Haloperidol and Moxifloxacin: Drug Interaction Guide

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

Interaction severity: Major — avoid combination

How Haloperidol interacts with Moxifloxacin

Both haloperidol and moxifloxacin can prolong ventricular repolarization through effects on cardiac potassium currents. Additive QT prolongation increases the risk of torsades de pointes.

What you should do

Avoid the combination when possible. If unavoidable, correct electrolytes and obtain ECG monitoring.

Key facts

Severity

Major — avoid combination

Mechanism

Both haloperidol and moxifloxacin can prolong ventricular repolarization through effects on cardiac potassium currents. ...

Action

Avoid the combination when possible. If unavoidable, correct electrolytes and obtain ECG monitoring.

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 Haloperidol and Moxifloxacin together?

No — this combination should generally be avoided. Avoid the combination when possible. If unavoidable, correct electrolytes and obtain ECG monitoring.

What is the severity of this interaction?

The interaction between Haloperidol and Moxifloxacin is classified as Major — avoid combination. Both haloperidol and moxifloxacin can prolong ventricular repolarization through effects on cardiac potassium currents. Additive QT prolongation increases the risk of torsades de pointes.

What should I do if I'm prescribed both?

Avoid the combination when possible. If unavoidable, correct electrolytes and obtain 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.