I gave my cat a flea bath using thr hartz shampoo, cause my sister moved in with her cat. My older male cat started foaming at the mouth and laid there convulsing.. i rinsed him off forever as i knew this has never happened befote but all of a sudden it did, so i tied the two together. Happy my lil buddy made it through. Was a very scary moment. Ive never touched this product ever again and they should be shut down asap!!!