Zyprexa (olanzapine) is an antipsychotic medication that affects chemicals in the brain. Zyprexa is used to treat the symptoms of psychotic conditions such as schizophrenia and bipolar disorder (manic depression) in adults and children who are at least 13 years old.
Zyprexa is sometimes used together with other antipsychotic medications or antidepressants. Zyprexa may also be used for purposes not listed in this medication guide.