Olanzapine: The Antipsychotic for Schizophrenia and Bipolar Disorder
What is Olanzapine?
Olanzapine is an atypical antipsychotic used to treat schizophrenia, bipolar disorder, and as an adjunct in the treatment of depression. Olanzapine helps manage symptoms like delusions, hallucinations, and mood swings.
How Olanzapine Works
Olanzapine works by altering the activity of dopamine and serotonin receptors in the brain. By blocking these receptors, Olanzapine reduces psychotic symptoms and helps stabilize mood in patients with bipolar disorder.
When to Use Olanzapine
● Schizophrenia: Olanzapine is used to treat both acute and chronic schizophrenia, helping manage symptoms such as delusions, hallucinations, and disorganized thinking.
● Bipolar Disorder: It is used for managing manic and mixed episodes in bipolar disorder.
● Adjunctive Therapy: Olanzapine can be used alongside antidepressants to treat major depressive disorder (MDD) when other medications are ineffective.
Dosage
● Adult Dose for Schizophrenia: Typically, 5 mg to 10 mg once daily, with possible increases to 20 mg per day depending on response.
● Adult Dose for Bipolar Disorder: 10 mg to 15 mg once daily for acute mania. Recommended maximum dose is 20 mg/day.
● Pediatric dosage: The starting dose for bipolar disorder in children ranges between 1.25 mg to 2.5 mg. Dose is increased based on response and weight. It is also used in cases of tourette syndrome, schizophrenia and agitation.
Side Effects
● Common Effects: Weight gain, drowsiness, dry mouth, and dizziness.
● Serious Adverse Effects: Metabolic syndrome, diabetes, cardiovascular issues, and extrapyramidal symptoms(movement disorders).
Common brands: Oleanz, Oliza