Lisdexamfetamine dimesylate improves processing speed and memory in cognitively impaired MS patients: a phase II study. Morrow SA, Smerbeck A, Patrick K, Cookfair D, Weinstock-Guttman B, Benedict RHB J Neurol. 2012 Sep 23. Epub 2012 Sep 23. PMID: 23001556. Abstract CommentRecommendBookmarkWatch