If your pet suffers from Hartz poisoning

Someone on the FelineOwnersAgainstHartz Yahoo group posted this very useful link about what to do if your pet suffers from Hartz poisoning.
It’s on a veterinary clinic site, and they also explain the effects that the toxins in Hartz products
have on companion animals and what to look for:


(Thanks to Val)

Almost lost my cat

Like everyone else, I was unaware of the danger of Hartz Advanced Care flea and tick drops. After following the directions precisely as the packaged label stated, I noted within a few hours that my beautiful calico cat was suffering from muscle tremors. She was rushed to the vet where she was diagnosed with pyrethrin toxicity (yes from the flea and tick drops poisoning her!!!) She had generalized muscle tremors, was mostly unresponsive, had an elevated temperature and heart rate. She required immediate bathing, IV Fluids for 1 and a half days as well as several dosages of methocarbamol, a muscle relaxant. She continues to be pretty out of it and lethargic even 3 days home from the hospital. When I spoke with the Hartz corporation they were nonchalant to say the least……..I am now working on getting my “Pumpkin” back to good health and on alerting all pet owners that I know. I think mass emails would do nicely.

My Vet thinks

A few days after applying Hartz flea drops on our cat, we found him acting stangely. First, he kinda hid outside and would’nt come in the house. A few housrs later he came in, but pretty much stayed in the same spot for hours and would’nt eat. After two days of not eating, he finally took some milk. Then we noticed his pupils were completely dialated,and were’nt reacting to light. We took him to the Vet where he was given a complete blood test, which showed nothing wrong. When I told the Vet he started acting stange after the drops, he said it may be the cause. We had to have him bathed by a professional groomer, and the Vet gave him several shots to counteract a possible reaction. After three days, the cat still has fully dialted pupils, but is eating and drinking normally.I have to take the cat back to the Vet in a few days.I found the empty vial of Hartz drops and plan to take them with me. If this is found to be the problem, I intend for Hartz to hear all about it!!

Hartz gets even lower…

I was in my local Sears Hardware Store on Tuesday to buy a sprinkler…I noticed the flea and tick medicine right next to them and thought I should get some for my dog and cat. I even looked at the packages to be sure they were “newer” and not old dusty stock. They were in bright shiny new packages. I went home and followed the directions for both pets… stripe on…. base of head to tail. It was a busy night and I didn’t realize that my cat had spent most of it hiding in the closet. The dog was fine. The next day, my cat, Dexter was having tremmors and leg flailings and was hiding. He was licking at his back. I washed his back with a wash cloth to see if that would stop him from licking. It didn’t. I looked on the back of the package and it only said something about redness and skin sensitivity. I washed him in the sink because he was still having the tremors. I called the vet and was told to take him into the emergency vet hospital. He was freaked out by being there but the tremors weren’t as bad. The vet said he was better than most and that it was a good thing I washed him. She told me to take him home and wash him again. I did. He looked bad still the next day. I went to a Petsmart vet and Dexter was placed on IV fluids and was given muscle relaxers. I had to leave him there and went back to Sears Hardware. I took about 40 mislabeled packages off of the shelf and gave them along with the EPA regulations to the manager. It turns out they just started carrying Hartz products 4 months ago!!!!! Hartz has stooped to an ALL TIME LOW!!! They knew they weren’t supposed to send out this product with the bad label after November and they did it anyway! I am so mad! I get to pick Dexter up in a half hour. Poor baby had to spend 2 days at the vet! After all that I’ve read, I feel lucky though. He still has some tremors and ticks, but hopefully they’ll go away. Sears, by the way, has been wonderful. They’ve contacted Hartz and are sending back the old packages and have spread the word to all branch stores. I’m contacting anyone who will listen. I guess Hartz thought they could get away with sending the old packages to a hardware store because people would think it was there for a long time. What jerks! Any suggestions?

What I’ve Seen

From the knowledge I’ve recieved working in the veterinary field, most flea & tick topicals should be used with caution on our pets. But, I have to say, I’m going on 5 years in this field and I’ve never seen one product alone cause sooo much harm and sometimes death as this product. When a person comes in with a pet with tremors and says the only thing that they have done different that day was apply a flea topical, they always look at us in amazement when we say, “Did you use Hartz by any chance?”. Please use the flea and tick control your vet recommends. Yes, I know it costs more, but from what I’ve seen, its worth every penny. I would never use Hartz on my 2 cats. I don’t know anyone in the vet hospital I work at that would either.


My cat Chloe almost died this past Sunday. I believe it was a direct result of us applying Hartz flea droplets a week ago. She could barely breath I had to take the poor thing to the emergency vet clinic where they drained her lungs, which in itself is a life threatening procedure. On Monday I took her to our regular vet who tested the vial of fluid drained out of her. She was also negative on every test they gave her for disease. The vet has come to the conclusion that she developed some type of infection or reaction which caused her lungs to fill up with fluid. I believe it was the Hartz because she showed no symtoms prior to the application of flea medication. If anyone’s pet has shown similar symptoms after being treated for fleas please contact me @ [email protected] Thank you in advance
Anne Tamel

Pretty All White Poodle Named Lil Girl Gets Ugly Black Spots

I’m searching for a current lawsuit against the Hartz company involving dogs. My beautiful all white poodle could of been a show dog before I used Hartz flea treatment on her. Within a few weeks of using the product she started getting two blackish brown spots in the exact spots I placed the treatment and they grew until now she has two horrible dark spots on her back. It even turned her skin the same color. I took her to the vet and he said that he has seen it many times from using those drops. I’m so happy that it did not cause her more damage although she throws up now and then now. If anyone knows of any suit I can join against this company for dogs, please email me at [email protected]. My name is Gina. Thank You!

I got very lucky…

I was very lucky with my Hartz experience. Although, at the time, I had no idea. I noticed my two 10 month old kitties were scratching often, and I noticed some fleas. Fearing an outbreak, I bought the Hartz medicine thinking I’d wipe it out before it got out of hand.
I applied it to one of my cats. It got too low on his back, and for fear of him licking it, I washed him off immediately. I don’t know why I didn’t think about the cats licking each other, but I didn’t. About a week later, I noticed a big dry bump of skin on my cat’s back. That is when I started to look up info about Hartz.
I was shocked at what I found and how close I was to hurting my kitties. I was very upset and very grateful at the same time. I have written PETA on this matter. They fight tooth and nail for animal rights, and I think that some organization like that will need to get involved for these products to stop being made.

My 8 year old cat is mentally & physically damaged after seizures

July 2003. Our cats are indoor/outdoor cats. We usually use a flea collar but switched to the Hartz flea and tick spray a week and a half ago. Our black cat Freddy was sprayed the first day. The other cat the next day. The next morning we found him in full seizure. We quickly took both cats to the vet where they were bathed. Freddy has been at the vets since. He doesn’t appear to know anything anymore, like he has brain damage. They were able to comfort him and reduce the seizures for the first couple of days, then he ran a fever of 105.5 so it was necessary to put him on antiobotics. He couldn’t move for several days, but now is sitting up and walking some. He appears to have injured his back during a seizure. He always turns his head and neck to the left and looks lost. He has not recognized me since the second day of seizing. He even growels at me now. He sits in the cage and looks lost and scared. I believe he has lost some vision. His eyes are still somewhat dialated even after 1 week. When we get him out of the cage he looks confused, and possibly in pain. He ate food one day, but has quit again. Does anyone know anything about recovering from this severe poisioning? After having a catheter for a day or so, He is not able to go to the bathroom. and does not know us anymore. I don’t know whether or not to have the vet put him to sleep or keep hoping he will mentally and physically come back to us.

We looked on the internet and found all this info about Hartz products and realized that we are a year or two behind the game. My children cry and want their cat back. Yet, I do not know what to do anymore. Our hope is fadeing, and our vet bills are high. I plan to send the vet bills and diagnosis to Hartz. But thats not the point. We love our cats of 8 years.

Bulldog dies

Subject: HartzVictims.org Feedback 
From: “jerry katz” 
Date: Sun, July 20, 2003 7:33 pm 
To: HartzVictims.org

Sender’s Name: jerry katz

Message: i used hartz flea & tick 2 in 1 on my 6 year old bulldog saterday night…1
hour later she died…the vet said it happens all the time…we are heart
broken…and in total shock…..we dont know what to do but this product is a