This study was designed as a randomized, double-blind, placebo-controlled, sequential multiple ascending dose study to assess the safety and pharmacokinetics of supratherapeutic doses of eslicarbazepine acetate in 32 healthy adult male and female subjects, with 8 subjects per treatment group. In each study group, subjects were to receive single doses of eslicarbazepine acetate or placebo once daily for 5 days.