Glyburide and Tirzepatide interaction

Glyburide and Tirzepatide: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Glyburide label · effective 2021-07-01

Major

These conditions should be treated with insulin.

Contraindicationsby drug classView label on DailyMed
Moderate

WARNINGS SPECIAL WARNING ON INCREASED RISK OF CARDIOVASCULAR MORTALITY The administration of oral hypoglycemic drugs has been reported to be associated with increased cardiovascular mortality as compared to treatment with diet alone or diet plus insulin.

Warningsby drug classView label on DailyMed
Moderate

Although only one drug in the sulfonylurea class (tolbutamide) was included in this study, it is prudent from a safety standpoint to consider that this warning may also apply to other oral hypoglycemic drugs in this class, in view of their close similarities in mode of action and chemical structure.

Warningsby drug classView label on DailyMed
Moderate

A potential interaction between oral miconazole and oral hypoglycemic agents leading to severe hypoglycemia has been reported.

Drug interactionsby drug classView label on DailyMed
Minor

This warning is based on the study conducted by the University Group Diabetes Program (UGDP), a long-term prospective clinical trial designed to evaluate the effectiveness of glucose-lowering drugs in preventing or delaying vascular complications in patients with non-insulin-dependent diabetes.

Warningsby drug classView label on DailyMed

From the Tirzepatide (Zepbound) label · effective 2026-08-28

Moderate

Hypoglycemia: Concomitant use with insulin or an insulin secretagogue may increase the risk of hypoglycemia, including severe hypoglycemia.

Warnings and precautionsby drug classView label on DailyMed
Moderate

Reducing dose of insulin or insulin secretagogue may be necessary.

Warnings and precautionsby drug classView label on DailyMed
Moderate

In this trial, patients taking ZEPBOUND in combination with an insulin secretagogue (e.g., sulfonylurea) had increased risk of hypoglycemia (10.3%) compared to ZEPBOUND-treated patients not taking a sulfonylurea (2.1%).

Warnings and precautionsby drug classView label on DailyMed
Moderate

The risk of hypoglycemia may be lowered by a reduction in the dose of insulin or sulfonylurea (or other concomitantly administered insulin secretagogue).

Warnings and precautionsby drug classView label on DailyMed
Moderate

When initiating ZEPBOUND, consider reducing the dose of concomitantly administered insulin or insulin secretagogues (e.g., sulfonylureas) to reduce the risk of hypoglycemia [see Warnings and Precautions ( 5.7 )] .

Drug interactionsby drug classView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.