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K9 Advantix II Flea & Tick Treatment for Extra Large Dogs Over 55-lbs

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6 treatments
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  • 4 treatments
  • 6 treatments
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Description

K9 Advantix II Flea Treatment for Dogs offers broad spectrum flea control and protection against ticks and mosquitoes, too. It is specifically formulated for dogs and comes in a convenient, monthly topical application that not only kills but also repels fleas, ticks and mosquitoes. K9 Advantix II also kills all life stages of fleas, repels biting flies and kills lice. It contains imidacloprid, permethrin and pyriproxyfen that work in concert to repel and kill parasites that can potentially transmit disease-causing organisms. K9 Advantix II is a flea treatment for use on dogs 7 weeks and older. Do not use K9 Advantix II on cats.

Key Benefits

  • Specifically formulated for dogs and comes in a convenient, monthly topical application that not only kills but also repels fleas, ticks and mosquitoes
  • Repels and kills ticks of all types including Deer ticks, American dog ticks, Brown dog ticks and Lone Star ticks
  • Prevents fleas on treated dogs from infesting your home
  • Kills fleas on dogs within 12 hours and continues to prevent infestations for a month
  • Contains imidacloprid, permethrin and pyriproxyfen which work to repel and kill parasites that can potentially transmit disease-causing organisms

Cautions

Use only on dogs and puppies 7 weeks of age and older and weighing 55 pounds or over. DO NOT USE ON CATS. Keep out of reach of children. Do not get this product in dog's eyes or mouth. As with any product, consult your veterinarian before using this product on debilitated, aged, pregnant or nursing animals. Individual sensitivities, while rate, may occur after using ANY pesticide product on dogs. If signs persist, or become severe, consult a veterinarian immediately. If your animal is on medication, consult your veterinarian before using this or any other product.

Active Ingredients

  • Imidacloprid 8.80%
  • Permethrin 44.00%
  • Pyriproxyfen 0.44%

See all items by K9 Advantix II

  • Item Number
    74407
  • Brand
    Bayer
  • Breed Size
    Large, Giant
  • Lifestage
    Puppy, Adult

Instructions

How to open:

  • Be sure tube is at bottom of pouch.
  • Using scissors, cut the pouch across the top and remove tube.

How to apply:

  • Use only on dogs.
  • Remove applicator tube from the package. Use scissors and peel down foil.
  • Hold applicator tube in an upright position. Pull cap off tube.
  • Turn the cap around and place other end of cap back on tube.
  • Twist cap to break seal, then remove cap from tube.
  • The dog should be standing for easy application. The entire contents of the K9 Advantix II tube should be applied evenly on the top of the back from the shoulder to the base of the tail. At each spot, part the hair until the skin is visible. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin. 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.
  • Discard empty tube.
  • In cases of severe pest infestations, retreatment is allowable earlier than 4 weeks. Do not retreat more often than once every 7 days. After pest control is attained, return to a monthly retreatment schedule.

Frequently Asked Questions

How is K9 Advantix II different from K9 Advantix?

With the addition of an insect growth regulator (IGR), K9 Advantix II kills all life stages of fleas. K9 Advantix II also prevents development of fleas, flea eggs, larvae (maggots), and pupae (cocoons), and prevents fleas on a treated dog from infesting your home.

What is the benefit of repellency?

Repellency helps prevent ticks, fleas, and mosquitoes from attaching, biting or feeding. A repelled parasite doesn’t bite or attach. If it doesn’t bite or attach, it can’t transmit the organisms that may cause disease.

What is the difference between K9 Advantix II and other tick and flea products?

K9 Advantix II repels and kills ticks, fleas, and mosquitoes. It repels biting flies and kills lice, too. Its repellency activity and broad spectrum make K9 Advantix II different from other tick and flea products.

Is K9 Advantix II waterproof?

Yes. There is no need to reapply the product after weekly swimming or a bath. For best results, use a non-detergent shampoo.

Can I use K9 Advantix II on my cat?

No. K9 Advantix II must not be used on cats because of a cat’s unique physiology and inability to metabolize certain compounds.

  1. K9 Advantix II Use & Care Instructions

Size

Dog Weight K9 Advantix II Volume
10 pounds and under Small Dog 0.4 mL tube
11 to 20 pounds Medium Dog 1.0 mL tube
21 to 55 pounds Large Dog 2.5 mL tube
over 55 pounds Extra Large Dog 4.0 mL tube

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Customer Reviews

515 reviews 515 Reviews 4.7 out of 5 Stars
  • 5 Stars
    82%
  • 4 Stars
    12%
  • 3 Stars
    2%
  • 2 Stars
    2%
  • 1 Stars
    3%

95% Recommend

95% of reviewersrecommend this product

4.7 / 5
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  • Keeps the fleas and ticks away!

    By on

    I've been using this on our dog for two years now and while he doesn't roam in the woods much this product has been highly effective. He's only gotten a single tick on him and that was because we had forgotten to administer his K9 Advantix that month! Otherwise not a single tick or flea sighting! One thing I notice is that for a few days after we apply this he tends to rub his back against the walls and furniture. While there are no visible signs of irritation on his skin or fur it does seem to bother him to some extent for a few days after application.

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  • Happy Dogs, Happy Mom!

    By on

    I have always used Seresto collars, they were easy and worked very well. The prices have gone up this year and I was looking for something just as good and more affordable. I have 3 large dogs and they are very active, especially in the summer. Running, playing, swimming, and we have over 100 acres, so I needed something that would be reliable and affordable this season, and I needed it yesterday. I shopped everywhere on line to find the best deal, and as always Chewy.com came thru for me and my dogs. My order arrived today and I saved $$. Chewy.com has always been the best place to shop, for almost all of my needs. My cats and dogs, and myself are lucky to have Chewy and their wonderful team I have always used Seresto collars, they were easy and worked very well. The prices have gone up this year and I was looking for something just as good and more affordable. I have 3 large dogs and they are very active, especially in the summer. Running, playing, swimming, and we have over 100 acres, so I needed something that would be reliable and affordable this season, and I needed it yesterday. I shopped everywhere on line to find the best deal, and as always Chewy.com came thru for me and my dogs. My order arrived today and I saved $$. Chewy.com has always been the best place to shop, for almost all of my needs. My cats and dogs, and myself are lucky to have Chewy and their wonderful team! As for K9 Advantix, I am positive I made the right choice for my babies. Happy Summer! … more

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  • Does not work on my dog

    By on

    I have used Trifexis in the past for my dogs heart-worm, tick, and flea protection. Since I had to give my dog an injection for his heart-worm protection last time I had to buy a separate flea and tick protection. I purchased the K-9 Advantix 11 for my 4 year old bulldog and gave him a dose and 2 weeks later I continue to find fleas on him. Hoping I can go back to the Trifexis in the future.

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  • Works great!

    By on

    Ordering was easy and shipping was next day delivery. I bought the xl dog 6pk on chewy at the same cost of a xl dog 3pk at the farm stores. Bought it for my 3 dobermans. I was a little concerned about how my senior blue would react with his sensitive skin. Hes had no redness, flaky skin or digging!! This product is working great for all 3 of my fur babies!!

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  • Too Greasy for Goldendoodles

    By on

    This is not a review about the effectiveness of K9 Advantix. I've only used it twice and though I've not found a tick or a flea on my dog, it is still a bit wintery outside. I just cannot get past the greasiness of this product! I have a Goldendoodle who has very curly, non-shedding hair, and this makes an absolute mess on her. I have to give her a bath and really scrub the application spot just to get rid of it, and this is days after I've applied it! Will definitely not be reusing this product, and most likely will donate what I have left to my local shelter and buy something else. If you have a poodle or a doodle, use caution when applying this!

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  • Great Product

    By on

    I buy this every year. I live in a rural area and need extra protection for my dogs. This is the answer and works great! Also I might add that one of my dogs is a German Wirehair and she hunts alot without getting any pests hitching a ride. I was lucky and was able to get a good price on it through Chewy.com.

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  • Tried and true

    By on

    I've used K9 Advantix II for almost 20 years on two dogs. Application is easy, though the dogs seem to not like the sensation when I apply it. Very effective for both dogs over the years - even in Florida where other dog owners told me it didn't work for them. The residue (oily application area) is the only drawback, but it DOES help to remind me that I should be careful to not touch the area or allow others to do so. T-Boy, however, does not appreciate being kept out of our pool for a couple of days after application; he misses diving in after his tennis ball - so much ball-chasing time wasted!!

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  • Best product on the market

    By on

    We recently went on a short 'hiatus' from flea/tick prevention for our GSD after Sentinel was not working and her incessant itching continued. We tried multiple different baths and ways to help to no avail. We finally decided after comparing MANY different products and reviews to try K9 Advantix. Within half an hour, all itching stopped- this stuff is GREAT! We have a happy dog who is not constantly bothered by the need to itch, scratch, or bite anymore.

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  • So far so good!

    By on

    Have been using this product since March 20th and today is April 4th. Layla is a 60lb German short hair hound mix so we went with the extra large dog treatment. She hasn't had any side effects and has been in the woods 4 times for a total of 11 hours and to the park in our area every day for 2 hr walks every other time with no sign of fleas or ticks.

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  • Advantix24

    By on

    Always buy this product each year for my dogs and keep a calendar for application dates otherwise if you miss one don't expect it work continuously. LLove and so do my dogs. Love Chewy for their fast and excellent service I'm new to the company and will not be using my old magazine service again

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