Potassium Iodide

State of Connecticut is replacing expired Potassium Iodide tablets (IOSAT 130mg tablets) with ThyroSafe® 65mg potassium iodide tablets. These new tablets have updated instructions for use and dosage. Information on the proper disposal of the expired product is provided at pick-up locations.

The State of Connecticut provides KI to the public living and working within 10 miles of Millstone Station in Waterford, CT.

KI is an over-the-counter tablet that can help protect your thyroid gland from radioactive iodine, one of the potentially harmful emissions that could be released in a nuclear power plant accident. In the event of an emergency, follow instructions from emergency management officials.

Do not ingest KI unless directed to do so by emergency management officials. Expired KI should be disposed of in your regular household waste.

Potassium Iodide (KI) is only one part of Connecticut's Radiological Emergency Response Plans. View the Division of Emergency Management and Homeland Security website for more information about KI and other radiological emergency preparedness plans.

KI is provided through the State of Connecticut to people who work or live in the communities within the ten-mile emergency planning zone around Millstone Station in Waterford, CT.