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Description
K9 Advantix II XL Dog Flea, Tick & Mosquito Treatment & PreventionK9 Advantix II Extra 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
K9 Advantix II Extra 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 Extra 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 over 55 lbs. to use K9 Advantix II Extra Large 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 Extra Large Dog is a trademark of Elanco or its affiliates.
Key Features
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K9 Advantix II Extra Large Dog 30-day treatment & prevention protects dogs over 55 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
- Extra Large
Pet Lifestage
- 7 weeks and older
Pet Weight
Over 55 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
4.5 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Evisceration was nearly instantaneous but he’s hanging on!
Despite my Sunshine eviscerating this prehistoric fellow and extracting the squeaker from his innards within minutes (followed by about an hour of her laying about, lazily squeaking, it has otherwise held up fairly well! Plastic squeaker aside, it doesn’t have any other plastic parts in it and the stitching has held up (my Sunshine went for the squeaker as if it were an alien about to burst forth from the dino’s belly and acted accordingly so the fabric didn’t quite hold up as well). It’s a decent size and only had a bit of fluff in its belly for me to clean up afterward. My Sunshine is an energetic chewer so I consider it a win that this thing is still even dino-shaped and only bereft of its squeaker. My Sunshine is quite happy with this little fellow and if she’s happy, I’m happy!
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Reviewed in the United States on August 20, 2025
★★★★★ 5
Became my dog's new favorite
This instantly became my dog's go-to toy, and thankfully it's lasted longer than I anticipated. He was excited to play with it immediately, of course, but he also continued to go to it over all the other toys he has. He loves to rip and tear, so I didn't think this would last more than a day, but incredibly it's been going for weeks. Granted, he's torn out the squeaker and some of the crinkly plastic, as well as most of the stuffing, but there's still a recognizable dinosaur-shaped toy hanging around that he still likes to play with. The squeaker is also different than most dog toys, it's larger and lower-pitched, so that variation is fun. There's lots of crinkly plastic in the tail and feet, so even after my dog ripped open the tail and gotten that plastic out, there's still more noise-making stuff left in there. The size and amount of stuffing is also great, as it's given him many days of things to tear apart.
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Reviewed in the United States on August 21, 2025
★★★★★ 5
My Dogs Love It!
Do your dogs love a specific type of toy? Since my girls were puppies, they have preferred a specific material for toys. It is a soft, bubbly texture, usually in bright colors. It is soft for them and durable enough to survive even the toughest of playmates. All the toys made from this material also have a certain crinkle paper that drives both of my girls wild, and sometimes even include a squeaker. When I saw that this adorable dinosaur fit their favorite toy's qualities, I knew I had to get it for them!
First, I want to talk about the quality. This dinosaur is adorable and designed for some tough play sessions. It is more reinforced than the name-brand toys I buy, which impressed me. While my girls rarely destroy toys, I find comfort in knowing that they will likely get bored with a toy before destroying it. What shocked me more was the squeaker. This company didn't go cheap; they went for a higher quality, large squeaker that is very loud and durable. My dogs have been playing with this for nearly two hours straight, and the squeaker has been going strong. If you don't like loud squeakers, though, be warned, it is very loud and isn't stop working anytime soon!
Overall, this toy has been a big hit and way cheaper than what I can buy at local pet stores. With the quality and how much my girls love it, it has been a bargain and well worth it! This is a toy that we will be purchasing more of soon.
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Rawr!
My dogs love this toy; they have been playing with it for a few days, and surprisingly, it has been durable enough to withstand most of the torture. it has a fun squeaker and thankfully not too much filler, which I am thankful to have to follow behind to pick up.
This is a good value toy. My dogs can usually tear a toy up in seconds but for some reason, they have chosen to keep this dinosaur alive!
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Reviewed in the United States on August 18, 2025
★★★★★ 4
Not for Aggressive Chewers
Cute stuffed dino with one large squeaker in the body and crinkle paper in the feet and tail. The right size for medium to large dogs. Riley was eager to play tug-of-war with this toy when I first gave it to her. Five minutes later the novelty had worn off and she went to her toy basket to bring out her usual favorites. Being plush, this is not really a toy for aggressive chewers--after only 5 minutes she had torn open a seam and ripped off part of the tag. I'll continue to let her play with it until stuffing starts coming out (which shouldn't be long).
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Reviewed in the United States on August 13, 2025