This product made my dog act like she was on crack. I have a yorkie mix who a few hours after placing the flea treatment on started to become very paranoid of everything around her and began pacing non stop! I waited it out and left for work when I came back she was worse so I washed her twice. She still has crazy eyes and is very hyper but she's no longer continually moving. This stuff needs to be retested. read full review »