This case report refers to a patient with PLEDs whose EEGs did not change while on steady levels of phenytoin and phenobarbital, but showed a complete disappearance of these discharges when felbamate was used. This report may serve to remind EEG'ers and epileptologists that the acute use of this drug may be effective in dealing with PLEDs that are often difficult to eliminate. However, physicians must keep in mind the significant risks of using this medication.