Here's one article I had bookmarked (it's from 2006). Not very encouraging.
ETA: Oops, I bookmarked page 2 for some reason. Start article here:
http://www.nytimes.com/2006/02/23/he...ewanted=1&_r=1
I have used it with dogs and it did seem to work. As others pointed out, there's no placebo effect with dogs.



Reply With Quote