iOSAT Potassium Iodide Tablets For Nuclear Fallout

FDA approved iOSAT potassium iodide tablets

iOSAT potassium iodide tablets (KI) radiation pills for nuclear fallout. Maybe you’ve heard of these before. Maybe not. I recommend that you consider keeping them on hand for preparedness, just in case. I do. Here’s the essence of what they are, and how they protect.

You might call them radiation pills. But they are specifically for thyroid protection from nuclear fallout – be it a nuclear weapon attack, or a nuclear reactor meltdown.

>> If and when ‘something happens’, it might be too late to get these iOSAT potassium iodide tablets. Supplies will be depleted nearly immediately from the ensuing nuclear-related panic.

(jump down to my recommendation)

Radioactive fallout, from powerplants or weapons, can travel long distances. Almost all of the thyroid cancer from Chernobyl took place more than 30 miles from the reactor.

Thyroid cancer, especially among children, is the most common and dangerous effect from radiation exposure. More than 90% of the cancer at Chernobyl was thyroid related.

KI’s value was demonstrated at Chernobyl. More than 18 million people received the drug, and all were protected. But in areas where KI was not available, thyroid damage, including cancer, among children spiked to epidemic rates. All preventable.

~ from the mfgr, Anbex

How iOSAT Potassium Iodide Tablets Protect…

The active ingredient in iOSAT tablets is potassium iodide (KI). It is a form of highly soluble iodine. After taking the tablet, the body quickly absorbs and stores potassium iodide in the thyroid gland. The potassium iodide saturates the thyroid gland and fills it to capacity.

Why is this important? Because this leaves no room for radioactive iodine (from nuclear fallout) to get into the thyroid gland. The body will reject the radioactive form and excrete it.

What’s the difference between iOSAT tablets and other brands of potassium iodide (KI) tablets?

iOSAT is apparently the only adult full-strength tablet for radiation protection
that has passed all FDA tests for purity, quality, safety, and efficacy.

FDA Approved:

Best Radiation Pills For Nuclear Fallout

FDA Approved 130mg tablets for use in a radiation emergency. Individually sealed tablets. Scored so they can easily be split in half for a 65mg dose (for children).

  • 14 130mg tablets per pack
  • 14 days of protection for adults
  • 28+ days of 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.

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iOSAT (14) 130 mg tablets

iOSAT radiation pills

(FDA approval document)

How Many Radiation Tablets and How Often To Take Them…


Side effects from potassium iodide are extremely rare, but it should not be used by anyone with a known allergy to the drug, or those with nodular thyroid disease. “Use as directed by public health officials”.

Recommendation: Store one pack of 14 tablets per person for every location frequented (home, work, relative’s home, overnight bag, etc..).

iOSAT Potassium Iodide tablets (a.k.a. radiation pills) should be immediately available in the event of a nuclear radiation emergency (attack/fallout/meltdown).

Ideally, the first dose should be taken 2-3 hours BEFORE exposure to be most effective. However, few of us know the time or the hour for if and when “it” may happen. So, as soon as possible afterward – assuming you are or will be in an affected area.

The manufacturer says, “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.”

Radiation Tablets For Children

From Anbex, the FDA-approved manufacturer, “Children under 18 can receive an effective dose from half a tablet. However, KI is known to be very safe for children, so any child over the age of one could take a full tablet with no adverse consequences expected.”

What About The Shelf Life or Expiration Date?

iOSAT Tablets are FDA-approved for 10 years from the date of manufacture and should be stored unopened in a dry environment at room temperature.

[ Read: Does Potassium Iodide Expire? Tablets Shelf Life – Answered ]

[ Read: Gas Mask For Nuclear Fallout ]

[ Read: Radiation Detector Choices ]