Ezogabine (retigabine).

Ezogabine (Potiga; Valeant Pharmaceuticals/GlaxoSmithKline), a potassium channel opener, was approved in June 2011 by the U.S. Food and Drug Administration (F.D.A.) for the adjunctive treatment of partial-onset seizures in adult patients. The same drug was granted marketing authorization for this indication in the European Union in March 2011, where it is known as retigabine (Trobalt).