Drug interactions
Methylprednisolone + Warfarin
Severity: Moderate
Methylprednisolone and Warfarin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Corticosteroids can alter the anticoagulant response to warfarin, usually raising INR, and high doses add gastrointestinal bleeding risk. The effect is variable and unpredictable between patients.
What this interaction means in plain words
Methylprednisolone and Warfarin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Methylprednisolone belongs to Endocrine; Warfarin belongs to Cardiovascular.
Why it happens
The mechanism is not well established; effects on coagulation factors and gastric mucosal injury may contribute.
What to do
Check INR more often when starting, changing or stopping methylprednisolone and adjust the warfarin dose accordingly. Watch for signs of bleeding, especially GI bleeding.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Methylprednisolone
- Bcg vaccine live + Methylprednisolone Contraindicated
- Measles mumps and rubella vaccine live + Methylprednisolone Contraindicated
- Measles mumps rubella and varicella vaccine live + Methylprednisolone Contraindicated
- Measles vaccine + Methylprednisolone Contraindicated
- Methylprednisolone + Mifepristone Contraindicated
- Methylprednisolone + Rubella vaccine Contraindicated
Other interactions of Warfarin
- Defibrotide + Warfarin Contraindicated
- Ketorolac + Warfarin Contraindicated
- Abciximab + Warfarin Major
- Acetylsalicylic acid + Warfarin Major
- Adagrasib + Warfarin Major
- Amiodarone + Warfarin Major
Frequently asked questions
Can I take Methylprednisolone with Warfarin?
MediHelp rates the interaction as moderate. Methylprednisolone and Warfarin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Corticosteroids can alter the anticoagulant response to warfarin, usually raising INR, and high doses add gastrointestinal bleeding risk. The effect is variable and unpredictable between patients.
How serious is the interaction between Methylprednisolone and Warfarin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check INR more often when starting, changing or stopping methylprednisolone and adjust the warfarin dose accordingly. Watch for signs of bleeding, especially GI bleeding.
What other medicines interact with Methylprednisolone?
MediHelp also lists interactions of Methylprednisolone with, for example, Bcg vaccine live, Measles mumps and rubella vaccine live, Measles mumps rubella and varicella vaccine live. The full list is on the Methylprednisolone page.
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