analysis of the radioactive metabolites of the two isomers of noradrenaline after administration of mixed doses of the labelled substances showed that a significantly higher proportion of ( + ) -noradrenaline was metabolized to normetanephrine than of ( - ) -noradrenaline , in the whole mouse , rat heart and rat brain .
C0028385
normetanephrine
C0028351
noradrenaline