What are anticonvulsants tx?

Valproic acid, Carbamazepine, Lamotrigine Lamotrigine (May be effective in treatment of bipolar depression non FDA approved. FDA approved prevent the recurrence of both mania & depression ie maintenance. Well tolerated, except :rash, rarely Stevens—Johnson syndrome (toxic .epidermal necrolysis) minimized by very slow uptitration. Best as add on Mechanism of action: reduces the release of the excitatory glutamate, block calcium channel, block potassium channel