My pdoc upped it to 500 mg (haven't updated my signature), said he might go to 600 if he sees no improvement in 2 weeks, or keep me on 500 mg until stable, titrate down to 400 mg and even down to 300 mg since I did well with that amount for quite a long time. Time will tell. Are you on Lamictal as a mood stabilizer? That's helped me too; sometimes that one is upped when I start getting manicky too. Talk to your pdoc and see if anything can be done before it gets out of hand.