Tried it a number of years ago with little effect. Of course I was self medication 24/7 with marajuana, so that may have had something to do with it.
Like Dee said, I'd suggest talking with your doctor about it and being honest with him about your drinking problem as well (if you haven't already). Many of the chemical drugs we take today have their basis in herbs, so that doesn't necessarily make the herbs any safer than the drugs.
As far as this particular one goes, it seems like you've done a bit of research on it, which is good. I guess I'd treat it like any mind/mood altering substance, with a great deal of care, as you know you already have issues in that department. Take care.