What is it used for?
Ondansetron is used to prevent and treat nausea and vomiting, including nausea related to medical treatments or surgery.
How does it work?
It blocks serotonin signals that can trigger nausea and vomiting.
How to take/use it
Take it exactly as prescribed. Follow the instructions for the specific tablet or formulation, and do not take more than recommended.
Common side effects
Headache, constipation, diarrhoea, dizziness, and tiredness.
Precautions
Inform the doctor about heart rhythm problems, low potassium or magnesium levels, liver disease, or an allergy to ondansetron. It may rarely affect heart rhythm, especially with certain medicines or in people with risk factors. Seek medical advice for fainting, a fast or irregular heartbeat, or signs of a serious allergic reaction.