YES, IN STOCK! Ships USPS Priority Mail. Expected delivery is 1-3 days for U.S. orders, depending on your proximity to our Maryland distribution facility (once shipped). Check your email (and spam folder) for order confirmations and tracking info.

• APRIL 2032 exp date
• 14 130mg tablets per pack
• 14 days protection for adults
• 28+ days protection for children (tablets are scored for easy splitting)
• FDA-mandated individually foil-sealed for single tablet storage and dosing.
• No prescription required – OTC
• Made in the U.S.A. since 1982 by Anbex, Inc.

Which brands are FDA approved? 

Search the FDA Orange Book Database. There are only TWO brands of potassium iodide that can legally sold in the U.S. to prevent thyroid cancer from radiation exposure. EVERY Iosat™ batch is analyzed by the FDA for safety, quality, efficacy and 10-year shelf life sustainability.

How many should I stockpile?

Storing at least one pack (14 tablets) PER person for each location frequented (home, 2nd home, relative’s home, childcare, office, etc.) is our recommendation. Iosat Potassium Iodide tablets should be immediately available in the event of a nuclear radiation emergency. To be most effective, the first dose should be administered no later than 2-3 hours prior to potential exposure to radioactive iodine (as directed by public health officials).  Administer one dose every day (same time) until your family has evacuated to an uncontaminated area, and then stop administering the tablets (as directed by public health officials). Any remaining tablets will still be foil-sealed and available for a future need.