Lamotrigine, sold as the brandname Lamictal among others, is an anticonvulsant medication used to treat epilepsy and bipolar disorder. For epilepsy, this includes focal seizures, tonic-clonic seizures, and seizures in Lennox-Gastaut syndrome. In bipolar disorder, it is used to treat acute episodes of depression, rapid cycling in bipolar type II, and prevent recurrence in bipolar type I... Wikipedia

Manufacturer's Website: Not Available

Average retail cost: $667/month

Mesuximide (or methsuximide, methosuximide) is a succinimide anticonvulsant medication. It is sold as a racemate by Pfizer under the tradenames Petinutin (Switzerland) and Celontin (United States)... Wikipedia

Manufacturer's Website: Not Available

Average retail cost: $1,193/month