Hartz Flea Collar Caused Seizures

About one month ago I bought a Hartz Control Flea and Tick collar at Wal-Mart for my dog Roger. He is a 9 year-old Australian Shepherd. I put it on him that night and thought nothing of it.

Three days ago Roger had a gripping seizure. He was calmly snoozing at my feet one minute and convulsing, frothing at the mouth and stiff the next. To our knowledge, he’s never before had a seizure. I took him to the vet’s yesterday and he checked out okay. After some advice to look up the chemicals in the collar online, I found that one of the main ingredients, tetrachlorvinphos (an organophosphate), has been known to cause several side effects in both cats and dogs. I’m convinced this is the cause of Roger’s seizure and immediately removed the collar upon becoming knowledgeable of the effects.

Roger hasn’t had a seizure since, though it’s only been three days. However, I’m praying that since removing the collar, he won’t have another episode again. After perusing this site and the horror of my own experience, I certainly won’t be using any Hartz products, and I will be sure to warn others.

6 thoughts on “Hartz Flea Collar Caused Seizures”

  1. I, too, had the same experience with the Hartz brand flea collar. I have 2 dogs, both mixed breed, but only my “schnoodle” was affected with these terrifying seizures. Unlike Rogers owner, I didn’t figure it out until 3 days (and 3 hour long seizures) later. Since I took the collar off of him, he has been fine. I hope this helps other pet owners!

  2. One of our dogs had the same effect within 1 day of adding this same collar. She is still sick 9 months later, she had 3 seizures today. They are hard to watch.

    1. We have 2 poms and we too think these colors are linked. After a long 2-3 minute sesure with him running in place and foaming and head shaking it was a horrific experience I quick took the collar off and see this blog and new my Instinks could be right…the sad thing is how do we protect our dogs from ticks…aargh

  3. I have a Terrier – Pom mix and had similar results. She just dropped and when I picked her up her mouth was closed very tight.
    Walmart needs to remove these collars. Byers

  4. I have a pug with same problem
    She had a seizure took her to vet
    Vet didn’t know about the collar
    We took collar off and no more problems
    The collar should be removed from retail

  5. Yes, I have a Yorkie and he also had seizures. Last summer he had 2. All winter he had none. Soon as we put new collar on in March. He had a bad seizure last night. It’s very scary to see him go through this. We took his collar off last night. He will not be wearing one ever again.

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