Lamictal (lamotrigine) has had its licence extended to include the treatment of bipolar disorder. Both the tablets and the orodispersible tablets may be used in the prevention of depressive episodes in patients with bipolar I disorder who experience predominantly depressive episodes.
The exact mechanism of action of lamotrigine in bipolar disease is unknown, but the anticonvulsant’s interaction with voltage-gated sodium channels is thought to be important.
Further information: GlaxoSmithKline