Harmane (Harman, Aribine, Aribin, Locuturine, Locuturin, Loturine, Passiflorin, 1-Methylnorharman, NSC 54439) is a common compound in several foods, plants and beverages. Harmane is a selective monoamine oxidase inhibitors with IC50s of 0.5 μM and 5 μM for human MAO A and MAO B, respectively. Harmane also inhibits the apurinic/apyrimidinic (AP) endonuclease activity of the UV endonuclease induced by phage T4.