Call their medical line!

I had no idea about the history of Hartz flea and tick prevention products causing harm to cats. Now I do.
At first she seemed fine, the product smelled quite bad I noted, but after about 6-7 hours, my cat was shaking severly. I immediately called my vet and thank God they took her in. I believe they saved her life. At which point they told me they personally do not recommend Hartz pet products for this reason. My cat had an overnight stay at a pet ER, but now she is in stable condition.
Calling the Hartz pet medical line was a hassle. The number is actually 1-833-289-4305. Your first knee jerk reaction is of course your need to vent and be upset, but please try and be calm. I tried to be. It’s a very hard thing to say that, “I’m sorry, but this product nearly killed my cat.” The lady I spoke with remained calm also, and she seemed to care about my situation as she asked for all the details and info of what happened. She gave me a claim number and asked to submit photos to the e-mail address that takes these claims. I am hoping they can pay for 600+ dollar vet bills. Reading these other stories I’m devastated this happened to so many. My heart cries for the ones who were not so lucky. I am so, so sorry for your loss. We could not have known or predicted it would happen. You purchase a product for your pet and trust it to work and not kill them. But then you find out it is known to cause severe adverse reactions. The best thing we can do is stay calm, phone them, and yes, tell all your fellow pet owners your experience so that change can happen. Thanks, and take care.

Healthy Pomeranian died within hours

My 14 year old healthy, active Pomeranian died within hours of application of Hartz Ultra guard. I initially thought that this was due to his age but the image in my head of him collapsing and gasping for breath made me go back and check the product. I still can’t believe that this happened because of a seemingly minor product. Now I am without my best friend and I blame myself for not knowing this.

Wish I Saw This Before

I bought Hartz Ultraguard for My cat who is about 10 months old, I’ve only had him for five days. It seemed like a good deal because frontline and advantage looked so expensive. After trying to make sure he didn’t lick until it was dry(he did a little), he started to scratch a lot. I thought it was just the fleas dying or Hartz doing its job. Then he threw up in the living room and had diarrhea, thankfully in the litter box. I called the emergency vet and was told how horrible Hartz is and to wash it off immediately and that I would still need to watch him throughout the night because it’s known to cause death in cats. It was only on him for a few hours and I’m really hoping that I got it off in time.

Bulldog died

I bought this medicine for my English bulldog, I gave her a bath and within 20 minutes she was dead. I called the maker of this product and told the lady what happened and she ask me was it an expensive dog or what? I said what does it matter? She said well I wouldn’t want an expensive dog to die. She took my name and I never heard from them again!

Lost our family member

It was a few days after my son in law gave our family member Sadie Star a bath she started having seizures and ran into the cabinets causing her to have a full blown seizure I’m a tow truck driver and was out on a call when my wife called and told me what was going with our beloved Sadie Star it was after hours and no vets in our area of Jackson Mich. Were open so she loaded Sadie Star up in the our car and drove her 45 minutes away to Ann Arbor where a emergency vet told her that Sadie Star was suffering from a seizure and her heart was failing and said it would be over $2000 to possibly save her but no guarantee and if we wanted to put her down it would be additional $1500 so when my wife called and told this information we decided to bring Sadie Star back home and make her comfortable as much as we could and about 5:45am on 03/11/2019 our beloved Sadie Star was gone she was 11 years old and in good health until this all happened