Lamotrigine
"I started this medication after switching from quetiapine for Bipolar 2.  I have so much more energy on this medication, I have lost weight and it has levelled out my mood considerably (my usual mood state is low, but I do cycle a couple of times a year).  During initial titration I had trouble sleeping, dry mouth and digestive bleeding.  But these have lessened over time and I use laxatives and synthetic saliva to ease the side effects.  Overall I'm very happy with this medication."