Bupropion
"I  started  Wellbutrin ER a few months ago for depression. I had no energy and wanted to do nothing.  It has helped so much with the depression but my hands tremor.  I tried cutting back to once a day and couldn't tell much difference in the tremors. I asked my doctor to give me the XR (150mg)  so that I could take it just once a day. I  felt like I was going to jump out of my skin. I could even feel my lips quivering.  I like that it makes me feel better but don't like the tremors. I can't find anything documented as to whether they will go away in time or continue as long as I take it. I haven't taken it today and I have no tremors."