Like with any drug changes....their is always a period of adjusting that has to happen. My pdocs increased my Lamictal dosages like 10 mg a week...and so is weaning the same. One time I couldn't jump to 400 because it was too big from 375 (made me spacey). This time we went by 10's and I feel fine.

And you are right....I'd rather do one drug at a time in small doses to keep the ratio intact. Sometimes being stabile is bland because our normal is the topsy turvy!