Prednisone and Ritonavir: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Prednisone interacts with Ritonavir

Ritonavir strongly inhibits CYP3A4, reducing metabolism of systemic corticosteroids such as prednisone and prednisolone. This can increase glucocorticoid exposure and adrenal suppression risk.

What you should do

Use the lowest effective corticosteroid dose and monitor for Cushingoid features and adrenal suppression. Consider alternatives and specialist advice for prolonged therapy.

Key facts

Severity

Moderate — caution required

Mechanism

Ritonavir strongly inhibits CYP3A4, reducing metabolism of systemic corticosteroids such as prednisone and prednisolone....

Action

Use the lowest effective corticosteroid dose and monitor for Cushingoid features and adrenal suppression. Consider alter...

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 Ritonavir together?

With caution. Use the lowest effective corticosteroid dose and monitor for Cushingoid features and adrenal suppression. Consider alternatives and specialist advice for prolonged therapy.

What is the severity of this interaction?

The interaction between Prednisone and Ritonavir is classified as Moderate — caution required. Ritonavir strongly inhibits CYP3A4, reducing metabolism of systemic corticosteroids such as prednisone and prednisolone. This can increase glucocorticoid exposure and adrenal suppression risk.

What should I do if I'm prescribed both?

Use the lowest effective corticosteroid dose and monitor for Cushingoid features and adrenal suppression. Consider alternatives and specialist advice for prolonged therapy. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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