內匹司他鹽酸鹽抑制劑Nepicastat (SYN-117) HCl is an effective and specific inhibitor, which is used for bovine and human dopamine-β-hydroxylase with IC50 of 8.5 nM and 9 nM, respectively.The affinity of Nepicastat for twelve other enzymes and thirteen neurotransmitt