biogenic amines and polyamines metabolic pathway amine neurotransmitter metabolic pathway catecholamine metabolic pathway PW:0000443 Those metabolic reactions involved in the synthesis, utilization and/or degradation of catecholamines - chemical compounds derived from tyrosine. Epinephrine, norepinephrine and dopamine are among the most abundant and are produced primarily from the adrenal medulla and the postganglionic fibers of the sympathetic nervous system. catecholamine metabolic process pathway