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Description
K9 Advantix II Flea, Tick & Mosquito Treatment & Prevention for Large DogsK9 Advantix II Large 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 Large 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 Large 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 to use K9 Advantix II Large Dog. For the ultimate convenience in care, K9 Advantix II is available over the counter – no prescription needed. 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 Large Dog is a trademark of Elanco or its affiliates.
Key Features
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K9 Advantix II treatment & prevention protects dogs 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
- Large
Pet Lifestage
- 7 weeks and older
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
4.4 ★★★★★
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Product Reviews
★★★★★ 5
Saving Your Secong Marriage Book
Great Product. It has been very helpful when preparing to minister to couples that are getting ready to be married for the second time and those that are already married for the second time. Awesome material!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2017
★★★★★ 5
Read before attempting.
This book is best read before you attempt a second marraige or even if you have thought of getting a divorce. I read this after getting remarried and found it useful but would have been especially helpful prior to in preparing for a second marriage.
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Reviewed in the United States on March 15, 2012
★★★★★ 5
Excellent Snack but price a bit high
Pattern Name: Strip, Size: 10 Packs (Box)
I do not know how they make these things. But Daisy really loves them. Been buying them for a few years now and they still don't go down in price.
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Reviewed in the United States on June 3, 2026
★★★★★ 1
I Received the Old, Outdated Product
Pattern Name: Strip, Size: 10 Packs (Box)
I have been buying these strips for years and my dog loves them so much that they are the ONLY treat he will eat. I ordered a 10 lb. box that arrived 5/14/26 and received old, brown-labeled product that he won’t touch. I had a white-labeled package left from my past order and he will eat those but not the old, most recently received ones. Thankfully, Amazon issued a refund, but I am hesitant to purchase these again.
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Reviewed in the United States on May 15, 2026
★★★★★ 3
Not made in USA
Pattern Name: Strip, Size: 10 Packs (Box), Pattern Name: Strip, Size: 10 Packs (Box)
The product is good but it is not made in the USA. It says Taiwan! That makes me angry because I don’t trust foreign countries for pet foods. It is well known there has been products from another country that actually poisoned US pets. I ordered the box of 10 and have been giving it to my two small dogs. I will be monitoring closely . They should not advertise made in USA when it says made in Taiwan!
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Reviewed in the United States on March 8, 2026