Abilify Therapy for Reducing Comorbid Substance Abuse

It is hypothesized that the use of aripiprazole (Abilify) in patients with alcohol and/or drug dependence with comorbid psychiatric conditions will lead to: * Reduction in the amount of alcohol and/or drugs used as measured by the Time Line Follow Back (TLFB) and the Addiction Severity Index (ASI) * Reduction in cravings for alcohol and drugs as measured by the Penn Alcohol Craving Scale * Reduction in symptoms of co-morbid psychiatric disorders compared to before starting aripiprazole.