It’s only fair to share… Iobenguane I 131 FDA approves first treatment for rare adrenal tumors The U.S. Food and Drug Administration today approved Azedra (iobenguane I 131) injection for intravenous use for the treatment of adults and adolescents age 12 and older with rare tumors of the adrenal gland (pheochromocytoma or paraganglioma) …