This medication is used before X-ray imaging tests (such as CT scans). Iohexol contains iodine and belongs to a class of drugs known as contrast media or dyes. It works by adding contrast to body parts and fluids in these imaging tests. Iohexol improves the images obtained during a CT scan, so your doctor can more easily diagnose your condition.
Read your doctor's specific instructions on when and how to take iohexol before your imaging test. To make it easier to swallow, this medication can be mixed with water, carbonated beverages, milk, or juice. Your doctor or pharmacist should tell you the amount of iohexol to use and how much liquid to dilute it in.
Drink plenty of fluids before and after the imaging test, unless directed otherwise by your doctor.
This medication may also be given by a health care professional by injection into a vein, joint, the spine, or placed in the bladder or the rectum. If given these ways, there are different precautions and side effects to be aware of. Talk to your doctor or pharmacist for more details.
Tell your doctor right away if you have any serious side effects, including: change in the amount of urine.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
In the US -
Before taking iohexol, tell your doctor or pharmacist if you are allergic to it; to other contrast media; or to iodine; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Children and older adults may be more sensitive to the side effects of this drug, especially diarrhea.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
One product that may interact with this drug is: metformin.
If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe diarrhea, or severe abdominal cramping.
Do not share this medication with others.
Not applicable. This medication is given once before your imaging test. It is important to take this medication at the time prescribed by your doctor. If you forget to take the dose, your imaging test may need to be rescheduled.
Store at room temperature away from light. Do not freeze. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
Information last revised February 2014. Copyright(c) 2014 First Databank, Inc.
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