While adverse reactions to ondansetron ODT are uncommon, some patients who take the drug may experience mild side effects, including:
- headache
- constipation
- weakness
- tiredness
- chills
- drowsiness
If any of the side effects above are severe or do not go away, you should contact your doctor.
Rare, more serious side effects may occur. If you experience any symptoms listed below, contact your doctor right away.
- blurred vision or vision loss
- Rash or hives
- swelling of the eyes, face, lips, tongue, throat, hands, feet, ankles, or lower legs
- difficulty breathing or swallowing
- chest pain
- seizures
Because ondansetron can cause drowsiness and dizziness, especially when you first start taking it, it is advised to avoid driving or operating machinery until you know how the drug may affect you.
This is not a complete list of ondansetron’s side effects. For more information on advice effects associated with ondansetron, please visit the National Institutes of Health’s DailyMed webpage.