my friend has left their meds at home and has been without his zoloft for 4 nights , he is having the usual side effects associated with antidepressant withdrawal, , the foggy headedness and so forth, he takes 200 mg dly. would 75 mg. of venaflaxine help him to feel better until he gets back to his home and meds?I thought pos. due to them both being seatonin re-uptake inhibiters, i do know that venlafaxine effets another chem in the brain as well