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K9 Advantix II

Starts $60.61 $43.77 
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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 K9 Advantix II 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 3.7 out of 5 by 3528.
Rated 1 out of 5 by from Product didn't work!!! Last summer I spent well over $120 for three different sized dogs on K-9 Advantix II, and one week later, they were ALL fully loaded with fleas!!! Scratching their fur out and whinning uncontrollably! So DISSATISFIED with this product. Won't purchase this again.
Date published: 2017-03-17
Rated 5 out of 5 by from Works well on my dog's. I've used it for year's and no fleas on my dog's
Date published: 2017-03-15
Rated 5 out of 5 by from great product was using Frontline and my sister told me about this product,we live in the South where fleas and ticks are bad,it works great! well pleased!
Date published: 2017-03-13
Rated 5 out of 5 by from Happy dog I bought this product a week ago and my dog now is flea free..he can now sleep and go for walks..so far so good..let's see if it lasts a month.
Date published: 2017-03-13
Rated 5 out of 5 by from 1-800Pet Meds is Great!! I contact 1800Pet Meds about my dog Bella who has seizures it seemed like the fleaand heart worm medication would bring it on spoke with therepet adviser they suggested to split the flea med and wait two weeks and give heartworm I am so happy to say First time she didn't have a seizure thanks for the Great advice
Date published: 2017-03-12
Rated 5 out of 5 by from Greatest Overall Protection! We live in S. Florida where we are inundated with all types of tiny creatures year round, & our dogs are very susceptible to fleas, ticks, & especially mosquitoes, which here, have been known to carry the Zika virus. This is the only product out there that protects our babies from everything, including mosquitoes; they have never yet had a mosquito bite! Great protection.
Date published: 2017-03-10
Rated 5 out of 5 by from stops misquitos from biting also...best of all....
Date published: 2017-03-10
Rated 5 out of 5 by from great tasting... Come to think of it neither dogs ever had a tick. It must be the product that is successfully protecting my furkids. Enough about me, let's talk about you, what do you think of me? PetMeds has really been fiscally supportive by offering top quality products (many choices) at a lower price. thanks.
Date published: 2017-03-07
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Q&A

Okay so my dog used to have heartworms and I just want to know Can I use this with heart guard plus? or does it protect against them alone? And if so will it work as well as heartguard plus? I don't want her to get heartworms again. 

Asked by: Anniesmom
K9 Advantix helps prevent the transmission of heartworms, it does not protect against your dog getting heartworms. Adding Heartgard plus is safe and will work better to protect your dog against getting heartworms.
Answered by: Ben B
Date published: 2017-03-18

Do you deliver to Canada?

Asked by: Frckls2413
Yes
Answered by: Amy Petmed Pro
Date published: 2017-03-08

Doe K9 advantix II have the tick and fleas and mosquitoes in pill form? Thanks Betty

Asked by: none
The K9 Advantix medication only comes as an applicator to be applied topically on the dog. There is no pill form. There are other medications however that are pills and can be taken orally that work against fleas, ticks, and mosquitos. I would talk to your Vet about these options and what is best for your dog.
Answered by: Trey W
Date published: 2017-03-02

Why is the price almost 20 dollars more today then yesterday when checked? Then u offer a coupon?

Asked by: DEBBIE
It may be that the coupon amount has changed from the usual 10% to 15% (for a limited time) and you caught the website in the process of changing numbers around.
Answered by: SuzyCVT
Date published: 2017-02-23

will K9 Advantix protect my dog from fire ants?

Asked by: Larry
The labeling of this product does not indicate protection from fire ants.
Answered by: Amy Petmed Pro
Date published: 2017-02-21

hi my chihuahua is on the border line on weight she goes between 10-12 lbs which k9-advantage II should I get for her?

Asked by: Lola
I am very sorry, we can only advise to administer the medication the way the manufacturer intended, which is by weight class.
Answered by: Amy Petmed Pro
Date published: 2017-03-13

can I use shampoo to wash my dogs

Asked by: thom
WEN IS VERY GENTLE I USE SWEET ALMOND MINT, IT CONDITIONS AS IT CLEANSES, THEY ALSO HAVE 1 JUST FOR PETS. NO ONE CARE MORE FOR DOGS THAN CHAZ DEAN HE BRINGS HIS DOGS TO SHOWS & THEY R BEAUTIFUL. MY DOG IS BLACK AFTER 2 WKS HER COAT STILL SHINES ALL COLORS IN SUN LIGHT. QVC HAS CHAZ ON A LOT PRICES BEST THERE. BTW IS DOESNT MAKE LATHER BUT SKIN & COAT SOFT & SHINY.
Answered by: Lola
Date published: 2017-03-08

How many applications is there in one box? 

Asked by: Debbie
its best to get the 12 pk if you can afford it because fleas are around 12 months of the year now, thanks to global warming, the larger pkg the better savings you will get & God forbid if something happen to your family pet you can donate whats left over to your vet office for people that cant afford it. My vet has an angel fund for families that need help.
Answered by: Lola
Date published: 2017-02-17
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