Veteran's Health Library Menu

Health Encyclopedia

Iohexol injection

What is this medicine?

IOHEXOL (EYE oh HEX ol) is a contrast agent that is used to help x-ray or CT scan diagnosis of problems of the brain, heart, kidney, or other parts of your body.

How should I use this medicine?

This medicine will only be given to you in a hospital or clinic setting. Ask your health care provider if you have questions.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as newborns, precautions do apply.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue

  • pain, redness, or irritation at site where injected

  • redness, blistering, peeling or loosening of the skin, including inside the mouth

  • signs and symptoms of a blood clot such as breathing problems; changes in vision; chest pain; severe, sudden headache; pain, swelling, warmth in the leg; trouble speaking; sudden numbness or weakness of the face, arm or leg

  • signs and symptoms of kidney injury like trouble passing urine or change in the amount of urine

Side effects that usually do not require medical attention (report these to your doctor or health care professional if they continue or are bothersome):

  • blurred vision

  • dizziness

  • headache

  • nausea, vomiting

What may interact with this medicine?

This medicine may interact with the following medications:

  • beta-blockers like metoprolol and propranolol

  • certain medicines for depression, anxiety, or psychotic disturbances

  • MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate

  • metformin

  • phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine

  • radioactive iodine

What if I miss a dose?

This does not apply.

Where should I keep my medicine?

This drug is given in a hospital or clinic and will not be stored at home.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • dehydration

  • diabetes

  • heart disease

  • history of blood diseases, like sickle cell anemia

  • homocystinuria

  • kidney disease

  • lung or breathing disease, like asthma

  • multiple myeloma

  • pheochromocytoma

  • thyroid disease

  • an unusual or allergic reaction to iohexol, iodine, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Your condition will be monitored carefully while you are receiving this medicine.

Author: StayWell Custom Communications
Help improve the VHL. Share your opinions! Click here for brief survey

VHL Web Tour Video - Opens in a pop up window

Copyright © The StayWell Company, LLC. except where otherwise noted.
Disclaimer - Opens 'Disclaimer' in Dialog Window | Help | About Veterans Health Library