Iohexol (contrast agent) (Iohexol) — Uses, Dosage, Side Effects & Safety

Drug class: Non-ionic iodinated contrast agent

Overview

Iohexol is a non-ionic, water-soluble contrast agent used to enhance the visibility of blood vessels, organs, and tissues during X-ray-based imaging procedures such as CT scans, angiography, and urography. It helps radiologists and doctors obtain clearer images to diagnose a variety of conditions, including vascular diseases, tumors, and abnormalities in the urinary tract. Iohexol works by temporarily increasing the contrast of the area being examined, making it easier to differentiate between normal and abnormal structures. It is administered by injection, either into a vein or directly into a body cavity, depending on the type of imaging required. Key points for patients: Iohexol is generally well-tolerated, but it is important to inform your healthcare provider about any allergies, kidney problems, or previous reactions to contrast agents. You may be asked to fast or adjust certain medications before your procedure.

For related Iohexol (contrast agent) guidance, compare Iopamidol (contrast agent) and Iomeprol (contrast agent).

Frequently Asked Questions about Iohexol (contrast agent)

What is iohexol used for?

Iohexol is used as a contrast agent to improve the visibility of blood vessels, organs, and tissues during X-ray-based imaging procedures such as CT scans, angiography, and urography.

Is iohexol safe for people with kidney disease?

Iohexol can increase the risk of kidney injury, especially in people with pre-existing kidney disease or diabetes. Your doctor will assess your kidney function before and after the procedure and may take extra precautions.

Can I have iohexol if I am allergic to iodine?

If you have a known allergy to iodinated contrast agents or iodine, inform your healthcare provider. Alternative imaging methods or premedication may be considered.

How long does iohexol stay in the body?

Iohexol is rapidly eliminated from the body, primarily through the kidneys. Most of the contrast agent is excreted in urine within 24 hours in people with normal kidney function.

What should I do if I feel unwell after receiving iohexol?

If you experience symptoms such as difficulty breathing, swelling, rash, chest pain, or decreased urination, seek immediate medical attention.

Can iohexol be used in children?

Yes, iohexol can be used in children, but dosing is carefully adjusted based on the child's weight and the type of imaging required.

Do I need to stop taking my medications before receiving iohexol?

Some medications, such as metformin, may need to be paused before and after iohexol administration. Always follow your healthcare provider's instructions.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.