Antiepileptic drugs are medications used to prevent seizures and manage epilepsy. There are various synonyms for the term antiepileptic drug. These include anticonvulsant medication, seizure medication, epilepsy medicine, and antiseizure drugs. These drugs work by reducing the abnormal electrical activity in the brain that causes seizures and can be used to treat other conditions such as bipolar disorder and nerve pain. Some commonly prescribed antiepileptic drugs include carbamazepine, valproic acid, phenytoin, and levetiracetam. It is important to follow the instructions of one's doctor and take these drugs exactly as prescribed, as they can have serious side effects if not used properly.