Oleanz (Generic Olanzapine Tablets) is used for the treatment of schizophrenia. This medicine may also be used alone or with other medicines (eg, lithium or valproate) for the acute treatment of manic or mixed episodes associated with bipolar I disorder and maintenance treatment of bipolar I disorder. Olanzapine may also be used together with Fluoxetine to treat depression that is a part of bipolar disorder, and depression in patients who received other antidepressants that did not work well.