I live in Fresno, California. My Vet. is in Reedley. I trust him with all of my pets. One day I brought my kitten in after putting the Hartz drops on his neck. I didn’t put the recommended amount because it seemed quite alot to me, thank God. My Vet. immediately washed Mo (my kitty) and told me that several cats and kittens have died and suffered seizures from the Hartz products. That is from the Vet. himself. He is the only Vet. at the Reedley Vetrinary Hospital. I’m sure he would be interested in this website.