Iobenguane I-123

**Semantic type:** Pharmacologic Substance

**Definition:** An iodine (I) 123 labeled aralkylguanidine norepinephrine analogue used as a diagnostic imaging tracer. Iobenguane, structurally related to norepinephrine, functioning as a false substrate of norepinephrine, and is taken up and localized in the granules of pre-synaptic adrenergic neurons. When labeled with I-123, this agent is useful for the imaging of neuroendocrine tissues and tumors.

**Synonyms:** - 123I-MIBG - 123I-Metaiodobenzylguanidine - AdreView - I-123-MIBG - IOBENGUANE I-123 - Iobenguane (123 I) - Iobenguane I 123 - Iodine I 123-Metaiodobenzylguanidine - MIBG I-123 - iobenguane I 123