5-HT Receptors

Vilazodone acts as a serotonin reuptake inhibitor (IC50 = 0.5 nM) and 5-HT1A receptor partial agonist (IC50 = 0.2 nM; IA = ~60-70%).

Norfluoxetine is an active metabolite of the antidepressant fluoxetine that inhibits serotonin uptake with a pKi value of 7.35.1 The S-enantiomer of norfluoxetine has 20-times higher serotonin reuptake blocking potency than the R-enantiomer (pKis = 7.86 versus 6.51, respectively).

Levomilnacipran HCl is a selective serotonin and norepinephrine reuptake inhibitor.

Asenapine hydrochloride inhibits adrenergic receptor (α1, α2A, α2B, α2C) with Ki of 0.25-1.2 nM and also inhibits 5-HT receptor (1A, 1B, 2A, 2B, 2C, 5A, 6, 7) with Ki of 0.03-4.0 nM.

MCI-225 is a selective NA reuptake inhibitor with 5-HT3 receptor antagonism.