April 30, 2017
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Sodium Iodide I 131

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Sodium Iodide I 131

Sodium Iodide I 131 Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 3/05/2016

Sodium Iodide I 131 is a radioactive drug used in performance of the radioactive iodide (RAI) uptake test to evaluate thyroid function. Diagnostic doses of Sodium Iodide I 131 may also be employed in localizing metastases associated with thyroid malignancies. Common side effects of Sodium Iodide I 131 include nausea, vomiting, chest pain, rapid heart rate, itching skin, rash, and hives.

Dosing of Sodium Iodide I 131 ranges widely from 5 to 1000 microcuries, depending on the procedure being performed. Sodium Iodide I 131 may interact with other drugs. Tell your doctor all medications and supplements you use. It is unknown if Sodium Iodide I 131 Diagnostic Capsules can harm a fetus when administered to a pregnant woman or can affect reproduction capacity. During pregnancy, Sodium Iodide I 131 should be used only if prescribed. Sodium Iodide I 131 passes into breast milk. Breastfeeding while using Sodium Iodide I 131 is not recommended.

Our Sodium Iodide I 131 Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Sodium Iodide I 131 FDA Prescribing Information: Side Effects
(Adverse Reactions)


Although rare, reactions associated with the administration of iodine containing radiopharmaceuticals for diagnostic use include, in decreasing order of frequency, nausea, vomiting, chest pain, tachycardia, itching skin, rash and hives.

Read the entire FDA prescribing information for Sodium Iodide I 131 (Sodium Iodide I 131 Capsules)

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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