Related Experiment Video
Updated: Oct 10, 2025

08:47
Microdialysis of Excitatory Amino Acids During EEG Recordings in Freely Moving Rats
Published on: November 8, 2018
11.6K
Lorazepam challenge test: A unique clinical response in catatonia
Aparna Seetharaman1, Vinay Singh Chauhan1, Arka Adhvaryu1
1Department of Psychiatry, Armed Forces Medical College, Pune, Maharashtra, India.
Industrial Psychiatry Journal
|December 15, 2021
Summary
Catatonia, a serious syndrome of bizarre motor behavior, requires prompt medical attention. The intravenous lorazepam challenge test effectively and rapidly treated three patients with catatonia.
Area of Science:
- Psychiatry
- Neurology
Background:
- Catatonia is a complex psychomotor syndrome with potential for fatal outcomes if misdiagnosed.
- Early recognition and intervention are critical for managing catatonia.
Observation:
- A case series involving three patients diagnosed with catatonia was reviewed.
- All patients presented with characteristic symptoms of catatonia.
Findings:
- Intravenous administration of lorazepam (4 mg), known as the Lorazepam Challenge, was employed.
- The Lorazepam Challenge resulted in rapid and optimal symptom resolution in all three cases.
Implications:
- The Lorazepam Challenge is a valuable diagnostic and therapeutic tool for catatonia.
- This approach highlights the efficacy of benzodiazepines in managing catatonic symptoms.
- Prompt administration of lorazepam can avert potentially fatal outcomes associated with untreated catatonia.

