dopamine β-monooxygenase

Zamicastat (BIA 5-1058) is an inhibitor of dopamine β-hydroxylase (DBH) and a concentration-dependent dual inhibitor of P-gp and BCRP, with IC50 values of 73.8 μM and 17.0 μM, respectively.

Nepicastat hydrochloride (RS-25560-197 hydrochloride) 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 neurotransmitter receptors is negligible.

Hypericin (Cyclosan) is a natural anthraquinone compound, an extract of Hypericum perforatum, which inhibits PKC, MAO, dopamine-beta-hydroxylase, reverse transcriptase, telomerase, and CYP, etc. Hypericin exhibits antimicrobial, antiviral, antitumor, and antidepressant activities.

Guanoclor (VATENSOL) (INN), also known as guanochlor, is a sympatholytic drug. It is known to bind to non-adrenergic sites in pig kidney membranes.