Click to enlarge

Do not use on cats.


K9 Advantix® II
Flea, tick and mosquito treatment for your dog.

When the bugs are off, the adventure is on. K9 Advantix® II kills and repels fleas, ticks and mosquitoes through contact — no biting required. It also kills lice and repels biting flies.

Do not use on cats.

K9 Advantix<sup>®</sup> II small dog product packaging 2 doses.
Click to enlarge Click to enlarge

Do not use on cats.


Choose what’s right for your dog:

Weight Band:

Monthly Applications:

K9 Advantix® II FAQs

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

How long does K9 Advantix® II last?

Can I bathe my dog after applying K9 Advantix® II?

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

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

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

Can my dog go swimming after using K9 Advantix® II?

How does K9 Advantix® II work?

How do I apply K9 Advantix® II?

How to Apply K9 Advantix® II


An easy-to-apply topical treatment.

View transcript

The bond between you and your dog is incredibly loving and loyal. He wants to protect you and you feel the same. That’s why Bayer Animal Health recommends the use of flea or tick prevention products year-round.

Before applying a Bayer topical product, check the weight range and minimum age on the package to select the appropriate product for your dog.

Monthly application is easy. Remove the tube. Hold the tube in an upright position and away from your face. Open the tube by pulling off the cap, turning it around, and placing the other end of the cap on the tube. Twist the cap to break the seal, and remove the cap from the tube.

For easy application, your dog should be standing. Next, starting at your dog’s shoulder blades, part the hair until 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.

The number of application spots depends on the size and weight of your dog.

Weight bands are indicated in your complete instructions on the package insert. Be sure to empty the entire tube by the end of the application. Do not apply an excessive amount of solution to any one spot that could cause some of the solution to run off the side of your dog.

Lift the tube away from the skin, while maintaining pressure on the tube to make sure the product has all been squeezed out.

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