Drug interactions
Methylprednisolone + Quinidine
Severity: Minor
Methylprednisolone and Quinidine: minor 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
Quinidine inhibits P-glycoprotein and may modestly increase methylprednisolone exposure. The clinical effect is generally small, though quinidine itself needs careful monitoring.
What this interaction means in plain words
Methylprednisolone and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Methylprednisolone belongs to Endocrine; Quinidine belongs to Anti Parasitic.
Why it happens
Inhibition of P-glycoprotein efflux by quinidine may increase methylprednisolone absorption and tissue levels.
What to do
No dose change is usually needed. Monitor for corticosteroid adverse effects if high doses are used.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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 Quinidine
- Adagrasib + Quinidine Contraindicated
- Arsenic trioxide + Quinidine Contraindicated
- Artemether / lumefantrine + Quinidine Contraindicated
- Chloroquine + Quinidine Contraindicated
- Dofetilide + Quinidine Contraindicated
- Dronedarone + Quinidine Contraindicated
Frequently asked questions
Can I take Methylprednisolone with Quinidine?
MediHelp rates the interaction as minor. Methylprednisolone and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Quinidine inhibits P-glycoprotein and may modestly increase methylprednisolone exposure. The clinical effect is generally small, though quinidine itself needs careful monitoring.
How serious is the interaction between Methylprednisolone and Quinidine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is usually needed. Monitor for corticosteroid adverse effects if high doses are used.
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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