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Effectiveness of benzodiazepines: do they work or not?
1P056, Institute of Psychiatry, King's College, London, Denmark Hill, London, SE5 8AF, UK. m.lader@iop.kcl.ac.uk
Expert Review of Neurotherapeutics
|August 2, 2008
Summary
Benzodiazepines show higher efficacy than placebo but lack short-term effectiveness. Long-term use leads to more adverse effects, despite available alternatives, suggesting continued overprescribing of these drugs.
Area of Science:
- Pharmacology
- Clinical Medicine
- Psychiatry
Background:
- Benzodiazepines have been widely prescribed for anxiety, sleeplessness, and muscle tension for decades.
- Despite known adverse effects like sedation, cognitive impairment, and dependence, their use persists.
- Better therapeutic alternatives have emerged, yet benzodiazepine prescriptions remain high.
Discussion:
- The review examines limited high-quality data on benzodiazepine efficacy, effectiveness, and adverse event-related dropouts.
- Reasons for continued prescribing include evolving diagnostic criteria and lack of standardized effectiveness assessment methods.
- The paper discusses the sparse evidence for short-term effectiveness and increased adverse effects.
Key Insights:
- Benzodiazepine efficacy was significantly higher compared to placebo.
- No convincing evidence supported short-term effectiveness in clinical practice.
- Adverse effects were 1.5 times more frequent in patients treated with benzodiazepines.
Outlook:
- Continued excessive prescribing of benzodiazepines is anticipated.
- The need for better assessment methods for drug effectiveness in clinical practice is highlighted.
- Further research into safer and more effective alternatives is warranted.
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