Not knowing I went to Publix to buy Hartz Flea and Tick (the one that goes from shoulder blade to tail). I have five dogs and I bought one for each by weight. Thank god I did not use the full tube on each of them. My 16 year old chihuahua went crazy running all over the house, breathing heavy and her eyes were greyish. My schnauzer and 2 other medium dogs were breathing heavy and couldnt sit still. Its almost like someone was pinching their butts and then they would run. It didnt phase my bull mastiff thank god. I have been giving them all a bath daily and they seem to be coming around except for the oldest How dare anyone keep these on the shelves for sale. My 16 yr old dog can die just because someone wants to make a buck. I would have never expected this from Hartz and I am sure going to be a nonsense and spread the word. I was talking the employees at Publix which have experienced the same. This is disgusting and thats coming from someone who really loves her dogs… Not even winning a potential law suit can compensate for my loss. What can we do? There has to be something.