I've been on Gabapentin as a mood stabilizer since 2000. I went on it after a concussion that left me crying all the time. I just don't seem to be able to get off it. I'm down to 900 mg now, but that is as low as I can go without sobbing over little things.

In the beginning, it makes you drowsy...so you increase it slowly. At one point, I was on 2700 mg a day.