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Drug interactions

Diflunisal + Ethanol

Severity: Moderate

Diflunisal and Ethanol: 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

Alcohol irritates the gastric mucosa and diflunisal inhibits protective prostaglandins and platelet function. Together they increase the risk of gastric irritation, ulceration and GI bleeding, particularly with heavy or chronic drinking.

What this interaction means in plain words

Diflunisal and Ethanol 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.

Evidence level: Moderate

Why it happens

Additive gastric mucosal injury from alcohol and NSAID-mediated prostaglandin inhibition plus impaired platelet function.

What to do

Advise patients to avoid or minimize alcohol while taking diflunisal, and consider gastroprotection in those at high GI risk.

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?

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 Diflunisal with Ethanol?

MediHelp rates the interaction as moderate. Diflunisal and Ethanol 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. Alcohol irritates the gastric mucosa and diflunisal inhibits protective prostaglandins and platelet function. Together they increase the risk of gastric irritation, ulceration and GI bleeding, particularly with heavy or chronic drinking.

How serious is the interaction between Diflunisal and Ethanol?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to avoid or minimize alcohol while taking diflunisal, and consider gastroprotection in those at high GI risk.

What other medicines interact with Diflunisal?

MediHelp also lists interactions of Diflunisal with, for example, Ketorolac, Ketorolac intranasal, Acemetacin. The full list is on the Diflunisal page.

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

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