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Flumazenil Use in Benzodiazepine-Induced Delirium Reversal
Riya Bhattacharya1, Arihant Surana1, Arunava Saha2
1Department of Medicine, Saint Vincent Hospital, Worcester, MA.
Rhode Island Medical Journal (2013)
|July 28, 2026
Summary
Hypoactive delirium in critically ill patients is often missed and linked to poor outcomes. This case study suggests flumazenil may rapidly reverse benzodiazepine-induced delirium, offering a potential new treatment strategy.
Area of Science:
- Critical Care Medicine
- Neuroscience
- Pharmacology
Background:
- Delirium is a common, serious complication in critically ill patients, increasing mortality and cognitive impairment.
- Hypoactive delirium is underrecognized (up to 75% of cases) and associated with worse outcomes.
- Benzodiazepines (BZDs), used for ICU sedation, can cause or worsen delirium, especially with renal/hepatic dysfunction.
Purpose of the Study:
- To investigate the potential of flumazenil in reversing benzodiazepine-induced delirium in a critically ill patient.
- To highlight the significance of identifying BZD-induced delirium in the ICU setting.
Main Methods:
- Case report of a critically ill patient with persistent hypoactive delirium after benzodiazepine exposure.
- Administration of flumazenil, a benzodiazepine receptor antagonist.
Main Results:
- Flumazenil administration resulted in rapid neurological recovery in the patient.
- The patient's delirium symptoms significantly improved post-treatment.
Conclusions:
- Benzodiazepine-induced delirium should be considered in critically ill patients presenting with delirium.
- Flumazenil shows promise as a therapeutic option for reversing BZD-related delirium, warranting further research.
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