Anbex, Inc., the manufacturer and distributor of Iosat™ brand Potassium Iodide, has been the largest supplier of FDA approved Potassium Iodide (KI) tablets since 1982.Iosat™ received its approval from the US Food and Drug Administration in 1982, and is the only full-strength tablet for radiation blocking which may legally be sold in the US. Only Iosat™ has passed all FDA tests for purity, quality, safety and efficacy.