“…In the first clinical reports of its therapeutic effect, used alone and in combination with other anticonvulsant drugs, it was stated that it was most effective in the treatment of temporal lobe attacks and other types of focal seizure, 5&90yu of patients with such attacks being markedly improved. It was less effective in the control of major seizures ( I , 3,6). There is a lack of sedative effect, but several side effects were observed, the most common being paraesthesiae in the extremities, usually disappearing despite continuation of treatment.…”