There are, of course, numerous YouTube videos on Potassium iodide. (KI)
Wikipedia has a comprehensive article Potassium iodide.
I though maybe I should stock up on the stuff, Thyroid
protection due to nuclear accidents and emergencies,
they say the WHO recommends against the pill for folks over 40 unless inhaled radiation is very serious.
"In 1982, the U.S. Food and Drug Administration approved potassium iodide to protect thyroid glands from radioactive iodine involving accidents or fission emergencies. In an accidental event or attack on a nuclear power plant, or in nuclear bomb fallout, volatile fission product radionuclides may be released. Of these products, 131I is one of the most common and is particularly dangerous to the thyroid gland because it may lead to thyroid cancer. By saturating the body with a source of stable iodide prior to exposure, inhaled or ingested 131I
tends to be excreted, which prevents radioiodine uptake by the thyroid. The protective effect of KI lasts approximately 24
hours. For optimal prophylaxis, KI must be dosed daily until a risk of significant exposure to radioiodine by either inhalation or ingestion
no longer exists.
Emergency 130 milligrams potassium iodide doses provide 100
mg iodide (the other 30 mg is the potassium in the compound), which is roughly 700 times larger than the normal nutritional
need (see recommended dietary allowance) for iodine, which is 150 micrograms (0.15 mg) of iodine (as iodide) per day for an adult.
The tablet is actually 160 mg. 130 mg of which is potassium iodide and 30 mg being excipients such as binding agents.
Potassium iodide cannot protect against any other causes of radiation poisoning, nor can it provide any degree of protection against dirty bombs that produce radionuclides other than radionuclides of iodine. See fission products and the external links for more details concerning radionuclides.
WHO Recommended Dosage for Radiological Emergencies involving radioactive
|Age||KI in mg per day|
|Over 12 years old||130|
|3 – 12 years old||65|
– 36 months old||32|
|< 1 month old||16|
The potassium iodide in iodized salt is insufficient for this use. A likely lethal dose of salt (more than a kilogram) would be needed to equal the potassium iodide in one tablet.
The World Health Organization does not recommend KI prophylaxis for adults over 40 years, unless inhaled radiation dose levels are expected to threaten
thyroid function, because the KI side effects increase with age and may exceed the KI protective effects; "...unless
doses to the thyroid from inhalation rise to levels threatening thyroid function, that is of the order of about 5 Gy. Such radiation doses will not occur far away from an accident site."
The U.S. Department of Health and Human Services restated these two years later as "The downward KI (potassium
iodide) dose adjustment by age group, based on body size considerations, adheres to the principle of minimum effective dose.
The recommended standard (daily) dose of KI for all school-age children is the same (65 mg). However, adolescents approaching
adult size (i.e., >70 kg [154 lbs]) should receive the full adult dose (130 mg) for maximal block of thyroid radioiodine
uptake. Neonates ideally should receive the lowest dose (16 mg) of KI."
SSKI (i.e., the solution of KI rather than tablets) may be used in radioiodine-contamination emergencies (i.e.,
nuclear accidents) to "block" the thyroid's uptake of radioiodine, at a dose of two drops of SSKI per day for an
adult. This is not the same as blocking the thyroid's release of thyroid hormone, for which the adult dose is different (and
is actually higher by a factor of 7 or 8), and for which KI anti-radiation pills (not a common medical treatment form of KI)
are not usually available in pharmacies, or normally used in hospitals, or by physicians. Although the two forms of potassium
iodide are completely interchangeable, normally in practice the SSKI solution, which is the historical medical form of high
dose iodine, is generally used for all medical purposes save for radioiodine prophylaxis. For protection of the thyroid against
radioiodine (iodine-131) contamination, the convenient standard 130 mg KI pill is used if available. As noted, the equivalent
two drops of SSKI may be used for this purpose, if the pills are not available."
Revelation 22 is so beautiful and comforting:
And he shewed me a pure river of water of life, clear as crystal, proceeding out of the throne of God and of the Lamb.
2 In the midst of the street of it, and on either side
of the river, was there the tree of life, which bare twelve manner of fruits, and yielded her fruit every month: and the leaves
of the tree were for the healing of the nations.
3 And there shall be no more curse: but the throne of God and of the Lamb shall be in it; and his servants
shall serve him:
they shall see his face; and his name shall be in their foreheads.
5 And there shall be no night there; and they need no candle, neither light of the
sun; for the Lord God giveth them light: and they shall reign for ever and ever.
6 And he said unto me, These sayings are faithful and true: and the
Lord God of the holy prophets sent his angel to shew unto his servants the things which must shortly be done.
7 Behold, I come quickly: blessed is he that keepeth
the sayings of the prophecy of this book.
And I John saw these things, and heard them. And when I had heard and seen, I fell down to worship before the feet of
the angel which shewed me these things.
Then saith he unto me, See thou do it not: for I am thy fellowservant, and of thy brethren the prophets, and of them
which keep the sayings of this book: worship God.
10 And he saith unto me, Seal
not the sayings of the prophecy of this book: for the time is at hand.
11 He that is unjust, let him be unjust still: and he which is filthy, let him be
filthy still: and he that is righteous, let him be righteous still: and he that is holy, let him be holy still.
12 And, behold, I come quickly; and my reward is with
me, to give every man according as his work shall be.
13 I am Alpha and Omega, the beginning and the end, the first and the last.
14 Blessed are they that do his commandments, that they
may have right to the tree of life, and may enter in through the gates into the city.
15 For without are dogs, and sorcerers, and whoremongers, and murderers,
and idolaters, and whosoever loveth and maketh a lie.
16 I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and
the offspring of David, and the bright and morning star.
17 And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is
athirst come. And whosoever will, let him take the water of life freely.
18 For I testify unto every man that heareth the words of the prophecy of this book,
If any man shall add unto these things, God shall add unto him the plagues that are written in this book:
19 And if any man shall take away from the words of
the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things
which are written in this book.
He which testifieth these things saith, Surely I come quickly. Amen. Even so, come, Lord Jesus.
21 The grace of our Lord Jesus Christ be with you all.