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iOSAT Potassium Iodide

130 mg, 14 tablets
Item# 30525

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  • iOSAT Potassium Iodide
  • 130 mg, 14 tablets
  • Item Catalog Number: 30525

Following the meltdown at Three Mile Island nuclear plant in 1979, ANBEX developed iOSAT for protection from an accidental or terrorist related release of radioactive iodine from a nuclear power plant or nuclear weapon. iOSAT received its approval from the US Food and Drug Administration in 1982, and is one of the few tablets for radiation blocking which may legally be sold in the US.

iOSAT contains potassium iodide, a specific blocker of thyroid radio-iodine uptake. When properly ingested, potassium iodide travels to the thyroid gland and staturates it with iodine. It therefore blocks radioactive iodine from entering the thyroid gland.

These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.


Drug Facts

Active Ingredients (in each tablet)



Potassium iodide 130 mg


Thyroid blocking

Helps prevent radioactive iodine from getting into the thyroid gland during a nuclear radiation emergency. Use along with other emergency measures recommended by public officials.

Allergy alert: Iodine may cause an allergic reaction with one or more of the following symptoms:

  • shortness of breath or wheezing
  • swelling
  • skin rash
  • trouble breathing, speaking or swallowing
  • fever and joint pain
Do not use if you have
  • ever had an allergic reaction to iodine
  • nodular thyroid disease with heart disease
  • hypocomplementemic vasculitis
  • dermatitis herpetiformis
Stop use and ask a doctor if you have
  • allergic reaction. Get medical help right away if you have trouble breathing, speaking or swallowing; shortness of breath; wheezing; swelling of the mouth, tongue or throat; or rash.
  • irregular heartbeat or chest pain. Get medical help right away.
  • swelling of the hands or feet, fever, or joint pain.
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
  • use as directed by public officials in the event of a nuclear radiation emergency
  • do not take more than 1 dose in 24 hours
  • tablets can be whole or crushed and mixed in milk, baby formula, water, orange juice, flat soda like cola, or raspberry syrup.

The liquid mixture should be given to infants, young children, and others who cannot swallow tablets; see consumer package insert on how to make a liquid mixture.

Adults over 18 years

1 tablet (whole or crushed) daily (130 mg)

children over 12 years to 18 years who weigh at least 150 pounds

1 tablet (whole or crushed) daily (130 mg)

children over 12 years to 18 years who weigh less than 150 pounds 1/2 tablet (whole or crushed) daily (65 mg)

children over 3 years to 12 years

1/2 tablet (whole or crushed) daily (65 mg)

children over 1 month to 3 years

32.5 mg daily as directed in the consumer package insert
birth to 1 month 16.25 mg daily as directed in the consumer package insert

  • If pregnant, breastfeeding, have a baby up to 1 month of age, or have thyroid disease (except nodular thyroid disease with heart disease), take as directed above and contact a doctor as soon as possible.
Other information
  • store at 20-25° C (68-77° F)
  • keep dry and foil intact
  • protect from light
  • do not throw away consumer package insert
Inactive ingredients
magnesium stearate, microcrystalline cellulose, silica gel, sodium thiosulfate


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