using the catecholamine cell neurotoxin , 6-hydroxydopamine , the dopamine beta-hydroxylase inhibitor , fusaric acid , and the tryptophan hydroxylase inhibitor , parachlorophenylalanine , the available central stores of noradrenalin or 5-ht were altered , thus allowing separation of the effects of noradrenalin and 5-ht release on dorsal horn cells .
C0007412
catecholamine
C0028351
noradrenalin