Is Magnesium Safe with Amiodarone?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Consult your cardiologist before taking magnesium supplements. IV magnesium used in hospital settings actually helps treat amiodarone-associated torsades, but routine supplementation should be medically guided. Report palpitations or fainting.
Why this interaction occurs
Both amiodarone and magnesium influence cardiac conduction. While magnesium is sometimes therapeutically used to counteract arrhythmias, unsupervised supplementation can unpredictably affect QT interval and cardiac conduction in patients already on amiodarone. Electrolyte balance must be carefully maintained.
Evidence
Evidence level: moderate.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 65,378 reports mentioning Amiodarone. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Amiodarone + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Magnesium interactions → · All Amiodarone interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.