Iodide I-131: uses, dosing, side effects & brands

It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run iodide i-131 against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.

We track 2 iodide i-131-containing products in the U.S.: Sodium Iodide I 131 and Iodotope. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.

Across the brands we track, iodide i-131 is currently marketed as capsule and solution, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.

We do not currently list a generic-labelled iodide i-131 product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.

The FDA's Enforcement database lists 1 recall record whose product description mentions iodide i-131. The most recent: Gelatin Capsule Pack for use with the Sodium Iodide I-131 Kit (containing 5 empt… (Feb 19, 2026). A recall applies to specific lots, not to the drug as a whole — check the record for the affected lot numbers.