Cited by 125Anxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesTreatment of Major DepressionMental Health Treatment and Access

Comparing the efficacy of benzodiazepines and serotonergic anti-depressants for adults with generalized anxiety disorder: A meta-analytic review

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Gomez, Angelina F., Barthel, Abigail L., Hofmann, Stefan G.·2018·Expert Opinion on Pharmacotherapy

Abstract

INTRODUCTION: Generalized anxiety disorder (GAD) is a common form of anxiety disorder. Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), and benzodiazepines (BZs) are the most commonly prescribed medications for GAD, but little is known about the relative efficacy of these pharmacological treatments. Areas covered: This study provides a meta-analytic review of the efficacy of these medications in the treatment of adults with GAD. A comprehensive literature search yielded 54 articles reporting 56 unique studies with 12,655 participants treated with either pill placebo (6,191 participants), SSRIs (16 trials, 2,712 participants), SNRIs (17 trials, 2,603 participants), or BZs (23 trials, 1,149 participants). The overall combined effect size was modest to moderate (Hedges' g = 0.37, p < 0.0001). Effect sizes decreased significantly over time. SSRIs (Hedges' g = 0.33) and SNRIs (Hedges' g = 0.36) demonstrated significantly lower effect sizes than BZs (Hedges' g = 0.50). These findings were not due to differences in treatment length or publication year. Expert opinion: The results of this study suggest that the most common forms of pharmacotherapy for adult GAD are moderately effective, with BZs being the most effective drug.

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  1. [13]Stewart SA. The effects of benzodiazepines on cognition. J. Clin. Psychiatry 2005; 66 Suppl 2: 9– 13 15762814 *A comprehensive review of the risk of cognitive impairments associated with long-term benzodiazepine use.
  2. [38]Higgins JPT, Green S, eds. Cochrane Handbook for Systematic Reviews of Interventions. 5th ed.: The Cochrane Collaboration, 2011 **This Handbook is an invaluable tool for any author conducting a literature review or meta-analysis.
  3. [74]Hidalgo RB, Tupler LA, Davidson JRT. An effect-size analysis of pharmacologic treatments for generalized anxiety disorder. J Psychopharmacol (Oxford) 2007; 21: 864– 72 17984162

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Authors
Gomez, A. F., Barthel, A. L., & Hofmann, S. G.
Affiliations
  • Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA
  • Boston University (US)
Corresponding author
Hofmann, Stefan G.
Venue
Expert Opinion on Pharmacotherapy
Published
2018-05-24
Volume
19
Issue
8
Pages
883-894
ISSN
  • 1465-6566 (ISSN-L)
  • 1744-7666
OpenAlex
W2804266260
Cited by
125
References
102
Citations by year
2026: 6 · 2025: 14 · 2024: 32 · 2023: 18 · 2022: 11 · 2021: 16 · 2020: 17 · 2019: 9 · 2018: 2
FWCI
1.75
Type
journal article
Language
en
Open access
Locations
  • Expert Opinion on Pharmacotherapy (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (R34MH099311)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
Keywords
generalized anxiety disorder, benzodiazepines, selective serotonin reuptake inhibitors, serotonin-norepinephrine reuptake inhibitors, pharmacotherapy efficacy, antidepressant comparison, placebo response, adults
MeSH terms
Serotonin and Noradrenaline Reuptake Inhibitors, Anxiety Disorders, Benzodiazepines, Humans, Anti-Anxiety Agents, Databases, Factual, Treatment Outcome, Selective Serotonin Reuptake Inhibitors

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