depression
"I started taking Wellbutrin six years ago. I'm still taking it.  It just works, I don't really know how to explain the way I feel except much calmer, less agitated, less sad. I thought I didn't need it any longer because I felt so good for many years and tried going off of it but after about 3-4 weeks, I felt just as I had prior to ever taking it. So, I never have any plans of going off it."