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Potassium Iodide (Systemic)
In the U.S.-
Other commonly used names are KI; SSKI.
Potassium iodide (poe-TAS-ee-um EYE-oh-dide) is used to treat overactive thyroid and to protect the thyroid gland from the effects of radiation from inhaled or swallowed radioactive iodine. It may be used before and after administration of medicine containing radioactive iodine or after accidental exposure to radioactive iodine (for example, from nuclear power plant accidents that involved release of radioactivity to the environment). It may also be used for other problems as determined by your doctor.
Potassium iodide is taken by mouth. It may be taken as an oral solution, syrup, uncoated tablet, or enteric-coated delayed-release tablet. However, the delayed-release tablet form may cause serious side effects and its use is generally not recommended.
Some brands of the oral solution are available without a prescription. Use them only as directed by state or local public health authorities in case of a radiation emergency. Other forms and strengths of potassium iodide are available only with your doctor's prescription.
Potassium iodide is available in the following dosage forms:
Before Using This Medicine
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For potassium iodide, the following should be considered:
Allergies- Tell your doctor if you have ever had any unusual or allergic reaction to potassium iodide, iodine, or iodine-containing foods. Also tell your health care professional if you are allergic to any substances, such as foods, preservatives, or dyes.
Pregnancy- Taking potassium during pregnancy may cause thyroid problems or goiter in the newborn infant.
Breast-feeding- Potassium iodide passes into the breast milk and may cause skin rash and thyroid problems in nursing babies.
Children- Potassium iodide may cause skin rash and thyroid problems in infants.
Older adults- Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults. Although there is no specific information comparing use of potassium iodide in the elderly with use in other age groups, this medicine is not expected to cause different side effects or problems in older people than in younger adults.
Other medicines- Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking potassium iodide, it is especially important that your health care professional know if you are taking any of the following:
Other medical problems- The presence of other medical problems may affect the use of potassium iodide. Make sure you tell your doctor if you have any other medical problems, especially:
Proper Use of This Medicine
If potassium iodide upsets your stomach, take it after meals or with food or milk unless otherwise directed by your doctor. If stomach upset (nausea, vomiting, stomach pain, or diarrhea) continues, check with your doctor.
For patients taking this medicine for radiation exposure :
For patients taking the oral solution form of this medicine:
For patients taking the uncoated tablet form of this medicine:
The dose of potassium iodide will be different for different patients. Follow your doctor's orders or the directions on the label . The following information includes only the average doses of potassium iodide. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of solution or syrup or the number of tablets you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are taking potassium iodide .
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
To store this medicine:
Precautions While Using This Medicine
Your doctor should check your progress at regular visits to make sure that this medicine does not cause unwanted effects.
For patients on a low-potassium diet:
Side Effects of This Medicine
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. When this medicine is used for a short time at low doses, side effects usually are rare.
Check with your doctor as soon as possible if any of the following side effects occur:
Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. 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.
Once a medicine has been approved for marketing for a certain use, experience may show that it is also useful for other medical problems. Although these uses are not included in product labeling, potassium iodide is used in certain patients with the following medical conditions:
In addition to the above information, for patients taking this medicine for a fungus infection:
Other than the above information, there is no additional information relating to proper use, precautions, or side effects for these uses.
Last updated: Tue, 06 Jan 2009 00:20:03 GMT