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K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 6-Mo Supply

4.4 4.4 out of 5 stars 29,757 ratings
$79.98 $13.33 per Count
FREE Returns
6 Pack
Medium Dog only
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Purchase options and add-ons

Brand K9 advantix
Item Form Topical
Scent Unscented
Age Range (Description) 7 weeks and older
Item Weight 1.6 ounces
Active Ingredients Imidacloprid, Permethrin, Pyriproxyfen
Item Volume 6 Milliliters
Target Species Dog
Allergen Information Allergen-Free
Dog Breed Size Medium

About this item

  • K9 Advantix II Medium Dog 30-day treatment & prevention protects dogs 11-20 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

Customer ratings by feature

Easy to use
4.1 4.1
Value for money
3.2 3.2
Scent
3.2 3.2
Flavor
2.8 2.8
See all reviews

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K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 6-Mo Supply
$79.98 ($13.33/Count)
Get it as soon as Saturday, May 11
In Stock
Ships from and sold by Amazon.com.
+
K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21 - 55 lbs. | 6-Mo Supply
$79.98 ($13.33/Count)
Get it as soon as Saturday, May 11
In Stock
Ships from and sold by Amazon.com.
+
K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 6-Mo Supply
$79.98 ($13.33/Count)
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From the manufacturer

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Kills and Repels

Unlike other treatments, K9 Advantix II kills and repels fleas, ticks and mosquitoes for up to four weeks and also protects against biting flies and lice.

Same-Day Effectiveness

K9 Advantix kills fleas on dogs within 12 hours of application and prevents reinfestation.

Vet-Recommended

K9 Advantix is the leading brand in flea, tick and mosquito protection, recommended by veterinarians.

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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.

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K9 Advantix II Medium Dog Seresto Small Dog Advantage II Medium Dog advantus Advantage Treatment Shampoo
Customer Reviews
4.4 out of 5 stars
29,757
4.5 out of 5 stars
46,666
4.5 out of 5 stars
4,447
4.3 out of 5 stars
1,821
4.4 out of 5 stars
1,674
Price $18.98 $59.98 $50.98 $63.98 $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

Product guides and documents

Instructions for Use (IFU) (PDF)

Product information

Feedback

K9

K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 6-Mo Supply

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 7.9 x 5 x 2.3 inches; 1.6 ounces
  • Item model number ‏ : ‎ 86315122
  • Date First Available ‏ : ‎ October 5, 2004
  • Manufacturer ‏ : ‎ Elanco US Inc
  • ASIN ‏ : ‎ B004QN0LYW
  • Country of Origin ‏ : ‎ France
  • Customer Reviews:
    4.4 4.4 out of 5 stars 29,757 ratings

Looking for specific info?

Product Description

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.

Top Brand: K9 advantix

Highly Rated
100K+ customers rate items from this brand highly
Trending
100K+ orders for this brand in past 3 months
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Important information

Ingredients

Imidacloprid 8.80% Permethrin* 44.00% Pyriproxyfen 0.44% Other Ingredients 46.76%

Directions

Application Instructions: 1. Use only on dogs. DO NOT USE ON CATS or other animals. 2. The dog should be standing for easy application. Evenly apply the entire contents of the K9 Advantix® II tube to two or three spots on the top of the back from the shoulder to the base of the tail. 3. At each spot, part the hair until the skin is visible. 4. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin. 5. 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. 6. Do not get this product in your dog’s eyes, or allow your dog to ingest this product.

Legal Disclaimer

Please read instructions/insert on product before applying to pet.

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K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 6-Mo Supply
Recommendations
K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 6-Mo Supply
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K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21 - 55 lbs. | 6-Mo Supply
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Price$79.98-12% $79.98
List: $91.18		$57.48$79.98$79.98$50.98
Delivery
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Customer Ratings
4.44.4 out of 5 stars29,757
4.54.5 out of 5 stars42,810
4.44.4 out of 5 stars29,757
4.54.5 out of 5 stars39,828
4.34.3 out of 5 stars17,042
4.54.5 out of 5 stars4,447
Easy to use
4.1
4.2
4.1
4.2
4.0
4.3
Value for money
3.2
3.5
3.2
3.4
3.1
3.7
Comfort
2.7
3.5
2.7
3.6
3.5
4.0
Scent
3.2
—
3.2
3.7
3.6
4.0
Flavor
2.8
2.8
2.8
—
2.5
—
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
target audience
Dog
Dog
Dog
Dog
Dog
Dog
age range
7 weeks and older
7 weeks and older
7 weeks and older
7 weeks and older
7 weeks and older
7 weeks and older
scent
Unscented
Unscented
Unscented
—
Unscented
Unscented
form
Topical
Topical
Topical
Topical
Topical
Topical
volume
6 milliliters
24 milliliters
4 milliliters
1 quarts
2.4 milliliters
4 milliliters
active ingredients
Imidacloprid, Permethrin, Pyriproxyfen
Imidacloprid, Permethrin, Pyriproxyfen
Imidacloprid, Permethrin, Pyriproxyfen
Imidacloprid, Permethrin, Pyriproxyfen
Imidacloprid, Permethrin, Pyriproxyfen
Imidacloprid, Pyriproxyfen

Customer reviews

4.4 out of 5 stars
4.4 out of 5
29,757 global ratings
Works perfectly!!!
5 Stars
Works perfectly!!!
I use to use Frontline all the time but the last time I used it, it didn't work, so I tried K9 Advantage and I haven't since 1 flee so from here on out I will use it
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Top reviews from the United States

zargon
5.0 out of 5 stars Always works for ticks and flees!
Reviewed in the United States on April 27, 2024
Size: 6 PackColor: Medium Dog onlyVerified Purchase
The ticks (which are plentiful on a farm) never stay on our dog. Used this product for YEARS and never had flees either! Highly suggest
One person found this helpful
Helpful
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Carol Espinoza
5.0 out of 5 stars Flea protection
Reviewed in the United States on October 26, 2023
Size: 4 PackColor: Medium Dog onlyVerified Purchase
This the best! Protects fleas, ticks perfect. Being living in area where deer and farm animals roam. Our furbabies don't like the chewable 😔
8 people found this helpful
Helpful
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Elven
5.0 out of 5 stars Been using this for 5 years
Reviewed in the United States on April 4, 2024
Size: 6 PackColor: Medium Dog onlyVerified Purchase
Using this product for 5+ years without any problem. Easy to apply and good results!
Helpful
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rose jones
4.0 out of 5 stars Works okay
Reviewed in the United States on May 2, 2024
Size: 1 PackColor: Medium Dog onlyVerified Purchase
Works okay I feel it killed the fleas but doesn’t prevent them from jumping on her so that’s the downfall
Helpful
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Christy
5.0 out of 5 stars The best
Reviewed in the United States on April 17, 2024
Size: 1 PackColor: Medium Dog onlyVerified Purchase
I've tried everything possible over the counter to work for fleas and I found this and I'm so grateful I found this product I have not seen any fleas since I put on my dog she doesn't scratch or chew now & I've given her a bath since and it's still working I highly recommend this product well worth the money.
2 people found this helpful
Helpful
 Report
Camille Winn
5.0 out of 5 stars it works!
Reviewed in the United States on April 14, 2024
Size: 1 PackColor: Medium Dog onlyVerified Purchase
I bought some pills from the online pet store, but they didn't work. Poor little pup had fleas daily. I got one of these capsules to try and no more fleas!!! You get what you pay for.
Helpful
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Carolyn Flynn
3.0 out of 5 stars Didn’t seem to help at all.
Reviewed in the United States on April 1, 2024
Size: 2 PackColor: Medium Dog onlyVerified Purchase
I had used this in the past with good results. This time it didn’t really help at all. My dogs still had fleas.
One person found this helpful
Helpful
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Mary Kay Murrah
5.0 out of 5 stars Flee killer/ preventer
Reviewed in the United States on April 19, 2024
Size: 2 PackColor: Medium Dog onlyVerified Purchase
I have always had dogs, and have tried different flea treatments, Advantix in my experience is the best, I do think it cost a little more, but I know that I don’t have to worry about my dogs bringing fleas in . It also helps with mosquitoes and flys from bothering your pets. I have had cats in the past and used on them too. I have never had any problems as long as you use it correctly.
2 people found this helpful
Helpful
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Top reviews from other countries

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Sweetie_04
5.0 out of 5 stars Buena relación calidad-precio
Reviewed in Spain on June 10, 2018
Size: 6 PackColor: Medium Dog onlyVerified Purchase
En la caja vienen 6 pipetas, como se indica en la descripción: 4 de ellas vienen en el sobre hermético de la propia caja y las otras 2 vienen sueltas (la caja realmente es de 4).
Contenta con la calidad de Advantix, no me arriesgo a probar con otra marca.
Muy recomendado por la relación calidad-precio.
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