[Gabapentin in the treatment of mania].

We present the case of a 60-year old bipolar-I-patient showing a rapid antimanic response to gabapentin after having been non-responsive to lithium and perazine. This case encouraged us to further evaluate the antimanic potency of gabapentin in an open label trial. 20 patients with acute mania were treated for up to 21 days with gabapentin in a dose range from 1200 to 4800 mg/day. Ten patients were treated with gabapentin as add-on medication and ten patients were treated with a high dose of gabapentin alone. The BRMAS score declined significantly in patients with moderate mania, whereas gabapentin alone was not efficacious in patients with very severe mania. Keeping in mind the limitations of an open study, it can still be said that gabapentin as add-on medication with other effective mood stabilizers appears to be safe and efficacious in the treatment of moderate mania.