Eric, This is a copy/paste from Lexipro website. Can you dumb this down so that I can understand it and does it have any effect on the seratonin in the GI tract? I know i'm a pain in the butt sometimes, but I read it over and over and I can't grasp it. How SSRIs WorkThe brain chemistry of depression and anxiety is not fully understood. However, a growing body of evidence supports the view that people with these disorders have an imbalance of the brain's neurotransmitters. These are chemicals in the brain that allow nerve cells to communicate. One of these neurotransmitters is serotonin. An imbalance in serotonin may be an important factor in the development of depression and anxiety."Serotonin is released from one nerve cell and passed to the next. In the process, some of the serotonin released is reabsorbed by the first nerve cell. SSRIs block the reabsorption of serotonin into the first nerve cell. It is this blocking action that causes an increased amount of serotonin to become available at the next nerve cell. This is how SSRIs affect the balance of serotonin in the brain." I tried Lexipro 2 years ago and got a D reaction after about a week, and stopped taking it. But I can't find D as a side effect.? I want to be sure when I see my doc later this month that I am requesting the right antidepressent to go with Mikes Tapes.ThanksBrett