Levetiracetam (Keppra) to Improve Chronic Aphasia in Post-stroke Patients.

Levetiracetam 250 mg orally twice daily for 7 days. This will increase to 500 mg oral twice daily for 7 days the following week. If this dose is tolerated, it will then be increased to 750 mg orally twice daily for another 7 days and then increased to 1000 mg orally twice daily for 7 days.

subjects with aphasia will take levetiracetam and we will evaluate their speech, language, and memory in an ABAB design