I used this product on my cat in March 2003, and he seemed to get very sick from it. He held his eyes half closed and was very aggitated for about a day or so. My brother commented that maybe I shouldn’t use the rest of it, so I never did. I didn’t think much else about it, except yesterday when I saw a news story about cats getting sick or even dying from this product. I would have been devastated if my cat had died from this product, and it scared me to my bones that I could have harmed him without knowing it. Hartz MUST take this product off store shelves!