Zyprexa (olanzapine) is an antipsychotic medication that affects chemicals in the brain.
Zyprexa is used to treat psychotic conditions such as schizophrenia and bipolar disorder (manic depression) in adults and children at least 13 years old.
Zyprexa is also used together with fluoxetine (Prozac) to treat episodes of depression in adults and children at least 10 years old who have bipolar I disorder.
