Suicidal Thoughts and Behaviors. Antidepressants increased the risk of suicidal thoughts and behaviors in patients aged 24 years and younger in short-term studies. Olanzapine is used to treat the symptoms of schizophrenia (a mental illness that causes disturbed or unusual thinking, loss of interest in life, and strong or inappropriate emotions) in adults and teenagers 13 years of age and older. Zyprexa Zydis is an antipsychotic medication that affects chemicals in the brain. Zyprexa Zydis 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. Quetiapine, sold under the trade name Seroquel among others, is an atypical antipsychotic used for the treatment of schizophrenia, bipolar disorder, and major depressive disorder. OLANZAPINE is used to treat schizophrenia, psychotic disorders, and bipolar disorder. Bipolar disorder is also known as manic-depression. The lowest GoodRx price for the most common version of olanzapine is around $4.50, 97% off the average retail price of $215.78. Uses. Olanzapine is used to treat certain mental/mood conditions (such as schizophrenia, bipolar disorder). It may also be used in combination with other medication to treat depression. Zyprexa and its generic, olanzapine, are available in a tablet (2.5 milligrams (mg), 5 mg, 7.5 mg, 10 mg, 15 mg and 20 mg) and a disintegrating tablet (5 mg, 10 mg, 15 mg, 20 mg) that dissolves in. Pheniramine (trade name Avil among others) is an antihistamine with anticholinergic properties used to treat allergic conditions such as hay fever or urticaria. Olanzapine is an antipsychotic medication that affects chemicals in the brain. Olanzapine 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. A sad and troubling case to be sure. What seems less obvious is the role of a withdrawal syndrome in Sally’s symptoms. While exact dates are not given, apparently about 2 months elapse between the complete termination of olanzapine administration and the onset of symptoms.