Quick Answer
KI Tablets expire after a certain period, typically 5 years from the date of manufacture, as indicated on the packaging. Expired tablets are still effective, but their shelf life is uncertain. It is recommended to use the most recent batch of KI tablets for optimal protection.
Understanding KI Tablet Expiration Dates
Radiation Emergency Assistance Centers/Training Sites (REAC/TS) provide guidelines for potassium iodide (KI) tablet storage and expiration. When storing KI tablets, ensure they are kept in their original, sealed packaging and placed in a cool, dry area away from direct sunlight. The ideal storage temperature is between 15°C and 30°C (59°F to 86°F).
Storing KI Tablets for Long-Term Use
If you need to store KI tablets for an extended period, it’s essential to check the expiration date regularly and replace them every 5 years. If you cannot find a new batch of tablets with a more recent expiration date, use the existing ones. When storing multiple batches, label each container with the expiration date and batch number for easy identification.
Preparing for Nuclear Emergencies
In the event of a nuclear emergency, KI tablets can help prevent radioactive iodine uptake by the thyroid gland. To be effective, the KI tablets must be taken within a specific time frame, usually 24 hours, after exposure to radioactive iodine. When preparing for a nuclear emergency, ensure you have a sufficient supply of KI tablets in your shelter or emergency kit, and follow the recommended dosages and guidelines for use.
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