Iohexol and Metformin: Drug Interaction Guide

Quick answer: This combination requires caution. Iohexol and Metformin can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Iohexol interacts with Metformin

Iodinated contrast can precipitate acute kidney injury, reducing metformin clearance and increasing the risk of metformin-associated lactic acidosis.

What you should do

Assess eGFR before contrast exposure; withhold metformin in patients with renal impairment or high-risk procedures and restart only after renal function is stable.

Key facts

Severity

Moderate — caution required

Mechanism

Iodinated contrast can precipitate acute kidney injury, reducing metformin clearance and increasing the risk of metformi...

Action

Assess eGFR before contrast exposure; withhold metformin in patients with renal impairment or high-risk procedures and r...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Iohexol and Metformin together?

With caution. Assess eGFR before contrast exposure; withhold metformin in patients with renal impairment or high-risk procedures and restart only after renal function is stable.

What is the severity of this interaction?

The interaction between Iohexol and Metformin is classified as Moderate — caution required. Iodinated contrast can precipitate acute kidney injury, reducing metformin clearance and increasing the risk of metformin-associated lactic acidosis.

What should I do if I'm prescribed both?

Assess eGFR before contrast exposure; withhold metformin in patients with renal impairment or high-risk procedures and restart only after renal function is stable. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.