Zyprexa

Zyprexa (olanzapine) is an atypical antipsychotic medication that works by affecting certain natural chemicals (neurotransmitters) in the brain, such as dopamine and serotonin, to help manage symptoms of psychotic conditions and mood disorders.

Dosage by Body Weight

The standard starting oral dose for adults is 5 mg to 10 mg once daily, with a target dose of 10 mg/day. Dose adjustments should occur at intervals of not less than 24 hours. For adolescents (ages 13-17), the starting dose is 2.5 mg to 5 mg once daily. Not indicated or safety-established for pediatric patients under the age of 13.

  1. Body Weight
    Below 5 kg
    Dose
    Not indicated
    Frequency
    Do not use
    Tracking Notes
    Safety and effectiveness have not been established in pediatric patients.
  2. Body Weight
    5-7 kg
    Dose
    Not indicated
    Frequency
    Do not use
    Tracking Notes
    Safety and effectiveness have not been established in pediatric patients.
  3. Body Weight
    8-10 kg
    Dose
    Not indicated
    Frequency
    Do not use
    Tracking Notes
    Safety and effectiveness have not been established in pediatric patients.
  4. Body Weight
    11-15 kg
    Dose
    Not indicated
    Frequency
    Do not use
    Tracking Notes
    Safety and effectiveness have not been established in pediatric patients.
  5. Body Weight
    16-20 kg
    Dose
    Not indicated
    Frequency
    Do not use
    Tracking Notes
    Safety and effectiveness have not been established in pediatric patients.

Formulation

TabletOrally Disintegrating TabletIntramuscular Injection

Purpose

Treatment of schizophrenia, acute manic or mixed episodes associated with bipolar I disorder, and maintenance treatment of bipolar I disorder. It is also used in combination with fluoxetine for treatment-resistant depression.

Generic Name

Olanzapine

Scheduled Drug

No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.