Prednisolone and Warfarin: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Prednisolone interacts with Warfarin

Corticosteroids potentiate warfarin's anticoagulant effect through unclear mechanisms thought to involve altered clotting factor synthesis and impaired hemostasis from gastric irritation.

What you should do

Check INR within 3-5 days of starting or stopping corticosteroid; adjust warfarin dose accordingly and consider gastroprotection.

Key facts

Severity

Moderate — caution required

Mechanism

Corticosteroids potentiate warfarin's anticoagulant effect through unclear mechanisms thought to involve altered clottin...

Action

Check INR within 3-5 days of starting or stopping corticosteroid; adjust warfarin dose accordingly and consider gastropr...

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 Warfarin together?

With caution. Check INR within 3-5 days of starting or stopping corticosteroid; adjust warfarin dose accordingly and consider gastroprotection.

What is the severity of this interaction?

The interaction between Prednisolone and Warfarin is classified as Moderate — caution required. Corticosteroids potentiate warfarin's anticoagulant effect through unclear mechanisms thought to involve altered clotting factor synthesis and impaired hemostasis from gastric irritation.

What should I do if I'm prescribed both?

Check INR within 3-5 days of starting or stopping corticosteroid; adjust warfarin dose accordingly and consider gastroprotection. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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