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🐾 Protect your pup like a pro—fast, fuss-free, and flea-free!
K9 Advantix II Medium Dog is a vet-recommended, topical flea, tick, mosquito, biting fly, and lice treatment for dogs 11-20 lbs. It kills fleas within 12 hours and repels pests on contact, preventing bites and infestations. The fragrance-free formula is waterproof after 24 hours and easy to apply monthly without a prescription, ensuring your dog stays comfortable and protected indoors and outdoors.













| ASIN | B07NX5F5YB |
| Active Ingredients | Imidacloprid, Permethrin, Pyriproxyfen |
| Age Range Description | 7 weeks and older |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #394 in Pet Supplies ( See Top 100 in Pet Supplies ) #7 in Dog Flea Drops |
| Brand | K9 Advantix |
| Brand Name | K9 Advantix |
| Customer Reviews | 4.4 out of 5 stars 33,802 Reviews |
| Global Trade Identification Number | 00724089114921 |
| Item Form | Topical |
| Item Type Name | Topical |
| Item Volume | 1 Milliliters |
| Item Weight | 0.63 Ounces |
| Manufacturer | Elanco US Inc |
| Manufacturer Part Number | 90204384 |
| Model Number | 90204384 |
| Scent | Unscented |
| Scent Name | Unscented |
| Target Species | Dog |
| UPC | 724089114921 |
| Unit Count | 1 Count |
| Volume | 1 Milliliters |
V**T
After half a year of fleas, switching to this product completely got rid of them!
Cannot recommend enough! I live in the middle of the mountains next to a large national forest. There's deer, beer, turkey and all sorts of wildlife moving through my yard and in the woods year round, visibly agitated by fleas. My dog of 14 years finally got fleas (she's an inside dog with lots of outdoor playtime), as I've been thorough with checking her fur during brushings and baths. I usually just give her monthly flea baths which sufficed, but after a neighbor clear cut their property I've had an influx of wildlife on my property and I think that contributed to my dog getting fleas, I'm not sure. Regardless, she had fleas and they became an irritating presence within my home. Unfortunately, there's plenty of carpet for them to hide in and lay eggs. Yuck! I tried everything to get rid of them! Carpet powders, flea baths (different brands), furniture spray, cheap flea drops.. nothing worked. I battled with them for almost 6 months!! My poor dog was waking up constantly scratching and pacing back and forth throughout the house. I felt like an awful parent and was going crazy before finally deciding to look into the more expensive options.. Now, considering how much I spent on cheaper alternatives that didn't work or get rid of the problem at the source, I really wish I would've went straight for the higher priced option first. Within a matter of weeks of using this product I saw a quick decline in fleas inside the house and on my dog. Within one to two months, they were completely gone! I was in complete shock. I cannot praise this product enough. Maybe it's so effective on the fleas in my area since I live in the rural countryside where they're not used to it, as opposed to city fleas, so your mileage may vary. But for me this was a miracle product and I will be using this as a preventive measure in the summer months, with a periodic dose in the winter. If you struggled with fleas for months and months like I have, you will know the complete relief that comes with a flea-free home. Don't skimp! It may be more expensive than the alternatives but trust me with I say I tried all of them and nothing came close to getting rid of them, whereas this treatment was so fast and effective I was left nearly crying when I saw my sweet dog sleeping soundly through the night. :)
A**R
Thankfully, it works!
We have fought fleas on all fronts in our hot and muggy rural area. Frontline and the generic version- useless. Sprayed the land, treated our home, sprayed our dog with an additional temporary spray. This is the first time we've ever had such problems. Dog was constantly scratching, visible fleas and flea dirt. Flea comb simply full of mature fleas and flea dirt. Two vet visits in which we were told the next step was a yearly and expensive treatment. Thankfully, found this on Google as vet recommended. Bought a dose here. It arrived yesterday and we immediately applied as directed to 15 lb dog. He was fine upon application. No major problems afterwards but did began to claw himself aggressively and nip at his paws. Found those relatively minor results on the carton safety data and saw no reason to be overly concerned. I did give him the dose of antihistamine as prescribed by our vet. I think the fleas were 'abandoning ship'! He became drowsy within about 40 minutes settled down and slept soundly all night. No raw spots or other problems today but he looks like a newer, improved dog today. He is basically white. Today there were no visible fleas or flea dirt. Yes! So glad we found this product, all I will buy again! Great customer support because I called the # on the product box today just to check his reaction. They were great.
2**S
Been using it for over 10 years
I live on the Gulf Coast. Mosquitos are a big part of life here and that is one of the main reasons I chose Advantix and stick with it. It repels and kills mosquitos. I have a miniature schnauzer, so her belly is pretty low to the ground and they love to lunch on her. This does the trick. As far as fleas: Never have had a one and fleas are terrible here. Never. Not. Once. I usually buy an entire year at a time so I'm never without because if you stop treatment, those fleas will find you. Biting flies, repels those too. Now we're on to ticks. I'll be honest, this does nothing for my dog and ticks. I do have a fenced in very small yard in the middle of downtown. There are no ticks here, so it's not a worry for me. When I first took her hiking is when I realized Advantix must be candy for ticks. She was covered. It didn't repel and it didn't kill them. I talked to the vet about it she said that others had said that about Advantix and she recommended I switch. I didn't want to because of the mosquitos so she told me about Virbac Preventic tick collar when we go hiking. I came home, went straight here and bought a 2 pack. It's not cheap but I tell you it works. Went camping and a few ticks were brave enough to jump on her but they struggled; they couldn't get a hold of her and they started getting weird and just fell off. None attached and only 3 tried it. So if you have a tick issues give that a try but as for Advantix and fleas/mosquitos/flies, just do it. Your furbaby will thank you.
A**.
Watch for burns when the weight is close between doses.
After nexguard plus was found to be causing my frenchie liver and pancreatic issues for almost two years, I decided to try this instead. Caused skin burns on my 27lb frenchie... got the smaller breed dose after that and monitored his skin closely after and it was fine. Just beware and watch their skin after application when the weight is close between doses. I went by the weight for the dose and the smaller breed dose did not cause the burns and is still effective treatment.
S**S
No itchy no scratchy
Cost is worth it. No fleas.
M**R
Does not kill fleas
I have used these for years and the last 3 months supply has been a disappointment they are not killing the fleas at all. My babies still have fleas crawling all over them after application. I will no loner be buying this product.
P**R
Works where Frontline does not, BUT.
Last year I adopted a puppy and took him to work with me every day for the next 8 months. The company I worked for in San Francisco is dog-friendly, and there were upwards of 100 dogs in the building on any given day. Since much of the building is carpeted, fleas were definitely an issue and pretty soon my pup had them. I used Frontline and treated my apartment and the carpet around my desk at work with both diatomaceous earth and something to kill the eggs, but 2 weeks later, he had picked them up again. I waited one more week, applied Frontline again, and within two weeks he was infested again. A co-worker told me his wife is a vet tech and according to her, fleas in some areas are becoming immune to Frontline. I wish I could tell you whether it's NorCal or SoCal that had the Frontline-immune fleas, but I was traveling back to L.A. every weekend during this period so it's possible he was picking them up there too... though not as likely, as his exposure to other animals on weekends was minimal. On the advice of a friend who swears by Advantix II, I switched to using it and voila! No more fleas. It definitely worked, and quickly. I was convinced. BUT, last night I used it on my younger dog for the first time this year, and the new dog we adopted in December. I used the size-appropriate dose for each. The new, smaller dog (7 lbs) seems fine but my younger dog (around 15.5 lbs) has been really agitated and distressed since then, and is biting at his tail and seems to be unable to get comfortable. He's not crying or whining, but he's alternating between hyper and agitated or clingy. He's also been panting occasionally despite his short summer haircut and the air-conditioned house. He doesn't seem to be in any pain but something's up. Assuming nothing escalates and he seems to feel better, I'll use this again because it's better than a flea infestation, but I would only recommend this with the caveat to watch your dog very carefully after application. Edited to add: As it turns out, my dog was fine and I'm pretty sure his behavior is because it was itchy - he went to the groomer earlier that day, and my theory is that the natural oils in his skin had been stripped away. When it's time for him to be treated again I'll make sure to wait a few days after the grooming.
B**A
Best Product
Best product! I have a few dogs and I have tried many different things and this is the only thing that works. Thank you
S**4
Buena relación calidad-precio
En la caja vienen 6 pipetas, como se indica en la descripción: 4 de ellas vienen en el sobre hermético de la propia caja y las otras 2 vienen sueltas (la caja realmente es de 4). Contenta con la calidad de Advantix, no me arriesgo a probar con otra marca. Muy recomendado por la relación calidad-precio.
P**I
Recomendable
Recomendable
A**R
السعر مرتفع مقارنة في جودة المنتج
السعر مرتفع مقارنة في جودة المنتج
J**Z
llego en Fecha
Llego en la fecha comprometida. Aparte traia un pequeño detalle, que es de agradecer, con unas chuches para el rey de la casa, para que el "trago" de la desparasitazación sea más dulce.
Trustpilot
2 days ago
1 month ago