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Drug interactions

Gliclazide + Sulindac

Severity: Moderate

Gliclazide and Sulindac: 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

NSAIDs may enhance sulfonylurea effect and increase the risk of hypoglycemia. Sulindac is thought to have a smaller effect than other NSAIDs, but cases of enhanced hypoglycemia cannot be excluded.

What this interaction means in plain words

Gliclazide and Sulindac 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.

Gliclazide belongs to Endocrine; Sulindac belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Possible mechanisms include displacement from protein binding, reduced renal prostaglandin-mediated clearance and prostaglandin effects on insulin secretion; the mechanism is not firmly established.

What to do

Monitor blood glucose when starting or stopping sulindac and reduce the gliclazide dose if hypoglycemia occurs. Patients should recognize hypoglycemia symptoms.

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 Gliclazide with Sulindac?

MediHelp rates the interaction as moderate. Gliclazide and Sulindac 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. NSAIDs may enhance sulfonylurea effect and increase the risk of hypoglycemia. Sulindac is thought to have a smaller effect than other NSAIDs, but cases of enhanced hypoglycemia cannot be excluded.

How serious is the interaction between Gliclazide and Sulindac?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose when starting or stopping sulindac and reduce the gliclazide dose if hypoglycemia occurs. Patients should recognize hypoglycemia symptoms.

What other medicines interact with Gliclazide?

MediHelp also lists interactions of Gliclazide with, for example, Ciprofloxacin, Clarithromycin, Disopyramide. The full list is on the Gliclazide page.

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

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