What the FDA labels say about taking them together
Amisulpride and ondansetron
Amisulpride's FDA label of June 17, 2026 names ondansetron in its drug interactions section; the ondansetron label PlainMeds reads does not name amisulpride. The amisulpride label: “ECG monitoring is recommended in patients taking other drugs known to prolong the QT interval (e.g., ondansetron).”
Check it at the source: the amisulpride FDA label on DailyMed (effective June 17, 2026, Acacia Pharma Ltd); the ondansetron FDA label on DailyMed (effective January 8, 2026, Glenmark Pharmaceuticals Inc., USA).
What does the amisulpride label say about ondansetron?
Amisulpride label, drug interactionsECG monitoring is recommended in patients taking other drugs known to prolong the QT interval (e.g., ondansetron) [see Warnings and Precautions (5.1) ].
Amisulpride label, warnings and precautionsECG monitoring is recommended in patients with pre-existing arrhythmias/cardiac conduction disorders; electrolyte abnormalities (e.g., hypokalemia or hypomagnesemia); congestive heart failure; and in patients taking other medicinal products (e.g., ondansetron) or with other medical conditions known to prolong the QT interval.
Source: FDA drug label (Barhemsys), NDA209510 (Lxo Ireland), as published by Acacia Pharma Ltd, effective June 17, 2026 (SPL set ab23bc6e-b6a8-165f-e053-2a95a90ab144), via openFDA; the full label on DailyMed
What does the ondansetron label say about amisulpride?
Ondansetron's label (effective January 8, 2026) does not name amisulpride in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Ondansetron), Glenmark Pharmaceuticals Inc., USA, effective January 8, 2026 (SPL set eee5217a-eba8-463a-812d-bf3c66f0934f), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Amisulpride | Ondansetron | |
|---|---|---|
| Labeled for | Nausea and vomiting | Nausea and vomiting |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | n/a | $0.0582 per tablet 4 mg tablet |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once