in this study , it has been shown that inhibition of phenylethanolamine-n-methyltransferase selectively decreases tissue levels in the hypothalamus and in vivo release of adrenaline , while monoamine oxidase inhibition and antagonism of alpha 2-adrenoceptors increases the release of both adrenaline and noradrenaline .
C0014563
adrenaline
C0028351
noradrenaline