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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.

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.

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:

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.

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 3.708 out of 5 by 3,664.
Rated 5 out of 5 by from great stuff I used this last year and nothing ,nothing got on mya,s hair.....got it again this year ....that is the only stuff that put my mind at ease. ...worry free....
Date published: 2016-03-23
Rated 5 out of 5 by from Bet product ever I have owned Rottweilers since I was a teenager. I've tried several medications and this by far is he best product I've ever used. I do NOT recommend frontline for this breed of dog it caused neurological problems on ALL 3 of my Rotts. I have NEVER had a bad reaction with advantix and it has worked amazing for flea and ticks.
Date published: 2016-03-20
Rated 5 out of 5 by from Works great! By now my girls would have a fleas and a tick on them, I put Advantix on and so far nothing! I'm so glad. I can walk them with no worries!
Date published: 2016-03-17
Rated 1 out of 5 by from Not happy This product made my poor dog itch like crazy for several days. I felt terrible. Thank goodness for 1-800petmeds. They refunded my money. Going back to Frontline.
Date published: 2016-03-11
Rated 5 out of 5 by from Works great! So far so good! My baby is not itchy and not scratching anymore!
Date published: 2016-03-11
Rated 5 out of 5 by from Highly recommended I've used this product for about 6 years, prior to that I used Frontline and it didn't seem to be effective. I have 4 dogs that are each 100 lbs+ and K9 Advantix is the only product I've found that is effective especially on ticks. It also works well for repelling mosquitoes and horse flies.
Date published: 2016-03-08
Rated 5 out of 5 by from Safe and effective. I bought this in a 12-pack to split between my dog, my parents' dog, and my boyfriend's dog. My dog, Mimi, has had no reactions to this medication and has also not gotten any fleas or ticks since having it applied. It is also easier and cleaner to put on than other topical flea and tick preventives because it is a smaller tube.
Date published: 2016-03-01
Rated 4 out of 5 by from better than Frontline! Frontline was not killing our fleas and my dog was still covered. I decided to try K9 Advantix and it is doing a great job. I can tell immediately when it wears off, because she has fleas again. Glad I finally found something that works so good.
Date published: 2016-02-29
  • 2016-03-25T06:05CST
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Q&A

My dog weighs about 55 lbs, might go a pound or 2 over or under. Should I buy the 21-55 lb or the 55 lb+?

Asked by: allison
The 55 lbs and over is recommended for dogs over 55 lbs even if it is a pound or two over 55 lbs. However, if your pet fluctuates and gets under 55 lbs more than over 55 lbs, it is recommended to stay with the 21-55 lbs dose.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-24

I have boxers even putting the tube in 6 spots on them I still have some liquid in the tube is this normal? If I add the full tube it will run all over their backs.

Asked by: Jessica2
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. You may want to go down deep into the skin when applying drops or trying 7 or 8 spots instead of 6.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-23

How many days do I need to wait after I apply Advantix to give my furry babies a bath? 

Asked by: Donna
24-48 Hours.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-21

Does this protect against heart worm too? 

Asked by: Joanne
No, K9 Advantix II is used for the topical prevention and treatment of ticks, fleas, mosquitoes, biting flies, and chewing lice on dogs. It 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.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-20

Dobi need to send you a prescription

Asked by: LINDADEEBAKER
No, this is an Over the Counter Flea and Tick Preventative.
Answered by: Pharmacy Manager
Date published: 2016-03-19

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

Asked by: Pixies mom
The 4-10 lbs dose is the appropriate dose for dogs up to 10 lbs. If your furry baby fluctuates and goes over 10 lbs, you will need to go a size up, which is the 11-20 lbs dosage.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-17

How between treatments on my dog

Asked by: Lloyd
Are you asking how long is this product effective between treatments? If so, this product should be applied every 30 days.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-17

How long after applying can dog be bathed

Asked by: nosie
Bayer recommends waiting 3 to 4 days after applying to bathe your dog.
Answered by: Cherley Petmeds Pro
Date published: 2016-03-20
  • 2016-03-25T06:21CST
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