An Evaluation of the Effects of Methylphenidate on Outcomes in Adult Epilepsy Patients.

Purpose. To determine if methylphenidate (MPH) therapy can improve cognition in adult epilepsy patients on multiple antiepileptic drugs (AEDs), we assessed the impact of MPH on seizure activity, quality of life, cognition, and fatigue in patients with a primary diagnosis of localization-related epilepsy.Methods. This was an open-label, nonrandomized 3-month study. MPH (Ritalin) was added to patients' current antiepileptic drug regimens. Outcome measures included seizure activity, select AED serum concentrations, quality of life (via Quality of Life in Epilepsy-89 questions (QOLIE-89)), cognition (via Microcog), and fatigue (via a visual analog scale) at baseline and at monthly intervals for the treatment phase.Results. Eleven patients were enrolled and eight completed this pilot study. Of the eight completing the study, five were seizure-free at baseline and throughout the study. One patient had an increase, one a decrease, and one no change in seizure activity. No serious adverse events were observed. On average, serum AED concentrations changed <10% from baseline to the end of the study. Mean overall QOLIE-89 scores and select domains improved significantly from baseline. All Microcog domains improved from baseline. Fatigue also improved significantly.Conclusions. Adult epilepsy patients received relief from sedation with MPH and showed an improved quality of life, without significant alteration of seizure control.