I know this is a late reply but I also have a serious problem with irritability. Like another poster said, the Klonopin I take seems to be the only thing that helps that. I take 2mg in the morning and 2mg at night. AP's help too obviously, but I have the same problem you do. They either make me gain a massive amount of weight or cause me horrible akathisia or other side effects that I can't handle(I had an acute dystonic reaction to haldol, UGH).