Most likely, lithium and zyprexa. Very least, klonopin. It really is individual, and sometimes, it depends on how much you are on, besides, just how you respond to it. Most of everyone I knew had tremors on lithium.
For me, definitely lithium and on zyprexa, and never with klonopin, Zyprexa caused huge weight gain for me from uncontrolled appetite, so my dr. took it off. Without lithium, it also gave me occasional, slight tremors. I was on a low dose of Zyprexa.