Drug interactions
Deflazacort + Mefenamic acid
Severity: Moderate
Deflazacort and Mefenamic acid: 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 combined with NSAIDs increase the risk of peptic ulceration and gastrointestinal bleeding. The risk rises with higher doses and longer duration.
What this interaction means in plain words
Deflazacort and Mefenamic acid 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.
Deflazacort belongs to Miscellaneous; Mefenamic acid belongs to Musculoskeletal.
Why it happens
Additive gastric mucosal injury: NSAIDs reduce protective prostaglandins while corticosteroids impair mucosal healing.
What to do
Use the lowest NSAID dose for the shortest time and add a proton pump inhibitor in patients at risk. Monitor for GI symptoms and 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 Mefenamic acid
- Ketorolac intranasal + Mefenamic acid Contraindicated
- Ketorolac + Mefenamic acid Contraindicated
- Aceclofenac + Mefenamic acid Major
- Acemetacin + Mefenamic acid Major
- Acetylsalicylic acid + Mefenamic acid Major
- Alteplase + Mefenamic acid Major
Other interactions of Deflazacort
- Adenovirus types 4 and 7 live + Deflazacort Contraindicated
- Bcg vaccine live + Deflazacort Contraindicated
- Deflazacort + Influenza virus vaccine quadrivalent intranasal Contraindicated
- Deflazacort + Measles mumps and rubella vaccine Contraindicated
- Deflazacort + Measles mumps and rubella vaccine live Contraindicated
- Deflazacort + Measles mumps rubella and varicella vaccine live Contraindicated
Frequently asked questions
Can I take Deflazacort with Mefenamic acid?
MediHelp rates the interaction as moderate. Deflazacort and Mefenamic acid 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 combined with NSAIDs increase the risk of peptic ulceration and gastrointestinal bleeding. The risk rises with higher doses and longer duration.
How serious is the interaction between Deflazacort and Mefenamic acid?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest NSAID dose for the shortest time and add a proton pump inhibitor in patients at risk. Monitor for GI symptoms and bleeding.
What other medicines interact with Mefenamic acid?
MediHelp also lists interactions of Mefenamic acid with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Mefenamic acid page.
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