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K9 Advantix

K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 2-Mo Supply

    • Based on 31,185 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jan 24
Order within 2 hours and 48 minutes
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Size: 2 Pack


Color: Medium Dog only


Features

  • K9 Advantix II Medium Dog 30-day treatment & prevention protects dogs 11-20 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 Medium 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 Medium 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 11-20 lbs. to use K9 Advantix II Medium 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 Medium Dog is a trademark of Elanco or its affiliates.

Brand: K9 Advantix


Item Form: Topical


Scent: Unscented


Item Weight: 0.32 Ounces


Active Ingredients: Imidacloprid, Permethrin, Pyriproxyfen


Item Volume: 2 Milliliters


Target Species: Dog


Allergen Information: Allergen-Free


Dog Breed Size: Medium


Age Range (Description): 7 weeks and older


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1 x 4.38 x 4.75 inches; 0.32 ounces


Item model number ‏ : ‎ 86314991


Department ‏ : ‎ Flea & Tick


Date First Available ‏ : ‎ January 26, 2014


Manufacturer ‏ : ‎ Elanco US Inc


Country of Origin ‏ : ‎ Germany


Best Sellers Rank: #383 in Pet Supplies (See Top 100 in Pet Supplies) #6 in Dog Flea Drops


#6 in Dog Flea Drops:


UPC: 724089060631


Global Trade Identification Number: 31


Brand Name: K9 Advantix


Age Range Description: 7 weeks and older


Item Volume: 2 Milliliters


Item Weight: 0.32 Ounces


Active Ingredients: Imidacloprid, Permethrin, Pyriproxyfen


Allergen Information: Allergen-Free


Target Species: Dog


Dog Breed Size: Medium


Scent Name: Unscented


Item Form: Topical


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 24

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

    • Works great and is easy to apply
Size: 2 Pack Color: Medium Dog only
I bought this for my dog at my vet's request since he is very allergic to fleas and she said this would work better than what I was using. After using it I can confirm he has no more fleas and it was easy to apply. He sat well for it and didn't give any trouble.
Reviewed in the United States on November 12, 2024 by Michelle
    • AdvantixII works great but!
Size: 4 Pack Color: Medium Dog only
This ORDER had no affect on fleas whatsoever. All others over past 3 years work great. So be advised that the product is 5 star. I bought directly from the company replacements and those work great, as usual. This particular box did not work at all.
Reviewed in the United States on August 7, 2024 by hm
    • Worked wonders when nothing else did
Size: 1 Pack Color: Medium Dog only
I frequently watch after neighbour's dogs and I had one that had a persistent flea problem. I had tried Frontline because I had cats and it worked great on them. I tried everything. Vinegar baths, essential oils, a chewable,shampoo, nothing did anything. I was at the end of my rope, he was literally crying and scratching nonstop. I did the best I could to calm him down. The next day, he was back to his usual self. It's been almost a week and he remains flea free. The dog is a Cavalier King Charles Spaniel, so he's a "medium". This worked overnight and I would highly recommend this product ... show more
Reviewed in the United States on October 23, 2024 by Alexander Cameron
    • Works
Size: 4 Pack Color: Medium Dog only
Works for my 3 dogs. One of my long hair dogs needs a little bit more due to the hair I believe
Reviewed in the United States on November 25, 2024 by Rc
    • 💯
Size: 1 Pack Color: Medium Dog only
Great, I've been using it on my puppy for over a month. My puppy came back from a camping trip full of fleas and I bought it. I only used it once and not once more. It's spectacular.
Reviewed in the United States on November 21, 2024 by Arianna
    • K9 Advantix II
Size: 6 Pack Color: Medium Dog only
My vet. recommends this . Excellent K9 works well for my dahsamd & its cheaper than the other brands.
Reviewed in the United States on November 21, 2024 by lupe
    • She said towatch closely and let her know if the symptoms did ...
Size: 6 Pack Color: Medium Dog only
I felt it was my responsibility to inform pet owners of possible side effects associated with Bayer Advantix II. I purchased this to use on my always healthy and energetic 7 yr. old Lhasa Apso. Approximately 2 hours after application he started showing signs of lethargy and in general refusing to walk. When he did walk he only took one or two steps and then immediately sat down and started scratching or biting his tail and/or the application points. He had never displayed these symptoms before and has always been extremely active, running, barking and doing his guard dog thing. I took him to the vet the next morning. She couldn't find anything specific and said that although it would be unlikely, it could be a reaction to the Advantix since it had been applied only hours before symptoms appeared. She said to watch closely and let her know if the symptoms did not go away. In the meantime I called Bayer's pet health line. The person I spoke to immediately recognized the symptoms and said that it was because of an adverse reaction by my dog to the permethrin used in Advantix, used to repels mosquitoes. It leads to something called paraesthesia which was described as a tingling or pricking (pins and needles) caused chiefly by pressure on or damage to peripheral nerves. Since the Bayer representative knew immediately the symptoms, it sounded like this is a somewhat common problem. I was told that the condition is only temporary and should go away in 24-72 hrs. She said that the pins and needles effect was so irritation that the dogs typically will not walk to prevent this pain or irritation. I was told that the best treatment was to remove the Advantix by giving the dog a bath with Dawn dish detergent. I was told that I could also apply some Vitamin E oil to the application points to relieve irritation. It has now been approximately 36 hrs since the bath with Dawn to remove the Advantix and my dog is still not back to normal. He seems to feel alright and will eat and drink, but he refuses to walk more than a few steps at a time without scratching and then just sitting down. I have had to carry him around so as not to aggravate the situation. Normally he is very active and runs constantly. We have also had to cancel our daily walks of 2 to 3 miles a day. I am closely monitoring his condition and if it doesn't improve by the 72 hr deadline given by Bayer, I'm going to have to take him back to the vet for further treatment. I also gave him a second bath with Dawn just in case I missed some of the Advantix the first time. I realize that there are possible side effects with any product or medication, however since the Bayer representative immediately knew exactly what I was talking about when I described my dogs symptoms, I feel that this problem is possibly more widespread than reported. I know many people use and swear by K9 Advantix II but after what I have seen I definitely do not recommend it. There are also other flea medications that contain permethrin and I would also advise against them also. I have always used Frontline in the past and have had no problems with it. Frontline does not contain permethrin. ... show more
Reviewed in the United States on October 15, 2015 by rlbuzz
    • Works
Size: 1 Pack Color: Medium Dog only
Didn't work very well at all.
Reviewed in the United States on November 17, 2024 by Russell L Streetman

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