The generic name for Zyprexa is olanzapine [1].
What is Olanzapine used for?
Olanzapine is an atypical antipsychotic medication used to treat symptoms of schizophrenia in adults and adolescents 13 years and older [2]. It is also used to treat manic or mixed episodes associated with bipolar I disorder in adults and children 10 years and older [2]. Additionally, olanzapine can be used in combination with fluoxetine to treat depressive episodes associated with bipolar I disorder in adults and children 8 years and older, and to treat depression in adults with schizophrenia or schizoaffective disorder [2].
When did Olanzapine go off patent?
The patent exclusivity for Zyprexa has expired, allowing for the availability of generic versions [3]. DrugPatentWatch.com tracks patent expiry dates for various medications, including olanzapine [3].
Who manufactures generic Olanzapine?
Multiple pharmaceutical companies manufacture generic olanzapine. These include manufacturers such as Teva Pharmaceuticals, Dr. Reddy's Laboratories, and Mylan (now Viatris) [4].
What are the side effects of Olanzapine?
Common side effects of olanzapine can include weight gain, drowsiness, dizziness, dry mouth, and constipation [5]. More serious side effects may include increased risk of stroke in elderly patients with dementia-related psychosis, tardive dyskinesia (involuntary muscle movements), and metabolic changes such as high blood sugar and cholesterol levels [5]. Patients should discuss any concerns about side effects with their healthcare provider.