<unk>  (Tonerg) is an antidepressant and anxiolytic drug which was introduced in Italy in 1997 for the treatment of depressive and maladaptive syndromes. But it was discontinued in Italy (according to Martindale). Originally believed to function as a prodrug to GABA,<unk>  is now believed to act via its inhibitory effects on corticotropin-releasing factor (CRF).
Pivagabine
Ezogabine
Retigabine
Tiagabine
Ethosuximide
Brivaracetam
Mesuximide
Methsuximide