Iobenguane I-131

**Semantic type:** Indicator, Reagent, or Diagnostic Aid|Pharmacologic Substance

**Definition:** An I 131 radioiodinated synthetic analogue of the neurotransmitter norepinephrine. Iobenguane localizes to adrenergic tissue and, in radioiodinated forms, may be used to image or eradicate tumor cells that take up and metabolize norepinephrine.

**Synonyms:** - (131)I-MIBG - 131I-MIBG - I 131 Meta-iodobenzylguanidine - I-131 Metaiodobenzylguanidine - IOBENGUANE I-131 - Iobenguane (131I) - Iobenguane I 131 - Iobenguane I 131 - Iodine I 131 Metaiodobenzylguanidine - MIBG I-131 - Raiatt MIBG-I 131 - iodine I 131 metaiodobenzylguanidine