An open trial of moclobemide in the treatment of post-traumatic stress disorder

Traditional monoamine oxidase inhibitors have shown efficacy in the treatment of post-traumatic stress disorder, but their use is limited by some serious drug and food interactions. Moclobemide, which is a reversible inhibitor of monoamine oxidase-A, is relatively free of these limitations and is therefore potentially useful in the treatment of post-traumatic stress disorder. Twenty patients who met Diagnostic and Statistical Manual of Mental Disorders, Third Edition Revised (DSM-III-R) criteria for post-traumatic stress disorder were entered into a 12-week open study with moclobemide. Assessments were completed every 4 weeks. Eleven participants no longer met DSM-III-R criteria for post-traumatic stress disorder by week 12. The severity of post-traumatic stress disorder reduced by 2.09 SD (95% confidence interval 1.49-2.69; p < 0.001) and functional impairment improved by 1.08 SD (95% confidence interval 0.46-1.69; p < 0.01). Adverse events were minimal. Controlled, double-blind studies should be considered to confirm these findings.