I had no idea until yesterday that Hartz UltraGuard Plus Drops for Cats killed our beautiful 16 yr old kitty Greta. I am so sorry that we did know that Hartz products were so dangerous to our precious pets, and wish I had thought to google it before we gave this product to our 2 cats. Poor Greta really suffered, and I am heartbroken that I did not even connect the flea drops to her sudden illness. She seemed okay for about one week after we applied the drops, but then she was so sick, I had to take her to the vet to have her put to sleep. The first day she was ill, she had diarrhea, then she vomited for hours, our baby was in such pain, she cried everytime she had to throw up. She did not eat or drink anything. The next day, she seemed very thirsty, but everytime she drank water, she would urinate as she was drinking the water. Sadly, she was sick on a weekend, and by Sunday evening, she was just wiped out, lethargic and just tired of feeling so sick. I took her to the vet on Monday. He thought it was either diabetes or renal failure. She was so dehydrated that he couldn’t even find a vein large enough to give her the needle to put her to sleep. Her bladder was very full, this means her little kidneys were not working. I read many of the posts from pet lovers like us who have experienced what we have just been through. I am grateful for this website, and I will do what I can to spread the word to hopefully one day get these products off the market.
My heart is broken to realize that we may have been able to save our cat if we knew how lethal Hartz drops were. I’m so sorry Gretie, we put you to sleep too soon. We love you and will try to help other cats in your memory.