Keiko was on that in the past. Also known as PPA or phenylpropalam ine (sp?). We were able to take her off of it after a mix up with her prescription which caused her to be off of it for a month, and she was fine, so I've just left her off of it.
I have heard before that it has been linked to aggression in some dogs.
At this point, as long as Keiko gets out 5 or more times a day, she seems okay (fingers crossed), but since she started incontinence early (4 yrs old), she will probably have to be put back on something in the unforseeable future.
But thanks for the headsup. Alot of people don't know the side effects of many of the drugs their pets are on. We should all learn to be more aware.