Open Label Study of Lithium Plus Extended-Release Carbamazepine (ERC-CBZ) for Rapid Cycling Bipolar Disorder

Preliminary phase subjects receive ERC-CBZ starting dose range from 100 to 200 mg b.i.d. and further titration up to a maximum dose of 1600 mg/day done at the discretion of the investigator. Titration phase will not extend beyond 2 weeks.Open label phase subjects stabilized on lithium and ERC-CBZ therapy will enter this phase for 6 months