CYP2C19   CYP2D6  
UMs PMs UMs PMs
In transgenic mice disturbance of brain development including smaller hippocampus Decreased depressed mode Higher suicidal risk Higher risk for Parkinson’s disease
In transgenic mice increased anxiety and stress sensitivity Higher score in harm avoidance Increased suicidal behavior Higher impulsivity-related traits and more anxiety prone
  Lower score in cooperativeness Higher perfusion rates in thalamus and hippocampus Better capacity to vigilance and alertness
      Perform better in spatial memory tasks
Table 2: Phenotypes described among subjects being poor metabolizers (PMs) or ultrarapid metabolizers (UMs) for CYP2C19 and CYP2D6 ( For further explanations see text).