normetanephrine


normetanephrine

 [nor-met″ah-nef´rin] metabolite of norepinephrine excreted in the urine and found in certain tissues.

nor·met·a·neph·rine

(nōr'met-ă-nef'rin), A catabolite of norepinephrine found, in the serum, urine and some tissues, resulting from the action of catechol-O-methyltransferase on norepinephrine; has no sympathomimetic actions. Used in the diagnosis of pheochromocytoma.