in this respect dopamine resembles the phenyl-alkylamines , such as tyramine , rather than the catecholamines , adrenaline and noradrenaline.if dopamine acts by releasing noradrenaline from adrenergic nerve endings , high concentrations of dopamine could lead to depletion of noradrenaline stores , since synthesis might be unable to keep pace with release .
C0014563
adrenaline
C0028351
noradrenaline