Is Ondansetron Safe During Pregnancy?
Ondansetron is commonly used for severe morning sickness when other treatments fail.
Last reviewed: April 2026
Safety Summary
Ondansetron is commonly used for severe morning sickness when other treatments fail.
Category B — Likely Safe
Animal studies show no risk, but limited human data available.
Trimester-by-Trimester Guide
1st Trimester (Weeks 1–12)
Use only if severe nausea. Some concerns about first trimester use — discuss with doctor.
2nd Trimester (Weeks 13–26)
Considered safer. Used for hyperemesis.
3rd Trimester (Weeks 27–40)
Safe when needed.
Brands Available in India
Safer Alternatives During Pregnancy
Your doctor may suggest one of these alternatives. Always confirm with your obstetrician.
Frequently Asked Questions
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Ask GoDavaii AIMedical Disclaimer: Pregnancy safety information is based on available clinical data and FDA classifications. This page is for educational purposes only and does not substitute professional medical advice. Every pregnancy is different — consult your doctor or gynaecologist before taking any medicine. Drug safety classifications may have been updated; always verify current guidelines.