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Drug interactions

Captopril + Glyburide-metformin

Severity: Moderate

Captopril and Glyburide-metformin: 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

ACE inhibitors such as captopril may enhance insulin sensitivity and potentiate the glucose-lowering effect of sulfonylureas and metformin, occasionally causing hypoglycemia. Renal impairment related to ACE inhibition may also raise metformin levels.

What this interaction means in plain words

Captopril and Glyburide-metformin 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.

Captopril belongs to Cardiovascular; Glyburide-metformin belongs to Endocrine.

Evidence level: Moderate

Why it happens

Improved insulin sensitivity adds to antidiabetic effect; renal effects may alter metformin clearance.

What to do

Monitor blood glucose when starting captopril and reduce the glyburide dose if hypoglycemia occurs. Monitor renal function periodically.

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 Captopril with Glyburide-metformin?

MediHelp rates the interaction as moderate. Captopril and Glyburide-metformin 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. ACE inhibitors such as captopril may enhance insulin sensitivity and potentiate the glucose-lowering effect of sulfonylureas and metformin, occasionally causing hypoglycemia. Renal impairment related to ACE inhibition may also raise metformin levels.

How serious is the interaction between Captopril and Glyburide-metformin?

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 captopril and reduce the glyburide dose if hypoglycemia occurs. Monitor renal function periodically.

What other medicines interact with Glyburide-metformin?

MediHelp also lists interactions of Glyburide-metformin with, for example, Bosentan, Cholic acid, Clarithromycin. The full list is on the Glyburide-metformin page.

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

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