Divalproex sodium
"By chance I started taking Depakote around the time that my SAD normally kicks in and after a month it had stopped it dead in it's tracks; no depression and only very mild manic episodes. I'm also now experiencing a sense of inner calm and mental clarity than I ever thought possible. No side effects other than vivid dreams and some weight gain, which is par the course for me this time of year anyway and a small price to pay for the improvements I'm seeing."