Generic Name: iopamidol (eye oh PAM ih dol)
Brand Name: Isovue-200, Isovue-250, Isovue-M-200, Isovue-128, Isovue-370, Isovue-300, Isovue-M-300, Iopamidol-370
What is iopamidol?
Iopamidol is in a group of drugs called radiopaque (RAY dee oh payk) contrast agents. Iopamidol contains iodine, a substance that absorbs x-rays. Radiopaque contrast agents are used to allow blood vessels, organs, and other non-bony tissues to be seen more clearly on a CT scan or other radiologic (x-ray) examination.
Iopamidol is used to help diagnose certain disorders of the heart, brain, blood vessels, and nervous system.
Iopamidol may also be used for purposes not listed in this medication guide.
What is the most important information I should know about iopamidol?
You should not receive iopamidol if you have any type of active infection.
What should I discuss with my health care provider before receiving iopamidol?
Tell your doctor if you have ever had any type of reaction to another contrast agent.
To make sure iopamidol is safe for you, tell your doctor if you have:
liver or kidney disease;
heart disease, including congestive heart failure;
a history of stroke, blood clots, or coronary artery disease;
asthma, hay fever, food allergies;
epilepsy or other seizure disorder;
sickle cell anemia;
an active infection;
pheochromocytoma (tumor of the adrenal gland);
multiple myeloma (bone cancer); or
a thyroid disorder.
FDA pregnancy category B. Iopamidol is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.
Iopamidol can pass into breast milk and may harm a nursing baby. Tell your doctor if you are breast-feeding a baby.
How is iopamidol used?
Iopamidol is injected into a vein or artery through an IV. A healthcare provider will give you this injection.
You may be given medication to prevent certain side effects while you are receiving iopamidol.
Tell your caregivers if you feel any burning, pain, or swelling around the IV needle when iopamidol is injected.
Drink extra fluids before and after your radiologic test. Iopamidol can cause you to get dehydrated, which can lead to dangerous effects on your kidneys. Follow your doctor's instructions about the types and amount of fluids you should drink before and after your test.
Older adults may need special care to avoid becoming dehydrated. Your kidney function may need to be checked after you have received iopamidol.
Some people receiving iopamidol have had reactions that did not start until 30 to 60 minutes after the medicine was first given. Your caregivers may want to watch you during this period of time after your injection. This is to make sure you do not have any unwanted side effects or delayed reactions.
This medicine can cause unusual results with certain medical tests. Tell any doctor who treats you that you are using iopamidol.
What happens if I miss a dose?
Since iopamidol is used only during your radiologic test, you will not be on a dosing schedule.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while receiving iopamidol?
Do not allow yourself to become dehydrated during the first few days after receiving iopamidol. Call your doctor if you have any vomiting or diarrhea during this time. Follow your doctor's instructions about the types and amount of fluids you should drink.
Iopamidol side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
a light-headed feeling, like you might pass out;
swelling, rapid weight gain, little or no urinating;
wheezing or trouble breathing;
swelling in your neck or throat (enlarged thyroid);
heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;
signs of a stroke--sudden numbness or weakness (especially on one side of the body), sudden severe headache, slurred speech, problems with vision or balance; or
signs of a blood clot in the lung--chest pain, sudden cough, wheezing, rapid breathing, coughing up blood.
Common side effects may include:
slow heart rate;
hot flashes, burning sensation;
flushing (warmth, redness, or tingly feeling);
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
See also: Side effects (in more detail)
What other drugs will affect iopamidol?
Other drugs may interact with iopamidol, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.
More about iopamidol
Related treatment guides
Where can I get more information?
- Your doctor or pharmacist can provide more information about iopamidol.
- Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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