How do you apply the topical treatment? Is it messy?

To apply, remove applicator tube from the package. Use scissors and peel down foil. Hold applicator tube in an upright position and pull the cap off the tube. Turn the cap around and place other end of cap back on tube. Twist cap to break seal, then remove cap from tube. The dog should be standing for easy application. The entire contents of the K9 Advantix II tube should be applied evenly 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 the dog. Discard the empty tube.

How long do I need to wait before I can cuddle and pet my dog after using K9 Advantix II? How long do I have to wait to bush him and is that fur toxic?

Once the treatment has been absorbed by the dogs' coat and they're fully dry, normally between 1-5 hours depending on the environment, the treated area should be safe for anyone to touch. It's always recommended to wash your hands after touching your pet.

I have a dog and two rats at home, can I use this on my dog even with the rats in the same home? I seen that it is dangerous for cats but not sure about other pets.

K9 Advantix for Dogs (containing pymethrin), Advantage ll (containing pyriproxyfen) should not be used with or around rats due to increased toxicity.

K9 Advantix II Flea & Tick Spot Treatment for Dogs, 21-55 lbs, 2 Doses (2-mos. supply)

Name: K9 Advantix II Flea & Tick Spot Treatment for Dogs, 21-55 lbs
Brand: K9 Advantix II
SKU: 75489
Availability: InStock
Rating: 4.4961 (4656 reviews)

By K9 Advantix II

Rated 4.5 out of 5 stars

4656 Ratings

27 Answered Questions

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About This Item

Helps to protect dogs weighing 21 to 55 pounds from fleas, ticks, mosquitoes, biting flies and lice.
Starts working within hours of application.
Kills and repels on contact, so fleas don’t have to bite your furbaby to die.
Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours.
No prescription needed.

How to open:

Be sure tube is at bottom of pouch.
Using scissors, cut the pouch across the top and remove tube.

How to apply:

Use only on dogs.
Remove applicator tube from the package. Use scissors and peel down foil.
Hold applicator tube in an upright position. Pull cap off tube.
Turn the cap around and place other end of cap back on tube.
Twist cap to break seal, then remove cap from tube.
The dog should be standing for easy application. The entire contents of the K9 Advantix II tube should be applied evenly 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 the dog.
Discard empty tube.
In cases of severe pest infestations, retreatment is allowable earlier than 4 weeks. Do not retreat more often than once every 7 days. After pest control is attained, return to a monthly retreatment schedule.

K9 Advantix II Use & Care Instructions

Dog Weight	K9 Advantix II	Volume
Under 10 lbs	Small Dog	0.4 mL tube
11 - 20 lbs	Medium Dog	1.0 mL tube
21 - 55 lbs	Large Dog	2.5 mL tube
Over 55 lbs	Extra Large Dog	4.0 mL tube

Where is this product sourced from?

We source all our products from manufacturer approved distributors or directly from the manufacturers. Chewy takes pride in ensuring that our furry friends’ wellbeing is always our top priority. We have worked hard to partner with all of the manufactures to deliver 100% authentic products

How long after using another topical product do I need to wait before applying K9 Advantix II?

Please consult your dog’s veterinarian for their recommendation. Do not use K9 Advantix II on cats.

How long does K9 Advantix II last?

A single application of K9 Advantix II keeps working for a month. Do not use K9 Advantix II on cats.

Can I bathe my dog after applying K9 Advantix II?

Yes! However, we suggest bathing your dog before applying K9 Advantix II. Just make sure your dog is thoroughly towel dried. If you choose to bathe your dog in between treatments, we recommend use of a general grooming shampoo for pets. Do not use K9 Advantix II on cats.

Can I apply K9 Advantix II more than once a month?

A single application of K9 Advantix II remains effective for four weeks. However, if the dog has a severe infestation, retreatment within a month may be necessary. Do not retreat more than once every seven days not to exceed weekly treatments. After flea control is attained, return to a monthly treatment schedule. Do not use K9 Advantix II on cats.

Why do I still see fleas after using K9 Advantix II?

Although K9 Advantix II kills fleas on your dog, there may still be fleas in your dog's environment that have since jumped on after treatment. Luckily, with K9 Advantix II, new fleas are killed within 2 hours with protection against further infestation for at least 4 weeks. As fleas die they are no longer able to stay hidden against your dog's skin, and therefore you may also be seeing dying fleas coming to the surface of your dog's fur coat. Do not use K9 Advantix II on cats.

How long does it take for K9 Advantix II to work on fleas?

K9 Advantix II kills fleas within 12 hours. New fleas that jump on the dog from the surroundings, such as grass, carpet and pet bedding, are killed within 2 hours with protection against further infestation for at least 4 weeks. Do not use K9 Advantix II on cats.

Can my dog go swimming after using K9 Advantix II?

Yes! Your dog is free to take a dip after K9 Advantix II has been on for 24 hours. More frequent swimming may keep the product from working for the full 30 days. Do not use K9 Advantix II on cats.

How does K9 Advantix II work?

Not all products work the same way: K9 Advantix II is applied to the pet's skin, spreading the active ingredients over your dog's body to kill fleas, ticks and mosquitoes through contact. No biting required! Do not use K9 Advantix II on cats.