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Description
K9 Advantix II Flea, Tick & Mosquito Treatment & Prevention for Medium DogsK9 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
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.
Key Features
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K9 Advantix II Medium Dog 30-day treatment & prevention protects dogs 11-20 lbs. from fleas, ticks, mosquitoes, biting flies and lice
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Kills fleas within 12 hours of application
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Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
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Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
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No prescription needed
Directions for Use
Use only on dogs. DO NOT USE ON CATS or other animals. Do not apply to dogs weighing less than 4 lbs. Remove applicator tube from the package. Use scissors and peel down foil. Hold applicator tube in an upright position. Pull cap off tube. Turn cap around and place other end of cap back on tube. Twist cap to break seal, then remove cap from tube. The dog should be standing for easy application. Evenly apply entire contents of the tube along the top of the dog's back, from the shoulder down to the base of the tail. The number of spots depends on the size and weight of your dog (please refer to the product label). At each spot, part the hair until skin is visible. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin. Do not apply an excessive amount of solution at any one spot that could cause some of the solution to run off the side of the dog. Do not get this product in your dog’s eyes, or allow your dog to ingest this product.
Storage Instructions
Store in a cool, dry place inaccessible to children and pets. Protect from freezing.
Active Ingredients
Imidacloprid, Permethrin, Pyriproxyfen
Product Form
- Topical
Pet Size
- Medium
Pet Lifestage
- 7 weeks and older
Pet Weight
11-20 lbs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1989 reviews
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Product Reviews
★★★★★ 5
Vanilla Syrup
Flavor Name: Vanilla
So tasty. Put in my ice coffee and it is perfect. Large bottle but just the right size for me using it daily. Highly recommend.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Wonderful for London Fogs
Flavor Name: Vanilla
This was a really good-tasting product! I personally use it to make London fogs, and it is perfect for this goal of mine. I do think the pump doesn't spray the syrup as "laminar" as I would like, which causes it to splash onto the table around my mug, but it's still a solid product despite this issue.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Will always make coffee with this
Flavor Name: Vanilla
This is the key to a good coffee! I do 3-4 pumps and my coffee is sweet & tasty. Bottle is large and will last a while as I don’t make coffee daily. The pump makes life so much easier. Great taste, highly recommend :)
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Perfect
Flavor Name: Vanilla
I got this vanilla syrup for my wedding to use at a soda bar, and it was such a hit! Everyone loved it. The flavor is amazing—smooth, sweet, and really rich without tasting artificial. It added the perfect cozy touch to the drinks and worked so well with everything on the menu. I’m so glad I chose this one, it tasted incredible and made everything feel extra special!
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Reviewed in the United States on May 4, 2026
★★★★★ 4
Syrup
Flavor Name: Vanilla
The Torani Vanilla Coffee Syrup is a great value and a nice, generous size. The vanilla flavor is smooth and works well in coffee and other drinks. I really appreciate that it comes with a pump—it makes dispensing easy and mess-free once it’s set up.
However, it’s important to note that when you first insert the pump into a new, full bottle, the syrup can spill over due to the displacement. I recommend placing the bottle in the sink or removing a small amount of syrup before inserting the pump.
Overall, a solid product with great flavor and convenience, just be cautious during the initial setup.
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Reviewed in the United States on December 18, 2025