Potassium iodide tablets are sold for over $398 for 14 pills

and the price tag went up from $21 to $398 in less than a week on Amazon; it seems that people are buying all of it. Suppliers see big demands in the US see pressdemocrat, Northern Californians have rushed to buy KI see KCRA

See Wikipedia for the full article and here are some passages: In most countries, table salt is iodized. Iodide is required for the essential thyroxin hormones produced by and concentrated in the thyroid gland 1.1 mg per day is recommended: "The daily Dietary Reference Intake recommended by the United States Institute of Medicine is between 110 and 130 µg for infants up to 12 months, 90 µg for children up to eight years, 130 µg for children up to 13 years, 150 µg for adults, 220 µg for pregnant women and 290 µg for lactating mothers.^[32] The Tolerable Upper Intake Level (UL) for adults is 1,100 μg/day (1.1 mg/day)."

"Related to its dietary use, radioactive iodine is a potential component of nuclear fallout, and a dangerous one due to the thyroid gland's propensity to concentrate iodine from the bloodstream. For this reason if people are expected to be exposed to a large dose of radioactive iodine, they may be instructed to take non-radioactive potassium iodide tablets. The typical adult dose is one 130 mg tablet per 24 hours. By ingesting a large amount of non-radioactive iodine, the proportion of radioactive iodine taken into the thyroid gland may be minimized. This is one way to try to mitigate the health impact of exposure to fallout."