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Am J Phys Med Rehabil. 2004 Jun;83(6):421-7.

Comparison of lorazepam and zopiclone for insomnia in patients with stroke and brain injury: a randomized, crossover, double-blinded trial.

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Department of Physical Medicine and Rehabilitation, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.



To determine if lorazepam or zopiclone is more effective in providing a restful night of sleep and to assess the effects of these medications on cognition.


A randomized, double-blinded, crossover trial was performed at a tertiary care rehabilitation inpatient unit in a teaching hospital. A total of 18 brain-injured and stroke patients, aged 20-78 yrs, were administered lorazepam, 0.5-1.0 mg, orally at bedtime as needed for 7 days and zopiclone, 3.75-7.5 mg, orally at bedtime as needed for 7 days. Total sleep time and characteristics of sleep were measured. Effects on cognition were also measured using the Folstein Mini Mental Status Exam.


There was no difference in average sleep duration or in subjective measures of sleep. Cognition as assessed by the Mini Mental Status Exam revealed no difference in the zopiclone arm compared with the lorazepam arm.


Zopiclone is equally effective as lorazepam in the treatment of insomnia in stroke and brain-injured patients.

[Indexed for MEDLINE]

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