Amiodarone and Ondansetron: Drug Interaction Guide
Quick answer: This is a major interaction — avoid combining Amiodarone and Ondansetron unless specifically directed by your doctor.
How Amiodarone interacts with Ondansetron
Both drugs inhibit cardiac potassium currents and prolong the QT interval, increasing the risk of torsades de pointes and other ventricular arrhythmias.
What you should do
Avoid concurrent use when possible. If unavoidable, correct electrolyte abnormalities and use ECG monitoring.
Key facts
Severity
Major — avoid combination
Mechanism
Both drugs inhibit cardiac potassium currents and prolong the QT interval, increasing the risk of torsades de pointes an...
Action
Avoid concurrent use when possible. If unavoidable, correct electrolyte abnormalities and use ECG monitoring.
Frequently asked questions
Can I take Amiodarone and Ondansetron together?
No — this combination should generally be avoided. Avoid concurrent use when possible. If unavoidable, correct electrolyte abnormalities and use ECG monitoring.
What is the severity of this interaction?
The interaction between Amiodarone and Ondansetron is classified as Major — avoid combination. Both drugs inhibit cardiac potassium currents and prolong the QT interval, increasing the risk of torsades de pointes and other ventricular arrhythmias.
What should I do if I'm prescribed both?
Avoid concurrent use when possible. If unavoidable, correct electrolyte abnormalities and use ECG monitoring. Always consult your prescribing clinician — do not stop or change medications without medical guidance.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.