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Effect of cyproheptadine on combat related PTSD nightmares


Recent studies have shown the role serotonergic system in post-traumatic stress disorder. Trazodone and Nefazodone (5H2 antagonist) amilorated PTSD nightmares but the receptors are mixed. This study promoted an open trial of cyporoheptadine for Iran versus Iraq combat related PTSD patients nightmares.

Materials and methods

25 patients studies in 8 week, before after trial of cyproheptadine, the participant were male and chronic PTSD patients with combat related nightmares.


5 patients were excluded from the study because of side effects including dizziness and somnolence. 20 patients completed the study. Average nightmare severity decreased from 6.85 to 5.05 which was statistically signifcant (p < 0.01).


Cyproheptadine may be effective in PTSD nightmare treatment.


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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ahmadzadeh, G., Asadolahi, G., Mahmodi, G. et al. Effect of cyproheptadine on combat related PTSD nightmares. Ann Gen Psychiatry 5 (Suppl 1), S159 (2006).

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