Possible Synergistic Action Between Carbamazepine and Lithium Carbonate in the Treatment of a Manic Patient.

Introduction Carbamazepine has been proven to be efficacious in some patients with affective disorders, notably those who have not responded well to lithium carbonate or neuroleptics (1,2,3) . For those who have responded poorly to either regimen, however, there have been no effective pharmacotherapies until recently, when case reports have suggested a possible synergistic action between lithium carbonate and carbamazepine (4,5,6). The following case report supports this hypothesis.