In recent times, several studies have been conducted regarding the legitimacy of using cannabis as a treatment for alcohol dependence/withdrawals. What research has shown is that in most cases, the administration of cannabis to the CB1 brain receptor does, in fact, help with both acute alcohol withdrawal and alcohol dependence, even after the withdrawals.
This is to say that if you ingest marijuana, the receptor in your brain which is activated by the compounds will trigger, and help you with your alcohol dependence - if that is an issue for you.
It's a known fact that if a person quits drinking cold-turkey after years of abuse, there is the definite possibility for lethal withdrawals to occur. Research conducted by INSERM, a medical research team located in France, as well as that conducted by Complutense University (Madrid) and CAD (Cannabis for Alcohol Dependence), has shown that the use of cannabis during alcohol withdrawal will actually protect the neurons in the brain from the death of cells typically experienced during these withdrawals. This cell death is what ultimately leads to the death of the alcoholic.
Additionally, and quite possibly most amazing of all, is that administration of CBD can actually reverse and help prevent against alcohol poisoning. Now, I'm not saying to go drink a handle of liquor and then think you'll be okay if you smoke a few high CBD joints. You might, but better not to test it.