Inhibition of norepinephrine biosynthesis at the dopamine-beta-hydroxylation stage.
D004298:Dopamine; D004798:Enzymes; D006899:Mixed Function Oxygenases; D009638:Norepinephrine / Q000096:biosynthesis*
D004798:Enzymes; D006899:Mixed Function Oxygenases; D004298:Dopamine; D009638:Norepinephrine