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K9 Advantix II

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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 3.710472874963737 out of 5 by 3,447.
Rated 1 out of 5 by from My dog reacted poorly to it I used this product to cover for ticks in the summer. The first time I put it on him, I didn't notice any issues. The next time though, he acted a little funny, wasn't feeling well. The third time, he drank down multiple bowls of water and I became very concerned. I washed him immediately. He also still got several ticks when he was on it. Maybe it works for other dogs, but for mine, not so much.
Date published: 2016-07-25
Rated 5 out of 5 by from Great flea preventative For years I was using a different brand which worked great but then it wasn't as effective on my dog then I switched to k9 Advantix II And has worked effectively. No complaints here
Date published: 2016-07-25
Rated 1 out of 5 by from Did not work! I have a 11 year old maltese and I live in an apartment complex next to a golf course. Pest control sprays the complex for fleas. First time using this product and heard good reviews. I bought the 6 pack and ended up using it twice a month rather than once a month (the instructions allow that if infestation does not go away). Even though I doubled the dosage, fleas were constantly on him, it was as if he wasn't even on medication. Luckily this website was kind enough to refund my money. Never using this product again.
Date published: 2016-07-21
Rated 1 out of 5 by from Does NOT Work!! I have 2 dachshunds and 2 Newfoundlands so I bought (2) 6 packs for each breed and size. I tried the product the 1st month and had no problems, but the subsequent months it was a total 180. They were scratching and biting horribly. My Newf Dempsey actually started losing his hair around his elbows from biting and scratching so much, and I was pulling ticks off of them left and right. I finally had to go back to Frontline for fear that they would pick up some kind of tick born disease. I called Pet Meds and explained to them what happened and they instantly did everything they could to make it right. My money was refunded which went to pay for the Frontline that I had to order. I have been using Pet Meds for a few years now and would recommend them to anyone who want to purchase from a company that offers reasonable prices and great customer service. Poor rating for Advantex but 5 Stars for Pet Meds!
Date published: 2016-07-20
Rated 4 out of 5 by from All's well thus far! I have a tri-color Toy Fox Terrier, Jack. He's doing great with this vs. the cheap products at Wal-Mart (Hartz?) ... THAT stuff nearly physically cripples Jack, but this Advantix gives no obvious adverse effects and gets the job done well!
Date published: 2016-07-20
Rated 1 out of 5 by from BE AWARE! Be aware of this product! I have 3 Shih Tzu, and all 3 of them got the same dose (Med) as per the weight of the dogs on the box. All three have now had twitches in the back, legs and ears. There was no overdose of the medication, and in one of the dogs ,was probably too little dosage according to the directions. However, that dog has had the worst of the twitches. I would be aware of this side affect that is NOT listed on the product. I will not buy this product ever again and put my dogs through such discomfort. This is still going on as I post this, and its been 5 days since the application on all three. This is just awful. I would give it zero stars if possible.
Date published: 2016-07-19
Rated 5 out of 5 by from No fleas ever and ticks bite and die. There are so many ticks around my house in the country surrounded by woods and fields that if I don't use k-9 Advantix I pick ticks off my dogs daily. With k-9 Advantix, one bite and the nasty little blood suckers die. And we never have fleas at all.
Date published: 2016-07-16
Rated 5 out of 5 by from Works great This is the only stuff that works to kill fleas. I have cats and dogs and theres just no comparison with Frontline
Date published: 2016-07-15
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Q&A

should I bathe my dog before or after putting on her..she needs a bath desperately

Asked by: dana
Bathe beforehand. However, K9 Advantix II is waterproof so it can continue working even after your dog becomes wet.
Answered by: paulpharmacistintern
Date published: 2016-07-26

Can my dog be allergic to this medicine? When I put it on her she scratches & licks her back & bites her paws. Should I stop using it? 

Asked by: Samanthamccarvel
According to the manufacturer while rare side effect may occur after using a pesticide product. Mild side effects are sensation of burning, tingling, itching, redness or numbness of the skin can happen. According to Bayer the maker of this product the symptoms will dissipate within 48 hours, however if your pet is experiencing adverse reactions: 1) Stop applying the medication 2) 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. 3) Call your veterinarian 4) 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.
Answered by: Carolyn Petmed Pro
Date published: 2016-07-21

Can I give my dog a bath right before putting on k9 andvantix 2 

Asked by: Shelly
Yes, you can give your furry pal a bath 24 hours before or after giving the K9 Advantix II. You have to make sure the pet is fully dry.
Answered by: Carolyn Petmed Pro
Date published: 2016-07-21

Is this a product of USA?

Asked by: Anne
K9 Advantix II is made in Germany.
Answered by: James PetMeds Pro
Date published: 2016-07-20

How many treatment in box.

Asked by: rena
Hi there, these currently come in a 4 pack, 6 pack or 12 pack. Example the 12 pack would have 12 doses.
Answered by: James PetMeds Pro
Date published: 2016-07-20

My dog is 150 pounds and the largest dose does not seem to control the fleas. What can be done? I have had great success prior to the giant.

Asked by: Beckster
Hi there, normally it is one dose however you would need to ask your vet if you can double the dose on this medication since he is so large. He would be able to give you the correct advice since he knows your Furry Friends (medical) history.
Answered by: James PetMeds Pro
Date published: 2016-07-20

How long after administering k9 Advantix should the fleas be gone? 

Asked by: Susan
Hi, Kills 98-100 percent of adult fleas within 12 hours. Just a heads up, If you have a bad infestion in the house or outside that must be treated too. Treating the pet alone will not resolve this and the fleas will try to still get on your pet. Also if it is bad infestion while trying to resolve the issue you can treat your pet with a second dose after a week. it is not harmful to them.
Answered by: James PetMeds Pro
Date published: 2016-07-20

I put this medication on my dog over 24 hours ago. I also fogged my house. Tonight I'm still finding fleas on my dog. What do I do? 

Asked by: Susan
Hi there, you can dose him again after a week. To clarify, you can only do that with k9 advantix or advantage, it will not be harmful to your pet. Also when you apply do not wash him for 48-72 hours if you are using any soaps shampoos etc. You need to wait 24 hours if you wash your pet with just water after applying the medication. If the infestation is that bad where you still have fleas in the house you may need to fog again.
Answered by: James PetMeds Pro
Date published: 2016-07-20
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