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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.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Great kid book
Format: Hardcover
Daughter loves this book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
★★★★★ 5
A Unique and Incredible Tale
Format: Kindle
This book brilliantly shows what it feels like for me to go through the world neurodivergently. The characters truly resonate. The artistry of the layout and imagery is compelling and once I started reading, I couldn’t stop. What an authentic glimpse into an intense inner world!
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Reviewed in the United States on July 11, 2025
★★★★★ 5
When you think you know someone’s story, maybe think again
Format: Hardcover
Imaginative and absorbing, this book will encourage you to examine yourself and extend kindness to others. Well-executed and gripping, it will challenge you to confront adversity, grow, and help others do the same.
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Reviewed in the United States on May 22, 2025
★★★★★ 4
Building something wonderful out of the broken pieces
Format: Hardcover
Meg Eden Kuyatt has done it again. I am a big fan of novel in verse, and this author is one reason why. The poetry delivers character, setting, and story in a clear, believable voice. The protagonist, V, is a middle school girl full of feelings, celebrating her difference while fighting for her place in the wonderland of neurotypicals. V introduces herself in vibrant socks that say “I am strange and wonderful.” And with that, we are off.
V is reluctantly spending the summer with her grandma Jojo in the pristine white house that has been in her family for generations. History is definitely living here. The house is a character itself (and a metaphor). I love that V’s cousin Cat creates assemblages, an art form I was not familiar with. Cat describes it as taking discarded, broken stuff and turning it into something beautiful (another metaphor).
There is a lot going on here and a satisfying resolution brought on by a heaping dose of empathy. Highly recommend for the suggested audience (juvenile fiction, grades 3-7), their teachers, and families with neurodivergence.
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Reviewed in the United States on June 2, 2025
★★★★★ 5
Emotionally messy relationships with unreliable narrators
Format: Hardcover
Meg Eden Kuyatt guides us through a beautifully lyrical journey into the life of V, an autistic girl forced to spend the summer with her overbearing grandmother. The story is often more metaphorical than literal, which works well thematically since it revolves around emotionally messy relationships with unreliable narrators, making the details of both the past and present difficult to pin down. Overall, a great read that will be appreciated by both kids and adults looking for mature, nuanced stories about dysfunctional families and the autistic experience.
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Reviewed in the United States on December 31, 2025