I think during the 70s LSD was being used to rehab alcoholics, it's a shame such practices and psychedelics in general are all illegal now.. but ignoring the law, from what I've read and personal experience, LSD works well too.
LOS ANGELES — For the first time in more than four decades, the drug lysergic acid diethylamide – better known as LSD – has been the experimental adjunct to psychotherapy in a controlled clinical trial approved by the U.S. Food and Drug Administration.[1]