Drug interactions
Glyburide-metformin + Ibuprofen / famotidine
Severity: Moderate
Glyburide-metformin and Ibuprofen / famotidine: 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
Ibuprofen may enhance the glucose-lowering effect of sulfonylureas in some reports, and NSAIDs can impair renal function, which affects metformin safety. Famotidine has little effect on glyburide exposure and is also renally cleared by cationic transport, with minor relevance to metformin.
What this interaction means in plain words
Glyburide-metformin and Ibuprofen / famotidine 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.
Why it happens
NSAIDs may displace sulfonylureas from protein binding and reduce renal prostaglandin-dependent perfusion, while famotidine competes weakly for renal cationic secretion.
What to do
Monitor blood glucose and renal function, especially in the elderly or those with renal impairment. Use the lowest effective ibuprofen dose for the shortest time.
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?
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Other interactions of Glyburide-metformin
Frequently asked questions
Can I take Glyburide-metformin with Ibuprofen / famotidine?
MediHelp rates the interaction as moderate. Glyburide-metformin and Ibuprofen / famotidine 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. Ibuprofen may enhance the glucose-lowering effect of sulfonylureas in some reports, and NSAIDs can impair renal function, which affects metformin safety. Famotidine has little effect on glyburide exposure and is also renally cleared by cationic transport, with minor relevance to metformin.
How serious is the interaction between Glyburide-metformin and Ibuprofen / famotidine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose and renal function, especially in the elderly or those with renal impairment. Use the lowest effective ibuprofen dose for the shortest time.
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.
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