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Drug interactions

Colesevelam + Glyburide-metformin

Severity: Moderate

Colesevelam 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

Colesevelam binds glyburide in the gut and lowers its absorption when taken together. Separating the doses avoids the reduction. Colesevelam also lowers glucose and may help glycemic control.

What this interaction means in plain words

Colesevelam 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.

Colesevelam belongs to Endocrine; Glyburide-metformin belongs to Endocrine.

Evidence level: High

Why it happens

Colesevelam is a bile acid sequestrant that binds glyburide in the gastrointestinal tract and reduces absorption.

What to do

Give glyburide-metformin at least 4 hours before colesevelam. Monitor blood glucose if timing cannot be separated.

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 Colesevelam with Glyburide-metformin?

MediHelp rates the interaction as moderate. Colesevelam 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. Colesevelam binds glyburide in the gut and lowers its absorption when taken together. Separating the doses avoids the reduction. Colesevelam also lowers glucose and may help glycemic control.

How serious is the interaction between Colesevelam 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: Give glyburide-metformin at least 4 hours before colesevelam. Monitor blood glucose if timing cannot be separated.

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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