Venlafaxine
"I started on Venlafaxine several months ago -- went from 37.4 to 75 to150mg. This was situational, as we had lost our 34-year old daughter several years ago in an extremely traumatic accident.   When I was taking 150 mg., I felt less anxious and depressed but foggy-headed, and my emotions have been blunted.  Over a short period of time, I experienced excruciating headaches, sleepiness, dry mouth, constipation, bizarre dreams, and felt detached from myself.  Under the guidance of my APRN, I've been decreasing the dosage.  The weaning process has been difficult, and my memory is terrible.  I have now weaned to 37.5 mg. and will stay at this dose for a while. I have always been extremely sensitive to prescription meds; lower dose makes sense."