Amazon
K9 Advantix II XL Flea & Tick Treatment for Dogs 55+ lbs
K9 Advantix II XL Flea & Tick Treatment for Dogs 55+ lbs
Couldn't load pickup availability
- K9 Advantix II Extra Large Dog 30-day treatment & prevention protects dogs over 55 lbs. from fleas, ticks, mosquitoes, biting flies and lice
- Kills fleas within 12 hours of application
- Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
- Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
- No prescription needed
From the manufacturer


Application key benefits
Easy-to-apply topical solution – no hard-to-swallow pills
Easy Application - Step 1
Holding the tube upright and pointed away from you and your pet, remove the cap from the applicator tube. Turn the cap around, place it back on the tube and twist to break the seal.
Easy Application - Step 2
Evenly apply the 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 the dog (please refer to the product label). At each spot, part the hair until the skin is visible. Place the tip of the tube on the skin and gently squeeze a portion of the solution on the skin.


![]()
K9 Advantix II Extra Large Dog
|
![]()
Seresto Large Dog
|
![]()
Advantage II Extra Large Dog
|
![]()
advantus
|
![]()
Advantage Treatment Shampoo
|
|
---|---|---|---|---|---|
Add to Cart
|
Add to Cart
|
Add to Cart
|
Add to Cart
|
Add to Cart
|
|
Customer Reviews |
4.5 out of 5 stars 45,367
|
4.5 out of 5 stars 106,177
|
4.5 out of 5 stars 6,504
|
4.1 out of 5 stars 13,175
|
4.4 out of 5 stars 1,744
|
Price | $53.99$53.99 | $47.98$47.98 | $50.98$50.98 | $67.28$67.28 | $19.48$19.48 |
Form | Topical Drops | Collar | Topical Drops | Flea Soft Chew | Tick and Flea Shampoo |
Treatment or Prevention | Treatment + Prevention | Treatment + Prevention | Treatment + Prevention | Treatment | Treatment |
Application Frequency | Monthly | Every 8 Months | Monthly | Do Not Exceed One Soft Chew in a 24-hour Period | See Product Label |
Kills Fleas? | ✓ | ✓ | ✓ | ✓ | ✓ |
Kills Ticks? | ✓ | ✓ | ― | ― | ― |
Kills Mosquitos? | ✓ | ― | ― | ― | ― |
Kills Lice? | ✓ | ― | ✓ | ― | ― |
Starts to Kill Fleas Within | 12 hours | 24 hours | 12 hours | 1 hour | On Contact |
Shipping
About Us
About Us

Welcome to Waggila – your trusted online destination for quality pet food, accessories, and supplies.
At Waggila, we understand that pets are family. That’s why we’re committed to helping pet owners find the best products available on Amazon – all in one convenient place.
As an Amazon affiliate store, our goal is to curate top-rated and trusted pet products, making your shopping experience faster, easier, and more reliable. Whether you're looking for nutritious pet food, fun toys, grooming essentials, or everyday supplies, Waggila offers a handpicked selection to meet the needs of your furry friends.
Our team is passionate about animals and dedicated to providing up-to-date recommendations that reflect quality, safety, and value. We do the research so you don’t have to – saving you time while helping you give your pets the love and care they deserve.
Thank you for choosing Waggila – where pet happiness is just a click away.
Share










Every purchase creates change
As a way to make a diiference we donate 1% of every sale to a trusted animal shelter
Thoughtfully designed essentials for pets & their humans.
"Discover thoughtfully designed essentials that bring joy and comfort to pets and their humans. From cozy beds to innovative toys, we prioritize quality, style, and functionality to make every moment with your furry friends special."
Stay Connected
Be the first to know about new collections and exclusive offers.