An Open-Label Extension Study to Evaluate the Safety and Effectiveness of RWJ 333369 in Patients With Epilepsy

Inclusion Criteria: * In order to enter the open label extension, the patient must have completed Study 333369EPY-2001. Exclusion Criteria: * Patients who have seizures that cannot be quantitated accurately * patients with a history of nonepileptic seizures, serious systemic disease, progressive neurologic disorder, a major psychiatric disorder, status epilepticus in the past 3 months, vagal nerve stimulation discontinuation within the past 3 months * patients with a history of drug or alcohol abuse within the past 2 years * patients currently taking felbamate, vigabatrin, or tricyclic antidepressants * and female patients who are pregnant or nursing.