Escitalopram
"I recently started lexapro for generalized anxiety disorder, severe panic disorder, and social anxiety.  It has worked wonders for me.  I feel so much better and experience limited anxiety now.  However, I just went up to 20 mg and now I can barely stay awake.  I am tired all of the time and easily could sleep through the day.  It's very difficult for me to get things done and it is getting in the way of my daily activities.  I don't want to stop this medicine because it's working so well, but I am at a loss and don't know what to do."