

  • Works good
Size: 6 Pack Style: Large Dog only
Noticed a difference soon after applying to my dog. No more ticks. He never did have issues with fleas so can't comment on that. He doesn't seem to mind it when it was applied. No skin issues.
Reviewed in the United States on April 20, 2024 by Carol H

  • Bueno
Size: 2 Pack Style: Large Dog only
Funcionó en mi perro.
Reviewed in the United States on May 6, 2024 by Lily

  • Works
Size: 2 Pack Style: Large Dog only
I use it on my mini Aussie. It works good so far.
Reviewed in the United States on May 3, 2024 by Hannah

  • Easy to Use Flea & Tick Med
Size: 6 Pack Style: Large Dog only
K9 Advantix is easy to apply and effective to prevent fleas and ticks. My dogs don't seem to mind the application. I have been using it for years.
Reviewed in the United States on April 17, 2024 by Barbara Gauvin

  • Works great
Size: 1 Pack Style: Large Dog only
I was looking for a product I could order without going through an expensive vet every time, that was also effective for my dog. This product comes as pictured with clear instructions and works great! No fleas for over a month! I started reordering as recommended. I highly recommend this product.
Reviewed in the United States on April 7, 2024 by KM

  • Meh
Size: 2 Pack Style: Large Dog only
I’m not one way or the other on Advantix. I think it falls right in line with the rest of the flea med brands...expensive, dangerous, still see occasional flea. I’m just at the point of not using flea meds and switching to oils…yes I will do research…can’t be worse then flea meds though.
Reviewed in the United States on March 22, 2024 by Brooke

  • Dog protection from fleas
Size: 2 Pack Style: Large Dog only
Easy to use. Really works
Reviewed in the United States on April 30, 2024 by Happy customer

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