The Canadian Nuclear Safety Commission (CNSC) — the federal agency that monitors the safe operation of nuclear stations — now requires that all homes and businesses within 10 km of a nuclear power station receive a supply of potassium iodide (KI) pills. The pills have been available free of charge at select pharmacies, but will now be sent by mail due to increased safety standards.

In the very unlikely event of a nuclear emergency and a release of radioactive iodine to the public, KI pills will help prevent the development of thyroid cancer, and are especially effective at safeguarding children's thyroid glands. It is important for each household to have a supply of these pills because they are most effective if taken just before or soon after exposure to radioactive iodine.

The distribution of KI pills is not due to any change in the risk of a nuclear emergency and is not meant to cause alarm. We believe that staying safe means being prepared, even for the most unlikely of events.