Petco Text Logo
Petco Pet Logo

K9 Advantix II Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention for X-Large Dogs, Count of 6

K9 Advantix II Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention for X-Large Dogs, Count of 6


Count
12
$132.89
6
$75.98
4
$54.61
2
$33.90
1
$18.03
Free Shipping $35+
Icon carat down

Description

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

K9 Advantix II Extra Large Dog delivers vet-recommended treatment and prevention of five pests, including fleas, ticks, mosquitoes, biting flies and lice. Within 12 hours of application, K9 Advantix II Extra Large Dog repels pests and kills fleas on contact so they don't have to bite your dog to die. This monthly, easy-to-apply topical formula is fragrance-free, waterproof after 24 hours and there's no prescription needed.

  • - 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

Specifications

SKU2254910
Primary BrandK9 Advantix II
Days to ShipShips Next Business Day
Weight.2 LB

Additional Features

Personalized Item flagNo

Pet Sizing

Breed SizeX-Large

Item Dimensions

Length1.375 IN
Height6.625 IN
Width4.375 IN

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.

Reviews

Rating Snapshot

Select a row below to filter reviews.

5 stars

5286

4 stars

762

3 stars

197

2 stars

138

1 stars

467

Overall Rating

4.5
4464 out of 6850 (65%) reviewers recommend this product

Review this Product

Adding a review will require a valid email for verification

Most Helpful Favorable Review

(No title)

vet_tech

19 years ago

I am a vet tech who was involved in getting the final stage of FDA approval for ...

Show Full Review

798 PEOPLE FOUND THIS HELPFUL

Show Reviews:

5

and

4

Most Helpful Critical Review

Absolutely Useless

Patricia2

9 years ago

I bought a 2-pack of Advantix II for my rat terrier six weeks ago. She did not h...

Show Full Review

166 PEOPLE FOUND THIS HELPFUL

Show Reviews:

3

2

and

1

Customer Images

Filter Reviews

Rating
1 - 8 of 5399 Reviews
Most Recent

1451 Ratings-Only Reviews

I have been using on my dogs for years.

Jenn

17 days ago
Great flea and tick protection. Protects the house and the dogs

Yes, I recommend this product.

Helpful?

Good

Grace

1 month ago
Works pretty well, doesn’t completely get rid of fleas but drastically reduced the amount of flea dirt, and the fleas I did find were easy to remove.

Yes, I recommend this product.

Helpful?

Waste

Breanne

1 month ago
Did absolutely nothing. Waste of money. I used the off brand first it didn’t work so I waited and bought this instead. Nothing.

No, I do not recommend this product.

Helpful?

Shipping could be better, product satisfactory

Schell

1 month ago
Product is good. Box was crushed in shipping. Thankfully product doesn’t seem to be damaged.

Yes, I recommend this product.

Helpful?

No fleas or ticks

Annoyedwithpublicname

2 months ago
We've been using this product for over 8 years without issues. Unlike with some other products out there, this actually has worked for us, there hasn't been any skin irritation, and it supposedly protects from mosquitos.

Yes, I recommend this product.

Helpful?

Please deliver order

2 months ago
Haven't received this order. This order has not been delivered.

No, I do not recommend this product.

Helpful?

A waste of money terrible product

Max1

2 months ago
I purchased in September 4 tubes for my 4 dogs. It helped possibly with deterring mosquitoes and they had no ticks but didn’t get rid of fleas so I gave it 2 weeks still my dogs still had fleas and itching so badly so I bought 4 more for the dogs after 10 days on last treatment still covered in fleas. This stuff is not getting rid of fleas. We also sprayed our yard 4 times to try to help this expensive junk out. It does not work on fleas

No, I do not recommend this product.

Helpful?

Doesn’t seem to work

Aaron

2 months ago
My dog got fleas at the groomer, I’ve treated him twice and he still has fleas.

No, I do not recommend this product.

Helpful?
1 - 8 of 5399 Reviews

Questions

1 - 10 of 96 Questions
Sort by: Newest Answers

should I bathe my dog before applying

  1. Yes! I bathe my dog before application.just make sure his fur is fully dry before you apply it!



Does it kill/ repel tapeworm ?

    I applied K9 Advantix II for small dogs (4 - 10lbs) to my toy poodle. He's oatmeal color fur. After the application, we noticed his fur on his back where the three spot applications were, turned grayish brown in a strip. What to do with the discoloration?

    1. Give your dog a bath no less than 24 hours after application. The stripe will go away and they'll still be protected. For the medication to be effective, they can't get wet for 24 hours application. The topical does pick up dirt and fuzz, but after you bathe them it will be gone.



    I have a 50 lb pit bull. Looking for good flea protection. He scratches often. Would advantix work?

    1. Advantix also repels pests.  Most flea treatments only kill fleas when they bite.  So Advantix may work for your dog. 



    What is the mm in large vs extra lg?

    1. XL: 4.0mL (0.135 fl. oz.) L:   2.5mL (0.84 fl. oz.)



    how many ml contain a dose for medium dogs?

      My dog weighs 150 lbs. how much do I need to use?

        Wts better advantage or advantix

        1. Advantix



        Hello my dog is 11.3 pounds should I use the small or medium one?

        1. Simple, don't use it. Use vectra instead



        I am looking something against the mosquitoes, we live in a hot, humid place and my dog is old, he doesn´t move a lot so the mosquitoes are a nightmare! This product works well for this problem??

        1. yes me and my 2 pups we go hiking alot in the woods the mosquitos will float around the pups ive been using this flea meds for 10 years never had a problem with fleas ticks and mosquitos i always wash the pups wait till next day and apply k9 advantix 2



        Styled arrow button