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Glyburide and Miglitol Interaction

Drug interaction information between Glyburide and Miglitol.

Glyburide and Miglitol have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Glyburide and Miglitol. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.

Drug A

Glyburide

Sulfonylurea

Drug B

Miglitol

Alpha-Glucosidase Inhibitor

How They Interact

Miglitol can lower the amount of glyburide that enters your blood.

What To Do

Your doctor may need to check your blood sugar more often and adjust your dose.

FDA Label Information

Drug Interactions Several studies investigated the possible interaction between miglitol and glyburide. In six healthy volunteers given a single dose of 5 mg glyburide on a background of 6 days treatment with miglitol (50 mg 3 times daily for 4 days followed by 100 mg 3 times daily for 2 days) or placebo, the mean C max and AUC values for glyburide were 17% and 25% lower, respectively, when glyburide was given with miglitol. In a study in diabetic patients in which the effects of adding miglitol 100 mg 3 times daily for 7 days or placebo to a background regimen of 3.5 mg glyburide daily...

Frequently Asked Questions

Can I take Glyburide and Miglitol together?

This is a minor interaction. Your doctor may need to check your blood sugar more often and adjust your dose.

How serious is the interaction between Glyburide and Miglitol?

This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.

Why do Glyburide and Miglitol interact?

Miglitol can lower the amount of glyburide that enters your blood.

Understanding the Glyburide and Miglitol Interaction

FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Glyburide belongs to the Sulfonylurea class and Miglitol belongs to the Alpha-Glucosidase Inhibitor class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Miglitol can lower the amount of glyburide that enters your blood. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.

Context around a specific patient determines real-world impact. Glyburide has 9 total documented interactions on file in this dataset, and Miglitol has 7. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Your doctor may need to check your blood sugar more often and adjust your dose. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.

An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Glyburide or Miglitol based on a web page, speak with your prescriber or pharmacist before making any change.

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.