Mesuximide is an succinimide

Succinimide

Succinimide is a cyclic imide with the formula C4H5NO2. It is used in a variety of organic syntheses, as well as in some industrial silver plating processes.-Succinimides:...

 anticonvulsant

Anticonvulsant

The anticonvulsants are a diverse group of pharmaceuticals used in the treatment of epileptic seizures. Anticonvulsants are also increasingly being used in the treatment of bipolar disorder, since many seem to act as mood stabilizers, and in the treatment of neuropathic pain. The goal of an...

 medication. It is sold as a racemate by Pfizer

Pfizer

Pfizer, Inc. is an American multinational pharmaceutical corporation. The company is based in New York City, New York with its research headquarters in Groton, Connecticut, United States...

under the tradenames Petinutin (Switzerland) and Celontin (United States). The therapeutic efficacy of methsuximide is largely due to its pharmacologically active metabolite, N-desmethylmethsuximide, which has a longer half-life and attains much higher plasma levels than its parent.