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Flea Prevention that kills within 12 hours
 
  • Repels & Kills All Life
        Stages of Fleas
  • Repels & Kills
        Mosquitoes
  • Repels & Kills Ticks
  • Repels Biting Flies
  • Kills Chewing Lice
  • Waterproof

  • DO NOT USE ON CATS. Do not allow your cat to come in contact with a treated dog for 24 hours.
     
     
     

    K9 Advantix II

     
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    Starts at $51.49 Ships in one business day or less
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      Product Info   How to use   Ingredients   Customer Reviews   Q & A  

    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.

    K9 Advantix II
    For: Dogs and Puppies (only over 4 lbs and 7 weeks of age or older)
     
    Benefits:
    Repels and kills fleas, ticks, and mosquitoes
    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
    Repels disease-carrying mosquitoes before they bite
    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. See our K9 Advantix II Adverse Reactions page for symptoms and treatment of adverse skin reactions.


    More Information:
    Brand Name
    K9 Advantix II (Bayer)
    Active Ingredient(s): Imidacloprid (8.8%), Permethrin (44.0%), Pyripoxyfen (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: A sensation of burning, tingling, itching or numbness of the skin may occur after topical application. This sensation usually begins 1-2 hours after application and should usually go away on its own within 1-3 days. Shampooing the skin gently, but well with a shampoo such as Tea Tree Oil Shampoo and rinsing very well should help the pet feel better, sooner. Individual sensitivities, while rare, may occur after using any pesticide product for pets. If signs persist, or become more severe, consult a veterinarian immediately.

    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.
    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 two or three spots on 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:
    Pet Weight Dosage
    Dogs/Puppies:
    (7 weeks of age and older)
    1-3 lbs
    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:
    Horses:
    Storage: Should be stored in a cool dry place. Do not refrigerate.
    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
    K9 Advantix II 3.7 5 3446 3476
    Product works very well!! K-9 Advantix works very well for my dog Bentley. I used to use Frontline and once in a while I would see a flea. With K-9 Advantix, I have not seen anything on him in the past 6 months. I even get compliments from his groomer. 05/06/2013
    K9 Advantix II My Mizo has been taking this product for 6 months and I just renewed his RX. He seems to be doing very well with this product. 05/23/2011
    Advantix vs Advantage or Frontline "My Experience" I had always used Advantage or Frontline on my German Shephard, but decided to try Advantix because it treats more pests. For about a week after applying Advantix my dog would ly on his back and roll around on the carpet and grass like his back was itchy or irritated. He never did this with either Advantage or Frontline. 05/16/2011
    works well, my dogs had no fleas at all last summer 04/05/2011
    1800PETMEDS I am pleased with the product, my dog did not have fleas however the medicine is continuing to keep them away. I wanted to state that this was my first time using 1800petmeds and I thought the service was wonderful. Easy ordering, comparable prices, and fast shipping. And thanks for the dog treat, Lexi enjoyed that!! 03/29/2011
    2 3 4 5 ... 116 Next
    871 Questions · 1,352 Answers

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    2 days ago
    by
    Chas
    NH
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    Answer: 
    Yes. I would if I were you. I am in Boston and ticks are out year round. They just aren't as active but still can cause problems and the fleas are looking for a nice warm place to come in from the cold. I treat resident and foster dogs year round
    1 day ago
    by
    Rescue Foster Mom
    New England
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    My dog is on Trifexis for heartworm prevention. Can I use a flea product such as Advantix II in addition? will doing so cause any side effects??
    1 week, 3 days ago
    by
    Widget
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    Answer: 
    NO. If your dog is covered using Trifexis, he/she is protected from fleas, heartworm and various intestinal parasites. K9 Advantix II is used for fleas and ticks, and to repel mosquitoes and chewing lice. You cannot use both Trifexis and Advantix II at once. The ingredients from both products (while different) are used for similar purposes and could possibly cause a serious reaction if combined. If you use Trifexis as directed, you do not need to use additional products.
    1 week, 1 day ago
    by
    VTDogMom28
    Pennsylvania
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    1 week, 4 days ago
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    Widget
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    Answer: 
    Thank you for your question. Please wait 48 hours before and after application to give your dog a bath.
    1 week, 3 days ago
    by
    Maureen PetMeds Pro
    Pompano Beach, FL
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    2 answers

    OOPs, correction:

    This is a liquid!

    I'm a scientist and can accurately measure out exactly 1/2 of the vial of the K9 advantix II

    Can I use half the liquid on my 25 lb dog?
    2 weeks, 4 days ago
    by
    VG
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    Answer: 
    (comment from vg)

    If the BLUE vial can treat a dog from 55-145 lbs (according to another question in this forum) - this is a 90 pound range - then, it is logical that a carefully measured half a vial would treat a dog of 27-70lbs and save quite a lot of money.

    It appears the manufacturers would REALLY like consumers not to split the vials for no reason other than less profit for them, IMHO.
    2 weeks, 3 days ago
    by
    VG
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    Answer: 
    Thank you for your question. It is not recommended to split the medication as each dose is predetermined by the manufacturer to ensure your dog gets the exact dosage needed.
    2 weeks, 3 days ago
    by
    Maureen PetMeds Pro
    Pompano Beach, FL
    0
    0
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    Thanks for Voting
    I have a supply of the larger tablets (previous dog), and if the ingredients are uniform throughout the pill then cutting it in half should work fine.

    Is there any reason I should not? I have a pill cutter that would be exact. Thank you.
    2 weeks, 4 days ago
    by
    VG
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    Answer: 
    Advantix II is not a pill, it is a liquid meant that is applied topically.
    1 day ago
    by
    Rescue Foster Mom
    New England
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    Answer: 
    Thank you for your question. This product is topical that is placed directly on your dog's back in 3-4 places; it cannot be divided for smaller dogs.
    2 weeks, 3 days ago
    by
    Maureen PetMeds Pro
    Pompano Beach, FL
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    2 3 4 5 ... 30 Next
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    This information sheet is for educational purposes only and is intended to be a supplement to, and not a substitute for, the expertise and professional judgment of your veterinarian. The information is NOT to be used for diagnosis or treatment of your pet. You should always consult your own veterinarian for specific advice concerning the treatment of your pet. The information is not intended to cover all possible uses, directions, precautions, warnings, allergic reactions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for your pet. It is not a substitute for a veterinary exam, and it does not replace the need for services provided by your veterinarian.
    Note: Any trademarks are the property of their respective companies.
     
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