Which medications in the drug class Iodides are used in the treatment of Thyroid Storm?

Updated: Mar 16, 2020
  • Author: Madhusmita Misra, MD, MPH; Chief Editor: Robert P Hoffman, MD  more...
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Answer

Iodides

Iodides inhibit the release of TH from the thyroid gland. Precede iodide administration with thionamides by at least 1 hour to prevent increased intrathyroidal TH synthesis. Iodinated radiographic contrast dyes that contain ipodate (Oragrafin) or iopanoic acid (Telepaque) have also been used and effectively prevent conversion of T4 to T3. However, their utility in childhood thyroid storm is untested. Another benefit of these radiocontrast agents is the once-daily dosing regimen, as opposed to 3-4 daily doses with iodine-containing oral solutions. Currently, these radiocontrast agents are no longer available in the United States. Lithium carbonate may be used if the patient is hypersensitive to iodine.

Potassium iodide, saturated solution (Pima, SSKI, Thyro-Block)

This agent is used to inhibit TH release from the thyroid gland. One mL of SSKI contains 1 g of potassium iodide or 750 mg of iodide (ie, approximately 50 mg iodide/drop and 15 drops per mL). Because of the viscosity, SSKI comes as 15 drops per mL rather than the usual 20 drops per mL.

Strong iodine (Lugol Solution)

Contains 100 mg potassium iodide and 50 mg iodine; provided 8 mg iodide/drop, 20 drops per ml.


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