My wife is taking five 500 mg keppra pills per day. She takes 2 in AM, 1 Noon, 2 PM. Prescription calls for six pills per day 2, 2, 2. She reduced to five because she has developed an itching rash condition. Prior to taking keppra she took three 100 mg dilantin per day 1, 1, 1. In addition she takes 64 mg of pheno-barb 3 x per day. Her breakthrough seizures have been less under keppra but thinks she would like to go back on dilantin and increase dosage to 200 mg 3 x per day. Any thoughts? Prior to that she was on dilantin (100 mg 3 x per day). She would still have breakthrough seizures.