Da carbamazepingruppen blev udeladt i en post hoc- analyse, var risperidon kombineret med litium eller valproat bedre end litium eller valproat alene med hensyn til reduktion af samlet YMRS- score.
When the carbamazepine group was excluded in a post-hoc analysis, risperidone combined with lithium or valproate was superior to lithium or valproate alone in the reduction of YMRS total score.