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Drug interactions

Prednisolone + Quinidine

Severity: Minor

Prednisolone 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 could raise corticosteroid tissue exposure. The clinical effect is expected to be small.

What this interaction means in plain words

Prednisolone 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.

Prednisolone belongs to Endocrine; Quinidine belongs to Anti Parasitic.

Evidence level: Low

Why it happens

Quinidine inhibits P-glycoprotein efflux of corticosteroids.

What to do

No routine adjustment is needed; watch for increased steroid adverse effects.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Prednisolone with Quinidine?

MediHelp rates the interaction as minor. Prednisolone 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 could raise corticosteroid tissue exposure. The clinical effect is expected to be small.

How serious is the interaction between Prednisolone 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 routine adjustment is needed; watch for increased steroid adverse effects.

What other medicines interact with Prednisolone?

MediHelp also lists interactions of Prednisolone 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 Prednisolone page.

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