I have never heard about any problems with Hartz brand animal products, so when I stumbled onto this site, I was quite surprised. Between my parents and me, we have 4 dogs (2 rat terriers, a “Heinz 57,” and a golden retriever) and a couple common housecats. We would all be devastated if ANYTHING were to happen to them, so I’m going to call my mom right now and tell her to get rid of anything Hartz around our house.
Thank you so much for this valuable information. I’m terribly sorry that anything like this had to happen to you.