Carbamazepine and Fluvoxamine: Drug Interaction Guide

Quick answer: This combination requires caution. Carbamazepine and Fluvoxamine can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Carbamazepine interacts with Fluvoxamine

Fluvoxamine inhibits CYP3A4 and CYP1A2, decreasing carbamazepine clearance and raising plasma levels with risk of dizziness, diplopia and ataxia.

What you should do

Monitor carbamazepine levels within 1-2 weeks of initiation and reduce carbamazepine dose if symptoms of neurotoxicity appear.

Key facts

Severity

Moderate — caution required

Mechanism

Fluvoxamine inhibits CYP3A4 and CYP1A2, decreasing carbamazepine clearance and raising plasma levels with risk of dizzin...

Action

Monitor carbamazepine levels within 1-2 weeks of initiation and reduce carbamazepine dose if symptoms of neurotoxicity a...

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 Carbamazepine and Fluvoxamine together?

With caution. Monitor carbamazepine levels within 1-2 weeks of initiation and reduce carbamazepine dose if symptoms of neurotoxicity appear.

What is the severity of this interaction?

The interaction between Carbamazepine and Fluvoxamine is classified as Moderate — caution required. Fluvoxamine inhibits CYP3A4 and CYP1A2, decreasing carbamazepine clearance and raising plasma levels with risk of dizziness, diplopia and ataxia.

What should I do if I'm prescribed both?

Monitor carbamazepine levels within 1-2 weeks of initiation and reduce carbamazepine dose if symptoms of neurotoxicity appear. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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