There are already some breakthroughs on that but they aren’t that well publicized. I was in the clinical trials to get Campral (acamprosate calcium) approved for use in the U.S. It has been used in Europe for a lot longer. It isn’t what most people think of as a drug, it is a version of calcium closer to what most people would think of as a prescribed vitamin but the results can be profound and work when nothing else does. I can attest personally that it works quite well for some people. The only drawback that I know is that it can be expensive depending on your health insurance plan.
http://alcoholism.about.com/od/meds/a/campral.htm
There is also Naltrexone which is an opiate receptor blocker. As I mentioned before, alcohol isn’t an opiate itself but it interacts with opiate receptors in ways that aren’t well understood. The opiate pathways are involved in a reward feedback loop and one good theory is that alcoholics have pathways that go haywire when they are exposed to alcohol causing a feedback loop that requires additional drinking to keep them stimulated like they demand.
http://www.webmd.com/mental-health/addiction/understanding-alcohol-abuse-treatment
The only other common drug for alcohol treatment prior to that was Anatabuse that induces an allergic reaction to alcohol in anyone taking it. It isn’t widely prescribed anymore because it doesn’t fix the core problem at all. Alcoholics either stop taking it because they hate it, they drink anyway and then get really sick or they get exposed to alcohol through casual contact (some shampoos and cosmetics for example) and develop a bad reaction through no fault of their own. That strategy just doesn’t work either ethically or psychologically.
Campral and Naltrexone are not perfect but they are a huge improvement even though relatively few alcoholics are even told they are an option (many doctors don’t know much about them either although even family doctors can prescribe them). If you read the cites, there is almost always a reduction in drinking among those that take them and the one year sobriety success rate is over 50% for those that take them and also undergo some type of social therapy. That blows the doors off of anything else out there right now. If you have a friend, family member or are an alcoholic yourself, it is worth talking to a doctor about the fit for these drugs that were rather recently approved to treat the actual cause of alcoholism rather than just try to chase the symptoms or beat certain behaviors over the head.