Potassium Iodide (KI) Authentic Products

Potassium iodide is a chemical compound, medication, and dietary supplement. As a medication it is used to treat hyperthyroidism, in radiation emergencies, and to protect the thyroid gland when certain types of radiopharmaceuticals are used


Potassium Iodide, KI, 100mg, 120 caps, “Big Family Pack”

Iodine is a building block for the thyroid hormones T3 and T4. It is found mainly in the thyroid gland and is needed to produce thyroids hormones that stimulate the body’s basal metabolic rate. It is important for burning fat and increase energy.

The Department of Health and Human Services has ordered 14 million doses of potassium iodide, the compound that protects the body from radioactive poisoning in the aftermath of severe nuclear accidents, to be delivered before the beginning of February (Click here).

A search of the FedBizOpps website returns no other results regarding the purchase of potassium iodide from any government agency, suggesting that the DHHS bulk buy of the tablets is unprecedented in recent times.  One could argue that you only order 14 million doses of potassium iodide if you have knowledge about a coming nuclear war.

In the news:

Fukushima RADIATION has hit 141 cpm in June on the island of Kauai, Hawaii, while Oahu has turned off their radiation monitors. The radiation has gone up 5x since March 11, 2011.

“In the Fukushima reactor three, which suffered a meltdown, fuel rods containing plutonium perforated the bottom of the containment and embedded themselves in the basement of the building. Just where and how far the plutonium travelled, no one quite knows.”
political commentator Jirou Honzawa

Benefit form our “Big Family Pack” that has 120 vegi caps with 100 mg potassium iodide (KI), each.

One bottle only!

“95% of people are moderate to severely iodine deficient”
– according to Dr. David Brownstein who is a thyroid (and iodine) specialist!

Protects from Radioiodine

Potassium Iodide (KI) is used to protect your thyroid gland against radioactive iodine (131-I) released during a nuclear emergency. It does this by flooding the thyroid with stable, safe iodine, which blocks the absorption of dangerous radioactive iodine.

IOSAT Potassium Iodide 14 Tablets

We don’t know when or if this item will be back in stock.
  • Expiration Date on Product is October 2024 or later

IOSAT Potassium Iodide Tablets September 2024 Expiration Date There are 14 tablets in each package of iOSAT TM , 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 TM tablets as directed by Public Health Officials. 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 1/2 tablet. Children from age one month to 3 years should take 1/4 tablet. And infants less than one month old should take 1/4 tablet. If necessary, children too young to take solid food or unable to swallow a tablet can take iOSAT TM dissolved in a liquid (such as chocolate milk) or in a soft food such as applesauce.iOSAT TM Tablets are FDA approved for seven years and should be stored unopened in a dry environment at room temperature. Each iOSAT TM Tablet provides 24 hours of protection. 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. The iOSAT TM 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. Meets all FDA requirements for potassium iodide as a radiation protective, and is labeled and packaged in accordance with US government guidelines. Has demonstrated all quality controls and passed all FDA requirements for purity, quality, safety, efficacy. Comes full strength (130 mg of potassium iodide per tablet) in accordance with FDA demands for complete thyroid blocking.

IOSAT Potassium Iodide 14 Tablets

You are buying high quality potassium iodide USP/ACS grade crystals 99.9%-101.5%. This is the highest purity and quality in the USA. Made and packaged in USA. Same day ship! CAS# 7681-11-0, F.W. 166.00. For research and Development, lab, or scientific use.
Specifications for this item

What does potassium iodide (KI) do?

The effectiveness of KI as a specific blocker of thyroid radioiodine uptake is well established. When administered in the recommended dose, KI is effective in reducing the risk of thyroid cancer in individuals or populations at risk for inhalation or ingestion of radioiodines. KI floods the thyroid with non-radioactive iodine and prevents the uptake of the radioactive molecules, which are subsequently excreted in the urine.

2.  Can potassium iodide (KI) be used to protect against radiation from bombs other than radioactive iodine, such as radiation from a dirty bomb?

Potassium iodide ( KI) works only to prevent the uptake of radioactive iodine into the thyroid gland. It is not a general radioprotective agent.

3.  Who really needs to take potassium iodide (KI) after a nuclear radiation release?

The FDA guidance prioritizes groups based on age, which is the primary factor for determining risk for radioiodine-induced thyroid cancer.  Those at highest risk are infants and children, as well as pregnant and nursing females because of the potential for KI to suppress thyroid function in the developing fetus and the newborn.  The recommendation is to treat them at the lowest threshold (with respect to predicted radioactive dose to the thyroid).  Anyone over 18 years old and up to 40 years old should be treated at a slightly higher threshold.  Finally, anyone over 40 years old should be treated with KI only if the predicted exposure is high enough to destroy the thyroid and induce lifelong hypothyroidism (thyroid deficiency).

4.  What potassium iodide KI products are currently available? 

Only KI products that are FDA-approved may be marketed legally in the United States.  As of October 2016, these KI products are FDA-approved and are available without a prescription:

  • iOSAT tablets, 130mg, from Anbex, Inc.
  • ThyroSafe tablets, 65mg, from Recipharm AB
  • ThyroShield oral solution, 65mg/mL, from Arco Pharmaceuticals, LLC
  • Potassium Iodide Oral Solution USP, 65mg/mL, from Mission Pharmacal Company

5.  What dosages of potassium iodide (KI) should be taken for specific exposure levels?

FDA recommends the following dosing of KI for thyroid blocking:

Threshold Thyroid Radioactive Exposures and
Recommended Doses of KI for Different Risk Groups

 Predicted Thyroid gland exposure (cGy)KI dose (mg)     Number or fraction of 130 mg tabletsNumber or fraction of 65 mg tabletsMilliliters (mL) of oral solution, 65 mg/mL***
Adults over
40 years
> 500130122 mL
Adults over
18 through 40 years
> 10130122 mL
Pregnant or
Lactating Women
> 5130122 mL
12 through
18 years*

> 5

65½11 mL
Children over
3 years through 12 years
> 565½11 mL
Children 1
month through 3 years
> 532Use KI oral solution**½0.5 mL
Infants birth through 1
> 516Use KI oral solution**Use KI oral solution**0.25 mL

*     Adolescents approaching adult size (> 150 lbs) should receive the full adult dose (130 mg)

**   Potassium iodide oral solution is supplied in 1 oz (30 mL) bottles with a dropper marked for 1, 0.5, and 0.25 mL dosing.  Each mL contains 65 mg potassium iodide.

*** See the Home Preparation Procedure for Emergency Administration of Potassium Iodide Tablets to Infants and Small Children. 

6.  For how long should I take potassium iodide (KI)?

Since KI protects for approximately 24 hours, it should be dosed daily until the risk no longer exists.  Priority with regard to evacuation and sheltering should be given to pregnant females and neonates because of the potential for KI to suppress thyroid function in the fetus and neonate.  Unless other protective measures are not available, we do not recommend repeat dosing in pregnant females and neonates.

7.  Who should not take potassium iodide (KI) or should have restricted use?

Persons with known iodine sensitivity should avoid KI, as should individuals with dermatitis herpetiformis and hypocomplementemic vasculitis, extremely rare conditions associated with an increased risk of iodine hypersensitivity. A seafood or shellfish allergy does not necessarily mean that you are allergic or hypersensitive to iodine. People with nodular thyroid with heart disease should not take KI. Individuals with multinodular goiter, Graves’ disease, and autoimmune thyroiditis should be treated with caution — especially if dosing extends beyond a few days. If you are not sure if you should take KI, consult your healthcare professional.

8.  What are the side effects of potassium iodide (KI)?

Side effects are unlikely when KI is used at the recommended dose and for a short time. The following are possible side effects: 
  • Skin rashes
  • Swelling of the salivary glands
  • “Iodism” (metallic taste, burning mouth and throat, sore teeth and gums, symptoms of a head cold, and sometimes upset stomach and diarrhea)
  • An allergic reaction can have more serious symptoms. These include fever and joint pains; swelling of parts of the body (face, lips, tongue, throat, hands, or feet); trouble breathing, speaking, or swallowing; wheezing or shortness of breath. Severe shortness of breath requires immediate medical attention.

9.  Should I check with my doctor before I take potassium iodide (KI)?

KI is available without a prescription.  However, if you have any health concerns or questions, you should check with your doctor before you take KI.

10.  As a doctor, should I recommend potassium iodide (KI) for my patients who request it?

As with any drug, physicians should understand the risks and benefits of KI before recommending it or prescribing it to patients. We recommend that physicians read our 2001 guidance Potassium Iodide as a Thyroid Blocking Agent in Radiation Emergencies for more information. The FDA guidance discusses the rationale and methods of safe and effective use of KI in radiation emergencies. It specifically addresses threshold predicted thyroid radioiodine exposure for intervention and dosing by age group. The recommendations for intervention are based on categories of risk for thyroid cancer, with the young prioritized because of increased sensitivity to the carcinogenic effects of radioiodine. We also recommend our 2002 guidance KI in Radiation Emergencies—Questions and Answers . This guidance provides answers to questions that FDA has received as state and local governments develop emergency response plans involving the use of KI to protect against the effects of radioactive iodine.

11.  Should I buy potassium iodide (KI) to keep on hand?

KI works best if used within 3-4 hours of exposure. Although FDA has not made specific recommendations for individual purchase or use of KI, the Nuclear Regulatory Commission has contracted to purchase KI for states with nuclear reactors and states that have population within the 10-mile emergency planning zone, e.g., Delaware or West Virginia.

12.  How do I know that potassium iodide (KI) will be available in case of an emergency?

FDA will continue to work with interested pharmaceutical manufacturers to assure that high quality, safe, and effective KI products are available for purchase by consumers, by state and local authorities, and by federal government agencies electing to do so. 

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