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BackgroundSeveral patients with unipolar depression present with prominent dysphoric mood. We aimed at examining the effectiveness of the combination of an SSRI with an anticonvulsant in such patients.MethodsThirty-five newly admitted outpatients with substantial anger, irritability, aggressiveness or hostility who were diagnosed a DSM-IV unipolar depressive disorder were rated on the Hamilton Depression Rating Scale (HDRS), the Clinical Global Improvement (CGI) scale, and a scale for the rapid dimensional assessment (SVARAD), were prescribed an SSRI and an anticonvulsant (usually valproate), and were followed up for 12 weeks. Repeated measures analysis of variance was used to test for within-subject changes in scale scores over time.ResultsThirty-two and 23 patients attended the follow-up visits 4 and 12 weeks later, respectively. Significant decreases (p < .001) were observed in HDRS total score, HDRS and SVARAD anxiety factors, HDRS and SVARAD core depression factors, and SVARAD anger/irritability factor. Adjusting for age or gender did not change the results. Most patients (82%) were rated as improved or much improved on the CGI.ConclusionAlthough our study has several limitations, we observed a remarkable improvement in most unipolar depressed outpatients with dysphoric mood treated with an SSRI and an anticonvulsant. The effectiveness of anticonvulsants might be linked to their action on symptoms of aggression and behavioural activation.

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