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Stephanie from Waxahachie, Texas writes

How long does the chemicals from the Seresto collar stay in my dog’s system, after taking it off?

My Great Dane has epilepsy and is very touchy when it comes to flea and tick prevention. I took it off, because he had been seizure free until he started wearing the collar. I want to know how long the product stays in his system.


The Seresto Dog Flea and Tick Collar is only releasing the active when it is on the dog.  Once removed this stops and should be gone within a few days though you can bath your dog with warm water and soap to remove quicker.

If your dog is experiencing an adverse event, contact your vet and call 1-800-422-9874

Answer last updated on: 05/28/2021

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