Potassium iodide (KI) is a type of iodine a person may receive during a radiation emergency. It works by preventing the thyroid from absorbing a type of radioactive material. KI is a type of medical ...

Potassium iodide is a salt made up of the minerals potassium (K) and iodine (I). Its chemical formula is “KI.” Potassium iodide is a medication and, when used properly, it can help protect the thyroid ...

Potassium iodide (KI) is a salt that can help protect you from radioactive iodine. Your thyroid gland is the part of your body that’s most sensitive to radioactive iodine. Potassium iodide can help ...