Potassium Iodide (Systemic)
Brand Names : Pima, Thyro-Block, KI, SSKI
- Antifungal, systemic
- Antihyperthyroid agent
- Iodine replenisher
- Radiation protectant, thyroid gland
- Thyroid inhibitor
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:
Delayed-release tablets (U.S.)
Oral solution (U.S.)
Some commonly used brand names are:
In the U.S. -
In Canada -
Generic name product may be available in the U.S.
Other commonly used names are KI
* Not commercially available
in the U.S.; however, potassium iodide tablets are available to government
and public health organizations for use in radiation emergencies.