OMG I was checking on sergants gold for my under 5lb kitty. We gave her the flea drop and figured for 10$ at walmart hopefully it will work. So far the fleas are still there and its been about a week or 2 since I gave it to her. I didnt respond much to her changes thinking maybe she was just over loving or whiny, but now I am freaking out, I noticed she has been scratching her neck a lot, she has a lot of scratchs on her face. She lays on me a lot more and even crys at me during the night when I am on the computer. I figured she was over needy, I have no idea if this is a reaction and dont have any money to take her to the vet to be sure. (I am disabled and on SSI so money is tight) I am scared for my kitty after reading all this information. How can they market such a dangerous product. I gonna try bathing her (wish me luck she is fiesty with water) and see if I cant get that horrible medication off her... ; ;