Prednisolone and Ritonavir: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Prednisolone interacts with Ritonavir

Ritonavir strongly inhibits CYP3A4, reducing metabolism of systemic and some locally administered corticosteroids. Corticosteroid exposure can increase, causing adrenal suppression or Cushingoid effects.

What you should do

Use the lowest effective corticosteroid dose and monitor for steroid toxicity. Consider alternatives less dependent on CYP3A4 and involve specialist advice for prolonged therapy.

Key facts

Severity

Moderate — caution required

Mechanism

Ritonavir strongly inhibits CYP3A4, reducing metabolism of systemic and some locally administered corticosteroids. Corti...

Action

Use the lowest effective corticosteroid dose and monitor for steroid toxicity. Consider alternatives less dependent on C...

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 Prednisolone and Ritonavir together?

With caution. Use the lowest effective corticosteroid dose and monitor for steroid toxicity. Consider alternatives less dependent on CYP3A4 and involve specialist advice for prolonged therapy.

What is the severity of this interaction?

The interaction between Prednisolone and Ritonavir is classified as Moderate — caution required. Ritonavir strongly inhibits CYP3A4, reducing metabolism of systemic and some locally administered corticosteroids. Corticosteroid exposure can increase, causing adrenal suppression or Cushingoid effects.

What should I do if I'm prescribed both?

Use the lowest effective corticosteroid dose and monitor for steroid toxicity. Consider alternatives less dependent on CYP3A4 and involve 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.