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Fluvastatin and Glyburide Interaction

Drug interaction information between Fluvastatin and Glyburide.

Fluvastatin and Glyburide have a documented moderate interaction in FDA labeling.

FDA drug labeling documents a moderate-severity interaction between Fluvastatin and Glyburide. 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

Fluvastatin

HMG-CoA Reductase Inhibitor (Statin)

Drug B

Glyburide

Sulfonylurea

How They Interact

Fluvastatin can increase the amount of glyburide in your system, which may cause your blood sugar to drop too low.

What To Do

You should monitor your blood sugar levels closely. Your doctor may need to adjust your medications if your fluvastatin dose changes.

FDA Label Information

Caution should be used when prescribing with fluvastatin ( 5.1 , 7.3 , 7.4 ) Glyburide: Monitor blood glucose levels when fluvastatin dose is changed ( 7 ) Phenytoin: Monitor plasma phenytoin levels when fluvastatin treatment is initiated or when the dosage is changed ( 7 ) Warfarin and coumarin derivates: Monitor prothrombin times when fluvastatin coadministration is initiated, discontinued, or the dosage changed ( 7 ) 7.1 Cyclosporine Cyclosporine coadministration increases fluvastatin exposure. 7.6 Glyburide Concomitant administration of fluvastatin and glyburide increased glyburide...

Fluvastatin Also Interacts With

View all Fluvastatin interactions →

Frequently Asked Questions

Can I take Fluvastatin and Glyburide together?

This is a moderate interaction. You should monitor your blood sugar levels closely. Your doctor may need to adjust your medications if your fluvastatin dose changes.

How serious is the interaction between Fluvastatin and Glyburide?

This interaction is classified as "moderate" severity by the FDA. Moderate interactions may worsen your condition or change how your medications work.

Why do Fluvastatin and Glyburide interact?

Fluvastatin can increase the amount of glyburide in your system, which may cause your blood sugar to drop too low.

Understanding the Fluvastatin and Glyburide Interaction

FDA-approved prescribing information for these two drugs flags their combination as a moderate-severity interaction. Fluvastatin belongs to the HMG-CoA Reductase Inhibitor (Statin) class and Glyburide belongs to the Sulfonylurea class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Fluvastatin can increase the amount of glyburide in your system, which may cause your blood sugar to drop too low. 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. Fluvastatin has 12 total documented interactions on file in this dataset, and Glyburide has 9. 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: You should monitor your blood sugar levels closely. 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 Fluvastatin or Glyburide 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.