We were told that the Hartz flea and tick product that was applied to the dog caused the seizures and the death of our kitten. The product was not applied to the kitten just to the dog- but because of some type of exposure to the chemical ( same found in the cat drops) the kitten had high fever and seizures and trouble walking – then brain damage… On the label it say to keep product away from birds and fish- nothing about cats. Both Petsmart ( who showed us by pointing the product out on the shelf) is this the product you used? Then the Emergency Vet Hospital who treated her also was aware of this product. To find out this has been going on for years… Ahhh. Noboby should have to go thru the mental and financial hard ship our family went thru.