Bupropion
"I was prescribed 100mg of Wellbutrin for my light depression and anxiety.  After 10 days I became so irritable and dizzy that I asked to stop taking it for fear that I wouldn't be able to work and may have a full-blown panic attack.  I had taken it 2 years before in combination with Cymbalta and it worked great.  Besides making me feel worse than mildly depressed this time, I also had numerous side effects like ringing ears, slight nausea, and dry mouth.  I have had no sexual side effects (55 yo male)."