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K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 6-Mo Supply

4.5 4.5 out of 5 stars 42,520 ratings

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6 Pack
XL Dog only

Purchase options and add-ons


About this item

  • 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

Customer ratings by feature

Easy to use
4.2 4.2
Water resistance
3.9 3.9
Comfort
3.5 3.5
Value for money
3.5 3.5

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K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 6-Mo Supply
K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 6-Mo Supply
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Price-12% $79.98
List:$91.18
-10% $17.99
List:$19.99
$14.99$79.98$57.40
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it Mar 29 - Apr 1
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to use
4.2
3.2
4.0
4.2
4.2
Value for money
3.5
1.8
3.1
3.4
3.5
Comfort
3.5
2.8
3.6
3.5
Flavor
2.8
2.1
3.3
2.8
Sold By
Amazon.com
PETIQ
kingmo Pet
Amazon.com
Better Price For You LLC
target audience
Dog
Dog, Dog, Dog, Dog, Dog
Dog
Dog
Dog
age range
7 weeks and older
All Life Stages
All Life Stages
7 weeks and older
7 weeks and older
form
Topical
Drops
Drops
Topical
Topical
volume
24 milliliters
1 quarts
16 milliliters
active ingredients
Imidacloprid, Permethrin, Pyriproxyfen
Fipronil, Cyphenothrin, (S)-methoprene
Fipronil 9.8%, (S)-methoprene 8.8%, OTHER INGREDIENTS 81.4%, TOTAL 100.0%
Imidacloprid, Permethrin, Pyriproxyfen
Imidacloprid, Permethrin, Pyriproxyfen
weight
0.1 pounds
0.15 pounds
0.13 pounds

From the manufacturer

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Application key benefits

Easy-to-apply topical solution – no hard-to-swallow pills

Easy Application - Step 1

Holding the tube upright and pointed away from you and your pet, remove the cap from the applicator tube. Turn the cap around, place it back on the tube and twist to break the seal.

Easy Application - Step 2

Evenly apply the entire contents of the tube along the top of the dog’s back, from the shoulder down to the base of the tail. The number of spots depends on the size and weight of the dog (please refer to the product label). At each spot, part the hair until the skin is visible. Place the tip of the tube on the skin and gently squeeze a portion of the solution on the skin.

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image image image image image
K9 Advantix II Extra Large Dog Seresto Large Dog Advantage II Extra Large Dog advantus Advantage Treatment Shampoo
Customer Reviews
4.5 out of 5 stars
42,520
4.5 out of 5 stars
99,365
4.5 out of 5 stars
2,969
4.2 out of 5 stars
12,129
4.4 out of 5 stars
1,664
Form Topical Drops Collar Topical Drops Flea Soft Chew Tick and Flea Shampoo
Treatment or Prevention Treatment + Prevention Treatment + Prevention Treatment + Prevention Treatment Treatment
Application Frequency Monthly Every 8 Months Monthly Do Not Exceed One Soft Chew in a 24-hour Period See Product Label
Kills Fleas?
Kills Ticks?
Kills Mosquitos?
Kills Lice?
Starts to Kill Fleas Within 12 hours 24 hours 12 hours 1 hour On Contact

Product guides and documents

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 7.75 x 1 x 4.25 inches; 1.6 ounces
  • Manufacturer recommended age ‏ : ‎ 1 month and up
  • Item model number ‏ : ‎ 81520429
  • Department ‏ : ‎ Flea & Tick
  • Date First Available ‏ : ‎ March 20, 2007
  • Manufacturer ‏ : ‎ Elanco US Inc
  • ASIN ‏ : ‎ B004QRJJ0K
  • Customer Reviews:
    4.5 4.5 out of 5 stars 42,520 ratings

Looking for specific info?

Product Description

K9 Advantix II Extra 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 Extra 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 over 55 lbs. to use K9 Advantix II Extra 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 Extra Large Dog is a trademark of Elanco or its affiliates.

Important information

Ingredients

Imidacloprid 8.80% Permethrin* 44.00% Pyriproxyfen 0.44% Other Ingredients 46.76%

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.

Legal Disclaimer

We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product

Customer reviews

4.5 out of 5 stars
4.5 out of 5
42,520 global ratings

Customers say

Customers like the health and flea protection of the pet supplies. For example, they mention it's good for their dog, it treats them well on every application, and it keeps them happy. That said, opinions are mixed on value, comfort, quality, performance, and side effects.

AI-generated from the text of customer reviews

246 customers mention229 positive17 negative

Customers are satisfied with the flea protection provided by the product. They mention that it repels and kills mosquitoes. Some say that it works well for keeping fleas, ticks, and other small biting flies away from pets. Overall, most are happy with the product's flea-protection capabilities.

"...The easy to apply drops repel and kill numerous biting insects. The pack contains six months of around the clock prevention...." Read more

"It works great to kill fleas. You put this in their neck. This is not an edible." Read more

"...I order and prefer this brand as they work very well with biting flies and mosquitos as well as the other pesky fleas/ticks/bugs!..." Read more

"...In my opinion. I also like that it repels in kills mosquitoes. Now it is not a heartworm prevention...." Read more

202 customers mention191 positive11 negative

Customers find the pet supplies easy to use. They mention that the application is easy, and the drops are easy to put on a few dots from shoulder blades to tail.

"...Finally a product that does what they say it does. So easy to put on a few dots from shoulder blades to tail...." Read more

"Excellent price for powerful protection for large dogs. The easy to apply drops repel and kill numerous biting insects...." Read more

"...Perfect for my needs. My furkids review is they are all sleeping peacefully right now, without having to wake up to scratch." Read more

"...I applied the product according to the easy to understand instructions, and within 12 hours there are next to no fleas on either dog...." Read more

113 customers mention84 positive29 negative

Customers like the health of their pets. They say the product is good for their dogs, has no side effects, and treats them well on every application. Some customers also mention that the product keeps their dogs happy and doesn't make them sick.

"...She had no bad reactions whatsoever and it completely eradicated all her fleas and mites within a week." Read more

"Worked as it should and kept my dog happy" Read more

"...Most bang for the buck. Only bad thing is you cant pet them on their back for 48 hours until it absorbs. havent seen a flea since I started using it." Read more

"No side effects, keeps my dog healthy, so far, seems like a great substitute for the Revolution that I have used for ALL of my pets, ever since it..." Read more

2,000 customers mention1,371 positive629 negative

Customers are mixed about the performance of the pet supplies. Some mention that it works well enough to kill the living fleas, and is effective. They say it doesn't lose effectiveness when pets are bathed. However, other customers say that it's not working 100% as expected, and was messy to apply.

"This product work good for my dogs. Great value." Read more

"...However, this is an amazing product, and I recommend it highly." Read more

"Was using Activate II, it suddenly stopped working...." Read more

"Good product" Read more

1,054 customers mention731 positive323 negative

Customers are mixed about the quality of the pet supplies. Some mention that it continuously prevents fleas and ticks, while others say that it doesn't kill or prevent flea.

"...I am thrilled with this stuff no more fleas. My dog is happy again. We ended up infested with fleas...." Read more

"...I did notice that the cats seem to be less itchy with less evidence of fleas. This does not have a strong odor." Read more

"...of times I've used this on my dogs, they seemed to have fleas within a few days...what's up with that?" Read more

"...I can say that my dog was 100% great and it got rid of the fleas that she somehow got during winter!..." Read more

748 customers mention473 positive275 negative

Customers are mixed about the value of the pet supplies. Some mention that the price is worth it, and it's the perfect and economical solution. However, others say that the product is relatively expensive, and a total waste of money.

"...My dog is 80 pounds but I’ll tell you the price is worth it. I still have marks from getting bitten by the fleas...." Read more

"...Now it is a little expensive especially if you have 8 dogs like me. But it is a lot cheaper than at the vet and it works just as well. In my opinion...." Read more

"This product work good for my dogs. Great value." Read more

"Excellent price for powerful protection for large dogs. The easy to apply drops repel and kill numerous biting insects...." Read more

261 customers mention103 positive158 negative

Customers are mixed about the comfort of the pet supplies. Some mention it works great on their dog, with no more itching or scratching. They say it doesn't cause issues on their skin, while others say it makes their pets itch.

"...does seem to have gotten rid of the fleas... Although he is still itching quite a bit...." Read more

"...My dog had no problems with it going on and evidently it doesn’t sting or anything because he was fine. The fleas are gone. It wasn’t just on him...." Read more

"...Only lasted two weeks and she was itching and scratching...." Read more

"It was hard to squeeze and I couldn't tell if all of it came out" Read more

140 customers mention84 positive56 negative

Customers are mixed about the side effects of the pet supplies. Some mention that it works and has no adverse effects on their dogs, while others say that it contains dangerous chemicals and is not safe to use.

"...They've had no adverse effects from the ingredients (ages 10 weeks, 3 years, and 6 years old). I will buy again." Read more

"...This product has many warnings that it contains dangerous chemicals. Why did I get a package that was deliberately opened?..." Read more

"...It is more expensive, but she likes the flavor and it doesn't bother her at all." Read more

"...to treat and prevent fleas, ticks and mosquitos, but it is also safe for my pet and does not cause issues on their skin." Read more

Flea killer dog not included
5 Stars
Flea killer dog not included
Well he's a happy camper, not sure how you're supposed to rate something you can't experience.From an observer standpoint, he's happy, he's not scratching his butt off anymore and in general he's a happy old man, dog not included
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