Social anxiety disorder is marked, persistent fear of social or performance situations in which the patient anticipates being evaluated negatively. The DSM-5 criteria require fear out of proportion to actual threat, avoidance or distressed endurance, persistence for 6+ months, and significant impairment. Distinct from shyness in its functional impact and pervasiveness.
Prevalence is substantial — roughly 7-12% of adults meet criteria during their lifetime. Often emerges in early-to-mid adolescence (median age of onset around 13). Frequently undertreated because patients avoid the situations that would reveal impairment, and because the disorder is often confused with personality traits.
Two patterns: generalized (fear across most social situations) and performance-only (specific situations like public speaking, formal events). The distinction matters for treatment — performance-only often responds to beta-blocker pre-treatment, while generalized requires broader intervention.
Comorbidity is the rule: depression (50%+ lifetime), substance use (particularly alcohol — many patients self-medicate to tolerate social situations), other anxiety disorders, avoidant personality disorder. Educational and occupational underachievement common — the patient capable of substantially more than they accomplish due to social anxiety constraints.
First-line treatment: SSRIs or SNRIs (paroxetine, sertraline, venlafaxine all have specific FDA indications) plus CBT with cognitive restructuring and behavioral practice. SSRIs reduce baseline reactivity over 4-8 weeks; CBT addresses cognitive patterns (probability overestimation, cost overestimation of social judgment) and behavioral practice in feared situations.
For performance-only social anxiety: propranolol 20-40 mg PO 30-60 minutes before the performance situation. Blocks the peripheral autonomic symptoms (tremor, palpitations, sweating) that drive catastrophic interpretation. Bridge or short-term tool; CBT focused on cognitive restructuring is the durable solution.
Benzodiazepines: avoided when possible — interfere with the cognitive exposure work that produces lasting change, carry abuse potential, and may worsen long-term outcomes despite short-term symptom relief.
When you encounter social anxiety substantial enough to constrain employment, education, or relationships, the treatment is effective. Many patients describe their first SSRI course in adolescence or young adulthood as life-changing — finally able to attend college, participate in meetings, sustain relationships that anxiety had foreclosed.