<prompt> Tianeptine acts by -MAO inhibitorSerotonin uptake inhibitorSerotonin uptake enhancer5-HT agonist  <response>: Mechanism of action of important atypical antipsychotics Tianeptine amineptine Serotonin uptake enhancerTrazodone α-blocking weak 5-HT antagonistic action.Venalafaxine Duloxetine serotonin and noradrenaline reuptake inhibitor SNRI. 