Drug interactions
Contrast media + Glipizide-metformin
Severity: Major
Contrast media and Glipizide-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, and metformin is eliminated unchanged by the kidneys. Reduced clearance leads to metformin accumulation and raises the risk of metformin-associated lactic acidosis, particularly in patients with impaired renal function.
What this interaction means in plain words
Contrast media and Glipizide-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 elimination of metformin, causing accumulation.
What to do
Hold metformin at the time of or before the procedure in patients with reduced eGFR, liver disease, alcoholism or heart failure, or receiving intra-arterial contrast. Re-check renal function about 48 hours afterward and restart metformin only if it is 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 Glipizide-metformin
Frequently asked questions
Can I take Contrast media with Glipizide-metformin?
MediHelp rates the interaction as major. Contrast media and Glipizide-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, and metformin is eliminated unchanged by the kidneys. Reduced clearance leads to metformin accumulation and raises the risk of metformin-associated lactic acidosis, particularly in patients with impaired renal function.
How serious is the interaction between Contrast media and Glipizide-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 patients with reduced eGFR, liver disease, alcoholism or heart failure, or receiving intra-arterial contrast. Re-check renal function about 48 hours afterward and restart metformin only if it is stable.
What other medicines interact with Glipizide-metformin?
MediHelp also lists interactions of Glipizide-metformin with, for example, Diatrizoate meglumine / diatrizoate, Diatrizoate, Diazoxide. The full list is on the Glipizide-metformin page.
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