Frequently Asked Questions

  1. How many tablets are in each package?
  2. What is the daily dosage required?
  3. How long is the shelf life of potassium iodide?
  4. How long does it usually take from the time I submit my electronic order until the time I get my product?
  5. How long does the protection last?
  6. How long has Anbex been in business?
  7. Does KI help prevent other cancers that might occur other places in the body?
  8. Is my credit card secure?
  9. Can I pay by check?
  10. What about international orders and payment?
  11. What is the US Government’s position on providing KI to workers and the public in the event of another nuclear emergency?
  12. Does the shipping price cover the order or is it applied to each package?
  13. Why doesn’t my iOSAT come with written instructions?


1. How many tablets are in each package?
There are 14 tablets in each package of iOSAT, which will protect one adult for two weeks. Anyone remaining in a contaminated area for more than two weeks should consider the use of additional iOSAT tablets as directed by Public Health Officials.

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2. What is the daily dosage required?
New FDA guidelines call for the daily administration of one iOSAT tablet (130 mg. of potassium iodide (KI)) for adults and children over 18 years old who weigh more that 150 pounds. Children from age 3 to 18 years old who weigh less than 150 pounds should take ½ tablet. Children from age one month to 3 years should take ¼ tablet. And infants less than one month old should take ¼ tablet. If necessary, children too young to take solid food or unable to swallow a tablet can take iOSAT dissolved in a liquid (such as chocolate milk) or in a soft food such as applesauce.

See iOSAT Patient Product Insert for specific dosage instructions


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3. How long is the shelf life of potassium iodide?
iOSAT Tablets are FDA approved for seven years and should be stored unopened in a dry environment at room temperature.

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4. How long does it usually take from the time I submit my electronic order until the time I get my product?
Orders received by Anbex can normally be expected to be shipped within one week.

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5. How long does the protection last?
Each iOSAT Tablet provides 24 hours of protection.

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6. How long has Anbex been in business?
Anbex was formed shortly after the Three Mile Island accident in 1979. The company received its NDA (the FDA approval to sell the product) in 1982 after FDA review of the product and its manufacturing process.

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7. Does KI help prevent other cancers that might occur other places in the body?
iOSAT only protects against radioactive iodine which can injure the thyroid and cause thyroid cancer, thyroid nodules, and other thyroid problems. The product is essentially ineffective against other radioactive products. However, since radioactive iodine would probably be the cause of 90% to 95% of all “off-site” injuries in a power-plant accident, the protection provided by iOSAT is extremely valuable. (At Chernobyl, for example, thyroid cancer, which is now epidemic in some areas as a result of the accident, was the only health effect seen in areas more than a few miles from the plant.)

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8. Is my credit card secure?
Anbex uses the services of a secure server to take your credit card order. This data is encrypted and only available to Anbex personnel processing the order.

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9. Can I pay by check?
Yes – send in an order by mail, and it will be processed immediately after the check clears.

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10. What about international orders and payment?
We can only accept credit cards or international money orders drawn in US dollars. Bank charge backs have been exorbitant and we therefore must restrict payment to the two forms mentioned.

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11. What is the US Government’s position on providing KI to workers and the public in the event of another nuclear emergency?
The US Nuclear Regulatory Commission (NRC) does not dispute the safety or effectiveness of KI. In fact, they require nuclear power-plants to stockpile it to protect plant workers, and FEMA (Federal Emergency Management Agency) plans call for KI to protect those individuals who would be unable to be evacuated in a nuclear accident – especially those under the care of the government (such as prisoners or patients in government hospitals).


But the NRC is resisting the calls for a national stockpile of KI, claiming it is “unnecessary.” As a result, the US remains the only major nuclear power that does not have a supply to protect its citizens. Recently, to counter the widespread criticism of this policy, the government announced it had established a “national stockpile” of KI. This news was welcomed by many in the scientific community. However, at a recent meeting, the NRC admitted that its operational “national stockpile” consisted of only 2500 tablets, not even enough for 200 people.


As a reaction to criticism by US medical groups and the World Health Organization, the NRC has announced it would make KI available (free of charge) to state or local governments desiring it. Again, this news was greeted with enthusiasm. However, following this announcement, the NRC “clarified” its position, and now says it will provide KI only to those people living in communities within the 10 mile “EPZ” (Emergency Planning Zone) surrounding nuclear plants. Given that most casualties in a nuclear accident would take place more than 50 miles from the plant (following Chernobyl, thousands of cases of childhood thyroid cancer developed hundreds of miles away), the current NRC position is probably of questionable value.


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12. Does the shipping price cover the order or is it applied to each package?
Each domestic order regardless of size is charged a flat $4 for shipping and handling to destinations in the US. For international orders, including Canada and Mexico, a flat fee of $20.00 is charged for shipping and handling.

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13. Why doesn’t my iOSAT come with written instructions?
The iOSAT package comes with a Patient Product Inserted along with the tablets in a sealed package. This was designed so that the instructions would not become separated from the product in times of an emergency.

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Other questions? Please contact us.