depression
"This was the 5th med I tried for anxiety/depression and it changed my life.  After only a week or so, I laughed again.  It gave me my life back.  Had to ween off, for about a year no insurance and it's kinda expensive.  Serzone, then nefazodone, was a miracle for me.  No side effects except a little nausea in the morning if I didn't eat something first, then that went away."