Prednisone and Rifampicin: Drug Interaction Guide

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

How Prednisone interacts with Rifampicin

Rifampicin strongly induces CYP3A4, accelerating prednisone metabolism and reducing systemic glucocorticoid exposure by up to 60%.

What you should do

Increase prednisone dose by 50–100% during rifampicin therapy and monitor for clinical relapse of the underlying condition.

Key facts

Severity

Moderate — caution required

Mechanism

Rifampicin strongly induces CYP3A4, accelerating prednisone metabolism and reducing systemic glucocorticoid exposure by ...

Action

Increase prednisone dose by 50–100% during rifampicin therapy and monitor for clinical relapse of the underlying conditi...

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 Prednisone and Rifampicin together?

With caution. Increase prednisone dose by 50–100% during rifampicin therapy and monitor for clinical relapse of the underlying condition.

What is the severity of this interaction?

The interaction between Prednisone and Rifampicin is classified as Moderate — caution required. Rifampicin strongly induces CYP3A4, accelerating prednisone metabolism and reducing systemic glucocorticoid exposure by up to 60%.

What should I do if I'm prescribed both?

Increase prednisone dose by 50–100% during rifampicin therapy and monitor for clinical relapse of the underlying condition. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: May 16, 2026 by iMedic Medical Editorial Team. Our editorial process.