depression
"Saying goodbye to Wellbutrin. Sadly I have to come off this medicine after 2 years.  It worked well for me, my weight went down and my sex drive went up.  However, insomnia got the best of me.  I could never get more than 4 hours of sleep a night and 6 with an Ambien.  The lack of sleep is taking a toll on me sadly. I recommend this medicine and hope you don't have the sleep issues that I did."