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iodine I-131

A radioactive isotope of iodine with an atomic mass of 131, a half life of eight days, and potential antineoplastic activity. Selectively accumulating in the thyroid gland, iodine I 131 emits beta and gamma particles, thereby killing thyroid cells and decreasing thyroid hormone production.

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Synonym:	131-iodine bound iodide I-131 iodide I-131 iodide, I-131 iodine 131 iodine-131
US brand name:	Iodotope
Foreign brand name:	Iodotrope
Abbreviation:	I 131 I-131

iodine I-131

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