iodine I 123-metaiodobenzylguanidine
(I-oh-dine … meh-tuh-I-oh-doh-BEN-zul-GWAH-nih-deen)
A drug containing a form of radioactive iodine called I 123 that is used to find certain types of tumors, including pheochromocytomas and neuroblastomas. Radiation from I 123 may help show where cancer cells are in the body. Iodine I 123-metaiodobenzylguanidine is a type of radioconjugate. Also called 123I-MIBG, AdreView, and iobenguane I 123.