iMedic.health

Azole Antifungal and Tacrolimus: Drug Interaction Guide

Quick answer: This is a major interaction — avoid combining Azole Antifungal and Tacrolimus unless specifically directed by your doctor.

Interaction severity: Major — avoid combination

How Azole Antifungal interacts with Tacrolimus

Azole antifungals (fluconazole, voriconazole, itraconazole) potently inhibit CYP3A4 and P-glycoprotein, dramatically increasing tacrolimus levels and risk of nephrotoxicity and neurotoxicity.

What you should do

Reduce tacrolimus dose by 50-66% at initiation, monitor trough levels every 2-3 days, and adjust based on therapeutic drug monitoring.

Key facts

Severity

Major — avoid combination

Mechanism

Azole antifungals (fluconazole, voriconazole, itraconazole) potently inhibit CYP3A4 and P-glycoprotein, dramatically inc...

Action

Reduce tacrolimus dose by 50-66% at initiation, monitor trough levels every 2-3 days, and adjust based on therapeutic dr...

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 Azole Antifungal and Tacrolimus together?

No — this combination should generally be avoided. Reduce tacrolimus dose by 50-66% at initiation, monitor trough levels every 2-3 days, and adjust based on therapeutic drug monitoring.

What is the severity of this interaction?

The interaction between Azole Antifungal and Tacrolimus is classified as Major — avoid combination. Azole antifungals (fluconazole, voriconazole, itraconazole) potently inhibit CYP3A4 and P-glycoprotein, dramatically increasing tacrolimus levels and risk of nephrotoxicity and neurotoxicity.

What should I do if I'm prescribed both?

Reduce tacrolimus dose by 50-66% at initiation, monitor trough levels every 2-3 days, and adjust based on therapeutic drug 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.