{"CYP2D6": "Decreased metabolism of venlafaxine to active metabolite O-desmethylvenlafaxine (desvenlafaxine) and decreased O-desmethylvenlafaxine:venlafaxine ratio as compared to normal metabolizers. There is insufficient evidence supporting the clinical impact of the decreased O-desmethylvenlafaxine:venlafaxine ratio in CYP2D6 intermediate metabolizers."}