We used Hartz Ultraguard spray on our baby, Samba, Wednesday. My husband recently was laid off, we just do not have a lot of money and this is the first time she has ever had fleas. We did not know how bad it was. I think we were lucky and we found this site before it had been on her for very long and after a few baths in Dawn we got it all off of her. She is just not the same cat, and we are so scared. She crashes into everything and her kitty grace is just gone. She has become distant and she just stares into space. Every now and then we can get her to play but not for a long period of time. We love her so much, we can’t have babies so she is our baby and the changes we can accept, we are just so terrified that it is the start of something so much worse and that she is going to get really sick or die. We talked to a vet and she said to keep an eye on her for a few days, but has no answers as to whether these changes are permanent or the onset of something terrible. I called Hartz and they are sending me a refund, and the lady on the phone sounded like she was totally bothered. I asked her if she uses it on her pets and she would not answer me.