I'm on 400mg now, which I didn't actually think they go up to. But my psychiatrist put it up to that recently and I trust him - he is the best diagnostitian, and the best at knowing the benefits and side effects of meds that I have had. It took a long time to get up to that level though - about 10 months, including a period in the psych ward in November to lift the dose.

I have been through the whole guineau pig sceanrio in testing through meds for many years and I find that having Lamictal in the meds arsenal has chnaged me so much for the better. I see many good reports about it from Bipolar patients on this and other mental health sites. I hope it works for you too.