Psychiatric Comorbidities and Complications of Alcohol, Other Drugs: An Introduction, and International Perspectives: An Introduction and International Perspectives: An Introduction

The co-occurrence of substance use disorders (SUDs) with other psychiatric disorders has been an area of increasing focus over the past 30 years. This intense focus has increased the knowledge base with regard to the prevalence of co-occurring disorders, the neurobiological interface between substance use and other psychiatric disorders, and pharmacologic and psychotherapeutic treatment options. In addition, a critical focus on workforce training and designing systems of care that can optimally address the treatment needs of individuals with co-occurring disorders is needed. In these efforts, sharing knowledge across cultural and national boundaries is essential.