Hartz Flea and Tick collar made my cat sick!

About 5 hours ago I put a Hartz flea collar on my cat before I left for errands, and have noticed a complete change in his mood when I got home! Earlier today he was happy and moving about like he normally does but since I put the collar on, he has been lethargic and hiding under the bed (something he only does when he’s not feeling good). He also hasn’t been constantly purring and chipper like he usually does. I also noticed a lot of licking spots around the collar and he was kicking it as if he wanted it off. I can only imagine what would happen if he had it for the recommended 7 month duration. DON’T USE HARTZ FLEA COLLARS

Hartz Ultraguard caused severe neurological damage to my cat.

I applied one application of Ultraguard to my cat on a Sunday, but Monday night she was walking in circles and had lost all of her instincts: the ability to drink, the ability to eat, the ability to use the litter box, the ability to meow. The vet ran blood tests and ruled out any infections and reported that all of his organs were fine. The vet noted the bizarre behavior while examining the cat, listened with great interest when I told her I had applied the Hartz repellent 36 hours earlier and immediately had my cat bathed thoroughly. So a $350 bath at the vets very likely saved his life. Today, six weeks later, my cat no longer has to be feed by a spoon, but he has lost weight; hewalks aimlessly around the house all day or walks in circles; he displays NONE of the unique personality traits which I had become accustomed to over the last 3 years. Doesn’t come you whistle and say “kitty kitty.” Doesn’t sleep on the bed with me. Doesn’t cuddle up on the couch. Still cannot drink water properly, so I have to buy expensive wet food from the vet to keep him hydrated. The vet diagnosed his condition as neurological damage caused by Hartz’ Ultraguard Flea & Tick Repellent. What is the status of the class action? I can’t believe this ultrahazardous product is still for sale on Chewy.com and at Walmart (where I bought it). The only time I’ve ever bought flea and tick repellent from any place other than my vet, but I had just relocated after 24 years and didn’t have a vet – at least not until Hartz destroyed my cat’s life.

Irritates skin/ chemical burn

I saw a post about Hartz on Facebook about the harsh effects it has on pets and it reminded me of what happened to my three yorkie about 4 years ago when I used the hartz flea and tick ultra guard product on them with in minutes all three of my dogs started going nuts! They started inching like crazy and rubbing their backs on the ground, when I looked at where I put the drops there was a red patch on each dog. I gave them each a bath and brought them to their vet and they said that my dogs had an allergic reaction to the drops and was left with mild chemical burns. The vet gave me some kind of cream to put on the burns to help them heal. After that I never bought those flea drops again. I buy flea and tick drops from my local vet and have never had any reaction. Yes the drops from the vets office are a bit more pricy but at least I can sleep at night knowing that my dogs won’t potentially die from the product. Don’t buy product just because they are cheap… they are probably cheap for a reason!


My little chihuahua, Zoey, has been suffering for the past few days due to Hartz flea & tick drops. I applied a couple drops at the back of her head, and on her back above her tail. About every 10-12 hours, she starts to whine/squeal, won’t allow me to touch her head, and she seems to be struggling breathing! The only thing soothes her is a luke warm bath (and I’ve been using Mane & Tail shampoo). I gently wash the 2 “spots”, rinse thoroughly, carefully towel dry her, and she will lie in the floor for me to blow dry her. (She loves the blow dryer.) I set the dryer on low warm. She rests quietly for quite a while afterwards, and responds well, back to normal within about 20 minutes. Vet has been closed since Friday for the holiday weekend. We will be there first thing this morning.
What if I’d used the entire dropper? Zoey might have died. Now to find that health issues and death are widespread problems rampant from this product? I am beyond livid! It is inhumane that this product be allowed on shelves.