Sustained-release fampridine (4-aminopyridine) in multiple sclerosis: efficacy and impact on motor function.

Objective: The aim of this study was to determine the efficacy of sustained-release fampridine (4-aminopyridine) in veterans with multiple sclerosis (MS) with limited ambulatory ability, and its impact on motor function in an outpatient setting.

Design: Retrospective.

Setting: Tertiary referral center [Veterans Affairs (VA) Medical Center].