Long-term outcome with divalproex in children and adolescents with bipolar disorder.

OBJECTIVE

To assess the outcome and safety of divalproex treatment in children and adolescents with bipolar disorder.

METHODS

We conducted a chart review of children and adolescents who were treated with divalproex and who met Diagnostic and Statistical Manual of Mental Disorders, fourth edition, criteria for bipolar disorder (dose 966 +/- 501 mg/day, level 79.4 +/- 23.1 micro g/mL, duration 1.4 +/- 1.5 years). Responders were defined as those showing moderate to marked response on the Clinical Global Impression-Improvement (CGI-I) scale.

RESULTS

Eight of 15 (53%) patients responded to divalproex treatment for mixed episode (n = 6), disruptive behavior (n = 4), pure mania (n = 3), or depression (n = 2). Six of 15 (40%) discontinued divalproex, most due to side effects (n = 5). The most common side effect was weight gain (4/15, 27%).

CONCLUSION

In children aged 4-18 years, divalproex treatment was related to improved outcome in the long-term treatment of bipolar disorder. One third of the patients discontinued treatment secondary to side effects, including a case of reversible liver enzyme elevation.