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Drug interactions

Dapsone + Sodium citrate / citric acid

Severity: Minor

Dapsone and Sodium citrate / citric acid: 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

Citrate buffer solutions raise gastric pH transiently and might slightly reduce dapsone absorption, but no meaningful clinical effect is established.

What this interaction means in plain words

Dapsone and Sodium citrate / citric acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Transient increase in gastric pH may slightly reduce dapsone dissolution.

What to do

No routine action needed. Separate doses by a couple of hours if desired.

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 Dapsone with Sodium citrate / citric acid?

MediHelp rates the interaction as minor. Dapsone and Sodium citrate / citric acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Citrate buffer solutions raise gastric pH transiently and might slightly reduce dapsone absorption, but no meaningful clinical effect is established.

How serious is the interaction between Dapsone and Sodium citrate / citric acid?

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 action needed. Separate doses by a couple of hours if desired.

What other medicines interact with Dapsone?

MediHelp also lists interactions of Dapsone with, for example, Bcg vaccine live, Primaquine, Apalutamide. The full list is on the Dapsone page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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