The Food and Drug Administration has agreed that states may implement a two-year expiration date extension of stockpiles of 'IOSAT' potassium iodide tablets originally purchased in 2002, and bearing the original expiration date of "3-2007". In Massachusetts' case, this involves tablets bearing one of the following three lot numbers: P20022, P20023 and P20024. You may consider that your stockpile of potassium iodide tablets now has an expiration date of March 2009, provided that the tablets have been stored in accordance with manufacturer's instructions, and by maintaining copies of the following two letters with your stockpile.

This information is provided by the Radiation Control Program within the Department of Public Health.

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