Revia is an opiate antagonist that works on certain parts of the brain to subside the craving for alcohol. Revia is used as a part of the complete de-addiction program and helps people dependent on alcohol to be independent of it. Revia also impacts the brain by eliminating the opiate effects. Revia also impacts by reducing the desire to take opiates. Revia helps to eliminate alcohol abuse by impacting the addict to drink less, or not drink at all. Also in some cases it prevents the people to return to their addiction.