🐾 Protect your pup like a pro — fast, fuss-free, and foolproof!
K9 Advantix II Small Dog is a vet-recommended, topical flea, tick, mosquito, biting fly, and lice treatment designed for dogs weighing 4-10 lbs. It kills fleas within 12 hours and provides waterproof protection after 24 hours. This fragrance-free formula repels and kills pests on contact, preventing infestations without the need for a prescription. Available in multi-dose packs for continuous monthly protection.













| Active Ingredients | Imidacloprid, Permethrin, Pyriproxyfen |
| Brand | K9 Advantix |
| Customer Reviews | 4.3 out of 5 stars 18,860 Reviews |
| Item Form | Topical |
| Item Volume | 1.6 Milliliters |
| Item Weight | 0.01 Pounds |
| Scent | Unscented |
O**Y
Good price
Been using for years with no issues! Grat product!
A**Y
The best flea medication for my dog!!
This is the perfect flea and tick medication for my little Chihuahua. Works so well.
M**N
Good
Fast acting solution for flea outbreak. My dog didn’t have a bad reaction or anything
M**J
Effective to an extent
K9 Advantix does work. I’ve used it for two summers now. My only disappointment is that the product doesn’t prevent or stop new fleas from attaching to your pet. It will get rid of fleas once they’ve attached, but won’t stop fleas from attaching. It would be nice if this product could work as a preventative.
D**N
Best price
Works very well, excellent price
J**Y
Waste of money
Can’t say positive or negative if it’s effective on ticks. Seems to do a decent job against mosquitoes. However that’s where the positives end. This ATTRACTS FLEAS. That I’m absolutely convinced of. I’ve had multiple flea issues with my dog using this. So either the fleas in Eastern NC are immune to this or this stuff is counterfeit.
S**C
Seems to work
I have been using this since I got my dog. So far no ticks or fleas. She does not really go anywhere except for on a walk each day, so not sure if she has even been around fleas or ticks, but I keep giving this to her every month just to make sure.
F**O
Pretty sure it made my dog sick
We followed the instructions to a T. It's not our first time with K9 Advantix, but it was the first in a long time, as we have no problems with fleas and ticks in our area,but wanted to make sure o ur pups were protected against them while out in the wilderness for a camping trip. About 4 days after the application, our 6 yro Yorkie became extremely lethargic, stopped eating, drinking, and had several bouts of diarrhea. My husband noticed a rash on his back, from the base of the neck all the way to the middle of the tail. Thinking it to be an episode of gastroenteritis, we switched him to a bland diet peppered with probiotics, administered an anti-hemetic and kept an eye on his fluid intake. No changes. In several trips to the vet, we had his blood, urine and stools tested - no signs of g.i., heart or kidney issues. X-Rays and ultrasound showed no abnormalities. The doctor was at her wits' end, as we tried and tested everything we could - when we mentioned the flea/tick treatment, she showed concern and advised us to be aware of the adverse reactions such treatments might bear, especially on small breeds. This situation went on for almost a month until he started showing improvement. I'm cannot say I'm 100% sure K9 Advantix was the root cause of my dog's sickness, but considering the amount of tests ran and the fact it was the only "change" in his routine over the course of that month, I can't rule it out either. Just be careful and aware of the possibility of side-effects. We'll not be using it anymore, and with that we cannot recommend it again. :(
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2 months ago
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