Hello Everyone, I need help with lithium. My neuro referred me to a Parkinson Specialist - neuro, who suggested I try lithium carbonate for cramps caused by Sinimet. I started with 600mg after blood tests it was increased to 800mg. This is my 6th day on lithium, 2nd day on higher dose. I have new temors with lithium. Getting a bit nervous waiting for cramping to go away. Is there anyone besides William Harshaw who has tried lithium for cramps. I would really appreciate any group support you can give me. Thank you ........ Barbara Jensen 52/6