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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.
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- Delivery 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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4.1 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
The heartbreaker
Format: Audiobook
Oh my gosh, why did I wait so long to read/listen to this book?
I loved it so much I literally read it in less than record time. The chemistry between Rowan and Kyleigh was amazing and Kyleigh and her brother Conor’s bond was so heartwarming.
The full cast of narrators did such a phenomenal job of bringing the characters to life that the story played out like a movie in my head and I ate it all up.
Tropes:
💞Forbidden
🏒One Night Stand Secret Romance
💘 Reformed Playboy
🥅Hockey Romance
🚶♂️🚶🏻➡️Brothers Team Mate
Narrator Cast:
• Sean Masters
• Erin Mallon
• Connor Crais
• JF Harding
• Troy Duran
• Teddy Hamilton
• CJ Bloom
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Reviewed in the United States on March 13, 2026
★★★★★ 4
THE P@SSION IN THIS STORY!!!
Format: Kindle
Wow! How could I ever forget how amazing Piper Rayne is?! Her writing is SO GOOD and captivating that I had to force myself to slow down as I just didn’t want this book to end.
The MMC was super sweet and strong and loyal and not afraid to feel what he’s feeling. No, is is NOT a simp, he is just mature and once he decided he was in love, instead of running away in fear, he started making moves to show it. That is one who is in touch with his emotions for sure. Rowan was a dream boyfriend that I wish were real!!
Then we had our FMC, Ryleigh who was a bit emotionally stunted due to something she had seen. She was NOT looking for Mr. Right, just Mr. Right now but boy oh BOY did the sparks fly between these two!! 🥵😮💨🔥. Their chemistry was off the charts and the spïcy scenes were so fre@king hot. Just woa, had me fanning myself constantly. The way they were portrayed as a couple showed a lasting connection that I was cheering for from chapter one.
This was such an amazing story that I had to switch to reading it as well as I couldn’t stop when I got out of my car. (This started as an audible book but quickly became my every book)! With narrators like: Sean Masters,Erin Mallon, Connor Crais, JF Harding, Troy Duran, Teddy Hamilton and CJ Bloom?! there was no WAY I wasn’t buying this a fre@king all star cast like I’ve never had in a book before. These are literally almost all of my favorites, I was totally geeking out.
All in all a great feel good story full of passion, heat, hurt and healing. Loved every minute of it. The side characters were so powerful I hope each guy gets his own book!
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Reviewed in the United States on January 20, 2025
★★★★★ 5
An amazing book!!!
Format: Kindle
This was another amazing book by Piper Rayne! The nest is one of my favorite series (top 2 of all time)! The love story between Kyleigh and Rowan was beautifully written! I love the found family in this series! They always tell each other when they are messing up and always help each other fix their mistakes! The banter between them is soo well written.
I highly recommend this book and the audiobook! The full cast audio book is beyond amazing!!!! It truly brought this wonderful story to life! The narrators did a fantastic job and really made me feel like I was a part of the story! I am such a sucker for a full cast audiobook! Another great job Piper Rayne and all the narrators that helped tell this awesome story!!!
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Reviewed in the United States on December 12, 2025
★★★★★ 5
This book was amazing!
Format: Kindle
I absolutely loved this book! Avery and Knox were beyond perfect for each other. Rebecca Jenshak did such an incredible writing this book and these characters. The brothers relationships in this family is wonderful. Everyone steps up to help take care of each other and it is heart warming. This book had low angst which I loved! I am really enjoying the start to this series and I cant wait to read the next book!
The duet audiobook was incredible! Erin Mallon and Teddy Hamiliton did a fantastic job bringing this book and these characters to life! I highly recommend this book, audiobook, and series!
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Reviewed in the United States on April 22, 2026
★★★★★ 4
Banter, a bit of angst, found family, and a hot, tattooed bad boy who’s really a totally softie
Format: Kindle
This was a fun, easy read. It has all the things I love in a sports romance...banter, a bit of angst, found family, and a hot, tattooed bad boy who’s really a totally softie.
Knox is kind of a mess at the start. He’s super talented, but has a reputation problem after getting kicked off his motocross team. He’s desperate for a second chance, which leads him to Avery, a former Olympic gymnast recovering from an injury. She’s trying to get her confidence back, and somehow these two end up helping each other.
They can't stand each other at the beginning. He says ALL. THE. WRONG. THINGS. Evenutally, their friendship builds into something more. It felt natural and sweet. I liked that they both had their own stuff going on. Avery’s inner struggle was really relatable, and Knox’s bond with his brothers, especially with Flynn, added a ton of heart to the story.
The beginning was little slow, and the ending felt a little rushed. Overall, though? I had a great time with this book.
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Reviewed in the United States on July 27, 2025