Abstract
Social anxiety disorder—an excessive fear of social situations, such as eating or speaking in public—affects 2 to 13 percent of the U.S. population. About one-fifth of patients with social anxiety disorder also suffer from an alcohol use disorder (AUD) (i.e., alcohol abuse or dependence). One theory to explain the comorbidity between social anxiety disorder and AUDs is the tension reduction theory, which posits that people with social anxiety use alcohol to alleviate their fears. This expectation that alcohol reduces anxiety may motivate alcohol consumption even if pharmacological studies do not support that assumption. Social anxiety disorder is treatable with both pharmacotherapy and psychotherapy, and some of those treatments also would be expected to be effective for patients with comorbid AUDs. Evaluation of patients seeking alcoholism treatment for coexisting social anxiety disorder is important for improving treatment outcome.