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Your cart is empty.4.3 out of 5 stars
K9 Advantix II Small 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 Small 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 4-10 lbs. to use K9 Advantix II Small 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 Small Dog is a trademark of Elanco or its affiliates.
nclovely1
Reviewed in the United States on March 6, 2025
This worked great. It cleared up our flea problem in just a day. The dog tolerated the medication well. I recommend this product.
Rachel Lucas
Reviewed in the United States on March 5, 2025
My vet recommended this brand for my dogs. This is one of the best flea medications I’ve found for my Pomeranian. He is 5-6 pounds and has access to the backyard with a doggy door. He is outdoors a decent bit and it’s been critical to keep flea/tick medication on him at all times. This medication works well and prevents fleas. It’s an easy application and doesn’t bother my dog initially. I find he usually gets a little itchy/excited/anxious a couple hours after it’s applied, but that does subside. I will continue to use this brand.
Genie H
Reviewed in the United States on March 5, 2025
Works really well on my 4 lb Yorkie
amberly
Reviewed in the United States on March 10, 2025
Four stars only because I’m having to apply it every two weeks instead of four. Works wonderful for those two weeks. Stops working after that.
hm
Reviewed in the United States on August 7, 2024
*** Be advised that the product is 5 star.This particular box had no affect on fleas whatsoever. All others over past 3 years work great.I recently bought directly from the company replacement boxes and those work great as usual(This particular box did not work at all. The fleas were active, happy and on furniture and people.)
David Houck
Reviewed in the United States on December 3, 2024
K9 Advantix II for small dogs is a must-have for keeping my little one safe from fleas, ticks, and mosquitoes. It’s super easy to apply and provides a 6-month supply, which is fantastic for long-term peace of mind. The treatment works quickly and effectively, and I love knowing that my dog is protected from those pesky pests. As a vet-recommended solution, I feel confident that it’s both safe and reliable for my dog’s health. If you want to keep your small dog comfortable and pest-free, this is the product you need! 🦟🛡️
devdevil85
Reviewed in the United States on October 26, 2024
This gave my Pomsky (Pomeranian/Husky) seizures, so be VERY careful of giving this product as not all dogs react well. Last summer my dog had issues like vomiting, small weird twitching things I thought might be small seizures so I took her to several different vets and they couldn't figure out the cause. It calmed down over winter and she was doing great UNTIL I gave her the first dose of flea medicine for the year. She is typically with me all day but I left the room for a few minutes and when I came back I found her excessively drooling, along with several piles of vomit and pee on the floor. I took her to the Urgent Care Vet and they couldn't figure out the cause (now I know she had a seizure). She was doing great again UNTIL I gave her the next dose of this flea medicine and the next day was the first time I saw my dog have a full blown seizure and yet again she was drooling excessively, vomited, peed on the floor, and couldn't walk straight. I took her to the vet again and she thought she might have epilepsy. I remembered the prior summer and then discussed with her how she was having some issues last year like vomiting and some weird body movement and what I thought might be very small seizures. BUT that they stopped over winter after I stopped giving her the flea medicine and started up worse this year the day after I started the medicine. The Vet looked up the medicine and video I shared with her of my dog having a seizure and said that the Advantix Flea medicine does have an ingredient that can cause seizures and the other symptoms she was displaying and agreed it very well could be the medicine. She ended up having 1 more seizure 2 weeks after the 2nd flea treatment as the medicine stays in their system for at least 30-days. She has been good since and that was several months ago. I will no longer be giving her flea medicine like this as it is not worth it due to the very serious side effects. So be aware that this medicine can cause serious side effects.
Kimberly mcgrath
Reviewed in the United States on April 7, 2024
I like the idea but it doesn't seem to work very well on my dog after putting it on he still scratches an I can still see fleas running around. So I thought maybe it takes 2-3 months to work well. So I waited an he still has fleas after 3 months of applying . So I'm going to try something different to see if something else works better.
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