class="Serp__item__snippet--34vQF">Adult: Initially, 300 mg on the 1st day, 300 mg bid on the 2nd day and 300 mg tid on the 3rd day. Thereafter, may increase dose until effective antiepileptic control is achieved. Usual maintenance range: 0.9-3.6 g daily; daily dose to be taken in 3 equally divided...