---
product_id: 9845018
title: "K9 Advantix II Medium Dog"
brand: "k9 advantix"
price: "€ 158.92"
currency: EUR
in_stock: true
reviews_count: 8
category: "K9 Advantix"
url: https://www.desertcart.fi/products/9845018-k9-advantix-ii-medium-dog
store_origin: FI
region: Finland
---

# Waterproof after 24 hours Kills fleas in 12 hours Protects vs 5 pests K9 Advantix II Medium Dog

**Brand:** k9 advantix
**Price:** € 158.92
**Availability:** ✅ In Stock

## Summary

> 🐕‍🦺 Stay ahead of pests, keep your pup unstoppable!

## Quick Answers

- **What is this?** K9 Advantix II Medium Dog by k9 advantix
- **How much does it cost?** € 158.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/9845018-k9-advantix-ii-medium-dog)

## Best For

- k9 advantix enthusiasts

## Why This Product

- Trusted k9 advantix brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Waterproof Protection:** Rain or shine, stays effective 24 hours post-application
- • **Effortless Application:** Topical, fragrance-free, and stress-free—ditch collars & pills
- • **Rapid Flea Elimination:** Fleas dead within 12 hours—fast relief for your pup
- • **All-in-One Pest Defense:** Repels and kills fleas, ticks, mosquitoes, biting flies & lice
- • **Vet-Recommended & Prescription-Free:** Trusted formula, no vet visit needed—easy monthly care

## Overview

K9 Advantix II Medium Dog is a vet-recommended, topical flea and tick treatment designed for dogs 11-20 lbs. It kills fleas within 12 hours and protects against five pests including ticks and mosquitoes. Waterproof after 24 hours and fragrance-free, it offers convenient, prescription-free monthly protection to keep your dog pest-free and comfortable.

## 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.

Review: Bye-Bye Bugs, Hello Happy Pup 🐾🛡️ - K9 Advantix II keeps fleas, ticks, and mosquitoes far away from my small dogs. Easy to apply, vet-recommended, and works fast — no more itchy, grumpy pups. Peace of mind for me, tail wags for them. Highly recommend if you want a pest-free pooch.
Review: 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. :)

## 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 don’t have to bite your dog to die
- Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
- No prescription needed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Active Ingredients | Imidacloprid, Permethrin, Pyriproxyfen |
| Brand | K9 Advantix |
| Customer Reviews | 4.4 out of 5 stars 33,323 Reviews |
| Item Form | Topical |
| Item Volume | 6 Milliliters |
| Item Weight | 1.76 ounces |
| Scent | Unscented |

## Product Details

- **Active Ingredients:** Imidacloprid, Permethrin, Pyriproxyfen
- **Age Range (Description):** 7 weeks and older
- **Allergen Information:** Allergen-Free
- **Brand:** K9 Advantix
- **Dog Breed Size:** Medium
- **Item Form:** Topical
- **Item Volume:** 6 Milliliters
- **Item Weight:** 0.11 Pounds
- **Scent:** Unscented
- **UPC:** 724089203809

## Images

![K9 Advantix II Medium Dog - Image 1](https://m.media-amazon.com/images/I/719Apa6wL0L.jpg)
![K9 Advantix II Medium Dog - Image 2](https://m.media-amazon.com/images/I/71a-ElIlHLL.jpg)
![K9 Advantix II Medium Dog - Image 3](https://m.media-amazon.com/images/I/71ycK8f5pGL.jpg)
![K9 Advantix II Medium Dog - Image 4](https://m.media-amazon.com/images/I/81EDjQqM2WL.jpg)
![K9 Advantix II Medium Dog - Image 5](https://m.media-amazon.com/images/I/81PFfMmFM7L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: does this work on mosquitos**
A: Yes! It will keep the fleas off the mosquito. But at the same time, it will kill the mosquito. Use only on dogs from 11-20 lbs.

**Q: Does Amazon assure that these medicines are not expired or tampered?  Is the supplier veterinarian approved?**
A: Yes,  Piccardmeds4pets Corp was created by a Veterinarian Professional, with over 20 years of experience in the field. We have partner with major distributors to bring you not only the best the best prices, but quality and fresh product.

**Q: can i give my dog a bath**
A: Its best to wait a few days before bathing your pet. It gives the medicine time to soak into the skin and do what its designed to do best.

**Q: how long after a bath can I put this on my dog?**
A: Go ahead and put the drops on your dog immediately after bathing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bye-Bye Bugs, Hello Happy Pup 🐾🛡️
*by S***P on December 24, 2025*

K9 Advantix II keeps fleas, ticks, and mosquitoes far away from my small dogs. Easy to apply, vet-recommended, and works fast — no more itchy, grumpy pups. Peace of mind for me, tail wags for them. Highly recommend if you want a pest-free pooch.

### ⭐⭐⭐⭐⭐ After half a year of fleas, switching to this product completely got rid of them!
*by V***T on September 16, 2025*

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. :)

### ⭐⭐⭐⭐⭐ Been using it for over 10 years
*by 2***S on February 13, 2014*

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.

## Frequently Bought Together

- K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 6-Mo Supply
- K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 6-Mo Supply
- K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21 - 55 lbs. | 6-Mo Supply

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-24*