"i don&#039;t review medicines often, but thought this might be valuable. love this medicine, been on everything, like most of us. i take it as monotherapy for bipolar ii. no bad side effects. when first started, i had a headache for a few days. that went away completely and now it helps prevent them. i also tire a little more upon exertion, but not too much. i feel slightly shaky, but even that has improved. in the beginning i had slightly restless sleep, but now have great sleep, with pleasant dreams. i feel normal, calm, happy and stable. i have never felt this way. definitely not manic at all. i have not gained or lost weight. i have no nausea and my cognition is good. i hope this helps. give this medicine a try."