These flea drops about killed my cat also. He was given 3 baths to remove this stuff. It has been 2 months he is still sleeps all the time and is very skinny. He is eating now and looking a little better though. I'm still not sure if he will ever recover fully from using this product. It really upsets my young daughter that her cat is so sick. They ought to be ashamed of themselves selling this product. read full review »