Amiodarone and Fluoroquinolones: Drug Interaction Guide

Quick answer: This is a major interaction — avoid combining Amiodarone and Fluoroquinolones unless specifically directed by your doctor.

Interaction severity: Major — avoid combination

How Amiodarone interacts with Fluoroquinolones

Both agents can prolong cardiac repolarization through effects on potassium currents, increasing QT interval. Combined use raises the risk of torsades de pointes.

What you should do

Avoid when possible; if unavoidable, correct electrolytes, review other QT-prolonging drugs, and monitor ECG in high-risk patients.

Key facts

Severity

Major — avoid combination

Mechanism

Both agents can prolong cardiac repolarization through effects on potassium currents, increasing QT interval. Combined u...

Action

Avoid when possible; if unavoidable, correct electrolytes, review other QT-prolonging drugs, and monitor ECG in high-ris...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Amiodarone and Fluoroquinolones together?

No — this combination should generally be avoided. Avoid when possible; if unavoidable, correct electrolytes, review other QT-prolonging drugs, and monitor ECG in high-risk patients.

What is the severity of this interaction?

The interaction between Amiodarone and Fluoroquinolones is classified as Major — avoid combination. Both agents can prolong cardiac repolarization through effects on potassium currents, increasing QT interval. Combined use raises the risk of torsades de pointes.

What should I do if I'm prescribed both?

Avoid when possible; if unavoidable, correct electrolytes, review other QT-prolonging drugs, and monitor ECG in high-risk patients. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.