My two cats had muscle trembling, and their pupils were dilated the next day after being given the 3-in-1 fleas and ticks control product by Hartz on Wednesday evening 5/25/05. What have I done to my two cats!! They meowed so much as if they were crying. One of them seems to be recovering, but the other still has his ears twitching constantly. He hid underneath the couch or in dark corners. I hope both of them will recover soon.
I thought the worst thing about using over-the-counter stuff is that it just doesn’t work. I didn’t thing that it can possibly kill my cats. I learnt a lesson but unfortunately at the expense of my cats’ lives.