Does Fluconazole Interact With Glyburide?

(See CONTRAINDICATIONS and PRECAUTIONS .) Oral hypoglycemics: The effects of fluconazole on the pharmacokinetics of the sulfonylurea oral hypoglycemic agents tolbutamide, glipizide, and glyburide were evaluated in three placebo-controlled studies in normal volunteers.

Severity: Moderate

Severity basis: drug interactions section (keywords: caution). Combining Fluconazole (Azole antifungal) and Glyburide (Sulfonylurea) is classified as a moderate interaction.

What to Do

Use this combination with caution. Your prescriber may monitor you more closely or adjust doses.

From the FDA Label

(See CONTRAINDICATIONS and PRECAUTIONS .) Oral hypoglycemics: The effects of fluconazole on the pharmacokinetics of the sulfonylurea oral hypoglycemic agents tolbutamide, glipizide, and glyburide were evaluated in three placebo-controlled studies in normal volunteers.

Source: FDA structured product labeling (set_id 01df20c4-7b94-044e-e063-6394a90a406a).

Fluconazole

Azole antifungal

Brands: Diflucan

View Fluconazole safety profile

Glyburide

Sulfonylurea

Brands: DiaBeta, Glynase

View Glyburide safety profile

Check these against your full medication list in our free Interaction Checker

This information is educational — not medical advice.

This page is provided for general educational purposes and summarizes publicly available data from sources such as the U.S. Food & Drug Administration. It is not a substitute for the judgment of a licensed clinician and should not be used to start, stop, or change any medication. It may be incomplete or out of date, and individual circumstances vary. Always talk with your prescriber or pharmacist about your specific medications and health conditions. If you think you may have a medical emergency, call 911.

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