Answer
Blocking 5-HT3 receptors can slow large-bowel transit. Existing severe constipation, abdominal swelling or possible obstruction needs clinical review.
Sources for this answer
- Ondansetron 2 mg/ml solution for injection/infusion — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.