the effects of metanephrine and normetanephrine have been compared with those from equiactive doses of the origin compounds , adrenaline and noradrenaline , on the pressor responses in rat , in order to determine whether their effects are owed , at least partially , to a releasing presynaptic action of the catecholamines in normal animals as well as those pretreated with reserpine , guanethidine and 6-oh-dopamine .
C0028385
normetanephrine
C0028351
noradrenaline