Fluconazole and Quetiapine: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Fluconazole interacts with Quetiapine

Fluconazole inhibits CYP3A4, the main metabolic pathway for quetiapine, increasing quetiapine exposure. Additive QT prolongation and sedation may occur.

What you should do

Consider a lower quetiapine dose and monitor for sedation, hypotension, and QT risk factors. Use an alternative antifungal when risk is high.

Key facts

Severity

Moderate — caution required

Mechanism

Fluconazole inhibits CYP3A4, the main metabolic pathway for quetiapine, increasing quetiapine exposure. Additive QT prol...

Action

Consider a lower quetiapine dose and monitor for sedation, hypotension, and QT risk factors. Use an alternative antifung...

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 Fluconazole and Quetiapine together?

With caution. Consider a lower quetiapine dose and monitor for sedation, hypotension, and QT risk factors. Use an alternative antifungal when risk is high.

What is the severity of this interaction?

The interaction between Fluconazole and Quetiapine is classified as Moderate — caution required. Fluconazole inhibits CYP3A4, the main metabolic pathway for quetiapine, increasing quetiapine exposure. Additive QT prolongation and sedation may occur.

What should I do if I'm prescribed both?

Consider a lower quetiapine dose and monitor for sedation, hypotension, and QT risk factors. Use an alternative antifungal when risk is high. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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