Lubazodone (developmental code names YM-992, YM-35995) is an experimental
affinities being for the α1-adrenergic receptor (Ki = 200 nM) and the 5-HT2C receptor (Ki = 680 nM).[1] Lubazodone is structurally related to trazodone and nefazodone, but is a stronger serotonin reuptake inhibitor and weaker as a 5-HT2A receptor antagonist in comparison to them and is more balanced in its actions as a SARI.[1][2] It reached phase IIclinical trials for depression,[3] but development was discontinued in 2001 reportedly due to the "erosion of the SSRITooltip selective serotonin reuptake inhibitor market in the United States".[1]