It isn't known for this but I think FOR ME it acted like a mild mood stabilizer. I think that I got several years that let me finish graduate school out of it. Eventually it wasn't enough but nearly every AD I've taken threw me into mania and that one let me live a relatively normal life for a long time.

I was off it for a long time and then on it again for a while but when I was on it with mood stabilizers I had blood pressure issues on it. It and my MAOI are the only 2 ADs that ever worked without making me manic or requiring ridiculously tight dose control that eventually failed.