I have Bipolar I, and have been experiencing a great deal of relief
from Lamictal/Lamotrigine for several years. However, my psychiatrist is starting to raise the dose, and I don't know why. I haven't been with this psychiatrist for very long. I was on the usual dose of 200mg/day; then, she raised it to 400mg/day. I'm not sure I felt much better from raising it, but it's possible, so I wasn't worried.
Now, though, she wants to raise it to 600mg/day.