Drug interactions
Contrast media + Glyburide-metformin
Severity: Major
Contrast media and Glyburide-metformin: major 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
Iodinated contrast can cause acute kidney injury, which reduces metformin elimination and raises the risk of lactic acidosis. The risk is greatest in patients with renal impairment.
What this interaction means in plain words
Contrast media and Glyburide-metformin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Contrast-induced reduction in renal function decreases renal clearance of metformin.
What to do
Hold metformin at the time of or before the procedure in at-risk patients and for 48 hours afterward, restarting only once renal function is confirmed stable.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Glyburide-metformin
Frequently asked questions
Can I take Contrast media with Glyburide-metformin?
MediHelp rates the interaction as major. Contrast media and Glyburide-metformin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Iodinated contrast can cause acute kidney injury, which reduces metformin elimination and raises the risk of lactic acidosis. The risk is greatest in patients with renal impairment.
How serious is the interaction between Contrast media and Glyburide-metformin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Hold metformin at the time of or before the procedure in at-risk patients and for 48 hours afterward, restarting only once renal function is confirmed stable.
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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