Skip navigation | ||
|
||
Other drug names: | A-Am An-Az B C-Ch Ci-Cz D-Dh Di-Dz E F G H I-J K-L M-Mh Mi-Mz N-Nh Ni-Nz O P-Pl Pm-Pz Q-R S-Sn So-Sz T-To Tp-Tz U-V W-Z 0-9 |
Contents of this page: | |
Iron-containing MRI (magnetic resonance imaging) contrast agents (also called superparamagnetic agents) are used to help provide a clear picture during MRI. MRI is a special kind of diagnostic procedure. It uses magnets and computers to create images or “pictures” of certain areas inside the body. Unlike x-rays, it does not involve ionizing radiation.
Ferumoxides, an iron-containing contrast agent, is given by injection before MRI to help find and diagnose tumors of the liver.
The dose of ferumoxides will be different for different patients according to body weight.
Ferumoxides is to be used only by or under the supervision of a doctor.
In deciding to use a diagnostic test, any risks of the test must be weighed against the good it will do. This is a decision you and your doctor will make. Also, test results may be affected by other things. For MRI contrast agents, the following should be considered:
Allergies—Tell your doctor if you have ever had any unusual or allergic reaction to contrast agents or to injectable preparations of iron. Also, tell your doctor if you are allergic to any other substances, such as foods, preservatives, or dyes.
Pregnancy—Studies with ferumoxides have not been done in pregnant women. However, in animal studies, ferumoxides caused birth defects in the offspring when given to the mother in doses many times larger than the human dose. Also, it is not yet known what effect the magnetic field used in MRI might have on the development of the fetus. Be sure you have discussed this with your doctor.
Breast-feeding—It is not known whether ferumoxides passes into the breast milk. However, your doctor may want you to stop breast-feeding for some time after you receive an MRI contrast agent. Be sure you have discussed this with your doctor.
Children—There is no specific information comparing use of MRI contrast agents in children with use in other age groups.
Older adults—Ferumoxides has been used in tests in older adults and has not been shown to cause different side effects or problems in older people than it does in younger adults.
Your doctor may have special instructions for you to get ready for your test, depending on the type of test you are having. If you do not understand the instructions you receive or if you have not received any instructions, check with your doctor ahead of time.
Along with their needed effects, MRI contrast agents may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Other side effects may occur that usually do not need medical attention. These side effects may go away as your body adjusts to this agent. However, check with your doctor if any of the following side effects continue or are bothersome:
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.
Copyright© 2003 Thomson MICROMEDEX. All rights reserved. USP DI® and Advice for the Patient® are registered trademarks of USP used under license to Micromedex, a business of Thomson Healthcare Inc. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.
Home | Health Topics | Drug Information | Encyclopedia | Dictionary | News | Directories | Other Resources | |
Copyright | Privacy | Accessibility | Selection Guidelines U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 National Institutes of Health | Department of Health & Human Services |
Page last updated: 22 October 2004 |