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Original Articles

The ɑ1-Adrenergic Antagonist Prazosin Ameliorates Combat Trauma Nightmares in Veterans With Posttraumatic Stress Disorder: A Report of 4 Cases

Murray A. Raskind, Dorcas J. Dobie, Evan D. Kanter, Eric C. Petrie, Charles E. Thompson, and Elaine R. Peskind

Published: July 31, 2000

Article Abstract

Background: Central nervous system (CNS) adrenergic hyperresponsiveness may be involved in the pathophysiology of posttraumatic stress disorder (PTSD). Two Vietnam combat veterans with PTSD prescribed the centrally active alpha1-adrenergic antagonist prazosin for symptoms of benign prostatic hypertrophy unexpectedly reported elimination of combat trauma nightmares. This observation prompted an open-label feasibility trial of prazosin for combat trauma nightmares in chronic combat-induced PTSD.

Method: Four consecutively identified combat veterans with chronic DSM-IV PTSD and severe intractable combat trauma nightmares participated in an 8-week open trial of escalating-dose prazosin. Nightmare severity response was rated using the nightmare item of the Clinician Administered PTSD Scale and the Clinical Global Impressions-Change scale.

Results: The 2 patients who achieved a daily prazosin dose of at least 5 mg were markedly improved, with complete elimination of trauma nightmares and resumption of normal dreaming. The 2 subjects limited to 2 mg of prazosin to avoid excessive blood pressure reduction were moderately improved with at least 50% reduction in nightmare severity.

Conclusion: These clinical observations, together with neurobiological evidence for alpha1-adrenergic regulation of CNS neurobiological systems relevant to PTSD, provide rationale for placebo-controlled trials of prazosin for PTSD combat trauma nightmares.

Volume: 61

Quick Links: PTSD , Trauma

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