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K9 Advantix II

Starts $62.49 $44.99 
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Product Info
How to Use
Ingredients
Customer Reviews
Q&A
Product Info
What is K9 Advantix II?

K9 Advantix II is a monthly preventative for dogs that offers comprehensive protection against ticks, fleas, mosquitoes, biting flies, and chewing lice. K9 Advantix II is a top veterinarian-recommended brand because it repels and kills all life stages of fleas (eggs, pupae, larvae, and adult fleas) and ticks (Deer ticks, American dog ticks, Brown dog ticks, and Lone Star ticks). K9 Advantix II kills 98-100 percent of fleas within 12 hours and continues working for one month to prevent infestations. Fleas and ticks are killed on contact with a treated dog, which means that fleas don't have to bite and ticks don't have to attach to die. This helps prevent transmission of flea-borne and tick-borne diseases such as tapeworms, Lyme disease, tick paralysis, ehrlichia, and Rocky Mountain spotted fever. Killing fleas before they bite may also help prevent skin allergies caused by flea saliva. As well, K9 Advantix II repels mosquitoes before they bite, which may help prevent transmission of heartworms. K9 Advantix II protects your pet before parasites have a chance to bite, not after.

For:

Dogs and Puppies (only over 4 lbs and 7 weeks of age or older)

Benefits:
  • Repels and kills disease-carrying fleas, ticks, and mosquitoes before they bite
  • Kills all life stages of fleas (eggs, pupae, larvae, and adult fleas) and ticks (Deer ticks, American dog ticks, Brown dog ticks, and Lone Star ticks)
  • Kills 98-100 percent of adult fleas within 12 hours
  • Ends flea life cycle by preventing flea offspring (eggs, pupae, and larvae) from maturing into adult fleas
  • Repels biting flies and kills chewing lice
  • Provides one month of protection against ticks, fleas, mosquitoes, biting flies
  • Waterproof - continues working even after your dog becomes wet
How it works:

K9 Advantix II combines imidacloprid and permethrin to repel and kill fleas, ticks, and mosquitoes. Both ingredients work on contact, attacking parasite nerve cells at different sites. Together these ingredients overwhelm the nervous system killing the parasite. Pyriproxyfen is an insect growth regulator. K9 Advantix II topical solution also repels biting flies and kills lice.

Cautions:

DO NOT USE ON CATS. Cats cannot metabolize the ingredients used in this product. Cats must be separated from dogs during treatment. Do not allow your cat to come in contact with a treated dog for 24 hours. Some small and medium dogs may have an adverse skin reaction.

Brand Name:

K9 Advantix II (Bayer)

Active Ingredient(s):

Imidacloprid (8.8%), Permethrin (44.0%), Pyriproxyfen (0.44%), Other ingredients (46.76%)

What is this product used for:

K9 Advantix II is for use on dogs and puppies 4 lbs or more and 7 weeks of age or older only. It is used for the topical prevention and treatment of ticks, fleas, mosquitoes, biting flies, and chewing lice on dogs. Repels and kills ticks including deer ticks (the major carrier of Lyme disease), American dog ticks, Brown dog ticks and lone star ticks. K9 Advantix II repels and kills all life stages of fleas, repels and kills mosquitoes, kills chewing lice, and repels biting flies.

Availability:

K9 Advantix II is a non-prescription (OTC) product available as 0.014 fl oz (0.4 ml) applicators for dogs 4-10 lbs (Green), 0.034 fl oz (1.0 ml) applicators for dogs 11-20 lbs (Teal), 0.084 fl oz (2.5 ml) applicators for dogs 21-55 lbs (Red), and 0.135 fl oz (4.0 ml) applicators for dogs over 55 lbs (Blue).

How this product should be used:

For use only on dogs. Do not use on cats or on other animals. Have the dog standing for easy application. Part the hair on the dog's back, between the shoulder blades, until the skin is visible. For dogs up to 20 lbs, apply the entire contents of the applicator tube to 2 or 3 spots on the top of the back from the shoulder to the base of the tail. For dogs 21 lbs and over, apply the entire contents of the applicator tube to 4 or 6 spots on the top of the back from the shoulder to the base of the tail. If the household has cats or other animals, separate from the treated dog for 24 hours.

What are the side effects:

Individual sensitivities, while rare, may occur after using any pesticide product for pets. A small percentage of dogs have had adverse reactions to K9 Advantix II. A sensation of burning, tingling, itching, redness or numbness of the skin may occur after topical application. This sensation usually begins 1-2 hours after application. In addition, reactions have occurred in cats that have been exposed to a medicated dog. That is why it is important to separate your cat from a medicated dog for 24 hours. Bayer, the manufacturer of K9 Advantix II, indicates that some of these symptoms will dissipate within 48 hours; however, if your pet is experiencing adverse reactions, please complete the following steps:

  • Stop applying the medication
  • Wash your dog with a detergent based soap (Dawn or Palmolive dish detergents work best). Do not scrub the affected area, as this may cause more skin irritation. Please note: This process is applicable for both dogs and cats.
  • Call your veterinarian
  • Call Bayer Emergency Support Line at 1-800-422-9874. Let Bayer know your dog is having an adverse reaction to K9 Advantix by calling 1-800-422-9874. This line is staffed 24 hours a day, 7 days a week.
What special precautions are there:

This product is for external use only on dogs and puppies 4 lbs or more and 7 weeks or older. Consult a veterinarian before using on medicated animals and debilitated, aged, pregnant or nursing animals. Do not get this product in dog's eyes or mouth. Do not use this product on animals other than dogs. In households with cats, separate the treated dog for about 24 hours. Due to their unique physiology and inability to metabolize certain compounds, this product must not be used on cats. If applied to a cat, or ingested by a cat which actively grooms a recently treated dog, this product may have serious harmful effects. If this occurs, contact your veterinarian immediately. It is important to apply this product no more than once a month and to use the correct strength for the weight of the dog. This product is harmful to humans if swallowed. Call a physician or poison control center for advice. Have patient sip water. Do not induce vomiting unless advised to and the patient is conscious. This product can cause eye irritation. Flush eyes with plenty of water. Call a physician if irritation persists. Avoid contact with skin, eyes or clothing. Wash thoroughly with soap and water after handling.

In the event of overdose:

Contact your veterinarian or veterinary emergency room.

How should I store this product:

Store this product in a cool, dry place. Do not refrigerate. Store in the original container only. Do not reuse original container. If the container is empty place in trash or offer for recycling if available. If the container is partially filled, call for disposal instructions. Never place unused product down any indoor or outdoor drain.

How to Use
Directions:
  • Use only on dogs over 4 lbs and over 7 weeks of age. Do not use on cats or on other animals.
  • Your dog should be standing for easy application.
  • The entire contents of K9 Advantix II tube should be applied evenly to the top of the back from the shoulder to the base of the tail.
  • At each spot, part the hair until the 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 your dog.
  • For dogs up to 20 lbs, apply the entire contents of the applicator tube to 2 or 3 spots on the top of the back from the shoulder to the base of the tail.
  • For dogs 21 lbs and over, apply the entire contents of the applicator tube to 4 or 6 spots on the top of the back from the shoulder to the base of the tail.
  • Use only one applicator per treatment.
Tip:

In households with cats, separate the treated dog for 24 hours until the product is thoroughly dry. Visit K9 Advantix II Adverse Reactions if your pet has been experiencing adverse reactions to K9 Advantix II.

Dosage:
Dogs/Puppies:(7 weeks of age and older)
Weight
Dosage
1-3 lbs
Do not use.
4-10 lbs
Apply contents of 1 applicator once a month (Green Box)
11-20 lbs
Apply contents of 1 applicator once a month (Teal Box)
21-55 lbs
Apply contents of 1 applicator once a month (Red Box)
Over 55 lbs
Apply contents of 1 applicator once a month (Blue Box)
Cats:
Do not use!
Horses:
Do not use!
Storage:

Should be stored in a cool dry place. Do not refrigerate.

Ingredients
K9 Advantix II for Dogs 4-10 lbs (Small Dog - Green Box) (0.4 mL):
Active Ingredients (per applicator tube)
% By Weight
Imidacloprid
8.80%
Permethrin*
44.0%
Pyriproxyfen
0.44%
Other Ingredients (not specified)
46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
K9 Advantix II for Dogs 11-20 lbs (Medium Dog - Teal Box) (1.0 mL):
Active Ingredients (per applicator tube)
% By Weight
Imidacloprid
8.80%
Permethrin*
44.0%
Pyriproxyfen
0.44%
Other Ingredients (not specified)
46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
K9 Advantix II for Dogs 21-55 lbs (Large Dog - Red Box) (2.5 mL):
Active Ingredients (per applicator tube)
% By Weight
Imidacloprid
8.80%
Permethrin*
44.0%
Pyriproxyfen
0.44%
Other Ingredients (not specified)
46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
K9 Advantix II for Dogs over 55 lbs (Extra Large Dog - Blue Box) (4.0 mL):
Active Ingredients (per applicator tube)
% By Weight
Imidacloprid
8.80%
Permethrin*
44.0%
Pyriproxyfen
0.44%
Other Ingredients (not specified)
46.76%
*cis/trans ratio: Max 55% (+/-) cis and min 45% (+/-) trans
Customer Reviews
K9 Advantix II is rated 3.7132 out of 5 by 3,407.
Rated 5 out of 5 by from No More Fleas! My poor dog was suffering for almost a week with the dang fleas. Once my K9 advantix II arrived I put it on him and in about 12 hours or less I saw the huge difference. He wasn't itching as much and now it's no more itching. Thanks 800-PetMeds for making my dog from an agitated dog to a happy one.
Date published: 2016-05-24
Rated 4 out of 5 by from Water resistant We are in a tick borne lyme area, and our dogs go field walking and swimming almost daily. We buy this brand because it seems to be more water-resistant than others. It takes at least 3 days from time of application to become effective.
Date published: 2016-05-24
Rated 5 out of 5 by from My vet recommended this product!
Date published: 2016-05-22
Rated 5 out of 5 by from Kills Ticks fast before they bite Advantix II kills ticks faster than other preventives. I used Frontline Plus for years, but the ticks would crawl around for quite a while before dying. It seems like they die a lot faster with this treatment.
Date published: 2016-05-21
Rated 5 out of 5 by from Been using this for a few years I love this product! My dogs never seem to get slugglish or sick from it. Other than a weird white crumbly residue where I apllied it that goes away over a few days. One of my dogs has skin allergies and this product never seems to bother him. My daughter is a dog groomer and regularly inspects them for pest, they always come up clean!
Date published: 2016-05-21
Rated 5 out of 5 by from Great Product! I have been using this product on my three dogs for the last few months. Great Product, Great Price,
Date published: 2016-05-17
Rated 5 out of 5 by from Really Works I have tried every other product out there for my dogs to get rid of fleas and ticks. I have been using K9 advantix II for 2 1/2 years and this is the best for eliminating both of these pests. I haven't seen a flea or tick on them since I have been using this product. I HIGHY recommend it.
Date published: 2016-05-15
Rated 5 out of 5 by from easy to open & apply I've been a dog owner since '97 and have learned from experience that over-the-counter products don't work (I tried each one the local stores had). The shampoos/powders only kill the fleas that happen to be on the dog at that moment. The flea collars only made them scratch, and did as much good as wearing a bandana. I searched the net, reviewed the different products, and while I was making up my mind, saw the PetMeds commercial. I read everything, and decided to try it. Spunky is a miniature Dachshund, barely 8#; she cringed when I applied it, but hasn't had any adverse affects from it. I don't recall how long I've been buying this now, maybe 10 yrs. Except for that one time when Spunky got ear mites from the neighbor's dog, she's been parasite free. My brother tells me not to use ANY man-made flea products, claiming home-made stuff works just as well and is healthier for the dog. Yeah, well, I've tried those too...doesn't work. Feeding them ground, fresh garlic, or spraying them with peppermint oil in water. Phooey! The fleas just had an extra kick when they fed. The vet says she's healthy and exceptionally good looking for a dog her age; she's happy, I'm happy, my wallet's happy...we're all happy.
Date published: 2016-05-14
  • 2016-05-28T06:10CST
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Q&A

if I have a tube of advantix for the extra large breed and I want to use it on a small breed of dog, how much of the tube should I use?

Asked by: Natika 2017
As a licensed pharmacy, we cannot recommend using a larger tube for a smaller dog. This is to prevent over or under medicating your furry baby.
Answered by: Cherley Petmeds Pro
Date published: 2016-05-26

If I use this head to hind my dog losses her hind hair is it safe and effective to use around neck only she is 7 lbs xs

Asked by: FOXY
You may want to consult with your veterinarian before applying this to your furry baby to prevent further irritation.
Answered by: Cherley Petmeds Pro
Date published: 2016-05-19

My dog weighs 10 lbs. Which dosage should I use?

Asked by: Pixies mom
If I put this from shoulder to tail she loses the hair on her hind quarters is it ok if I only use around neck area
Answered by: FOXY
Date published: 2016-05-23

I put this on my dog 2 days ago and he has since rolled in something and needs a bath.  I noticed it says it's water proof, but does that include a bath with shampoo?  How long should I wait to bath him after applying?

Asked by: JJ87
It is safe to bathe your furry baby 24-48 hours after you apply the K9 Advantix. When bathing your furry baby with shampoo, please make sure the shampoo is not a shampoo that washes off flea and tick meds.
Answered by: Cherley Petmeds Pro
Date published: 2016-05-27

How much is a 6 month supply verses a 3 month supply of Frontline Plus for a 12 lb.dog and a 40lb dog. I cannot locate this information. Thanking you in advance.

Asked by: Arlette
The 3 pack of Frontline Plus is $38.69. The 6 pack of Frontline Plus is $71.98. All weights are the same price.
Answered by: Cherley Petmeds Pro
Date published: 2016-05-13

I have a dog that's nursing and the pups are a week old. If I put the on her and allow it to dry would it be safe for the pups?

Asked by: Vanessa
Consult a veterinarian before using on medicated animals and debilitated, aged, pregnant or nursing animals.
Answered by: Cherley Petmeds Pro
Date published: 2016-05-11

I use this year round because my dog is allergic to fleas. We just picked a huge tick from her ear. It was attached. I thought this product prevented this?  My dog is not a happy camper. 

Asked by: Laurie
Ticks are very difficult to kill. I can't think of a single product that will kill a tick in under 24 hours although some may have some repellent properties. As a result, a tick will still be capable of attaching before it dies. One the bright side, tick products will kill the tick before it is able to spread other diseases, such as Lyme disease and Rocky Mountain Spotted Fever, which usually takes place when a tick is attached for 48 hours or longer.
Answered by: SuzyCVT
Date published: 2016-05-26

Do you charge sales tax?

Asked by: kimedee
No, we only charge sales tax on over the counter items being shipped to Virginia and Florida.
Answered by: Cherley Petmeds Pro
Date published: 2016-05-03
  • 2016-05-28T06:22CST
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