Carbamazepine is used alone or with other medications in the treatment of certain types of seizures. Carbamazepine also is used to treat trigeminal neuralgia (a condition that causes facial nerve pain) and is an anticonvulsant that works by reducing abnormal electrical activity in the brain. Carbamazepine is available as a tablet, a chewable tablet, an extended-release tablet, an extended-release capsule, and a suspension (liquid) to take by mouth. Carbamazepine has been studied related to chemotherapy-induced nausea and vomiting (CINV) and peripheral neuropathy.

http://www.nlm.nih.gov/medlineplus/druginfo/meds/a682237.html