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Ondansetron

Ondansetron blocks the actions of chemicals in the body that can trigger nausea and vomiting.

Dosage by Body Weight

Often used off-label for acute gastroenteritis in children to prevent dehydration. Dosing is typically 0.15 mg/kg.

  1. Body Weight
    8-15 kg
    Dose
    2 mg
    Frequency
    Every 8 hours as needed
    Tracking Notes
    ODT (melt-in-mouth) is useful if the child is vomiting.
  2. Body Weight
    15-30 kg
    Dose
    4 mg
    Frequency
    Every 8 hours as needed
    Tracking Notes
    Do not exceed prescribed frequency.

Formulation

TabletOrally Disintegrating Tablet (ODT)SyrupInjection

Purpose

Used to prevent nausea and vomiting, especially that caused by chemotherapy, radiation, or surgery.

Generic Name

Ondansetron Hydrochloride

Branded Drug Names

Ondansetron is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

  • Zofran
  • Emset
  • Ondem

Scheduled Drug

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

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.