RT Journal Article SR Electronic T1 Methylphenidate. An update on extended-release formulations JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 3 OP 7 VO 12 IS 1 A1 Zolezzi, Monica YR 2007 UL http://nsj.org.sa/content/12/1/3.abstract AB Methylphenidate remains the mainstay of pharmacological management in attention deficit hyperactivity disorder (ADHD). Despite having been available for over half a century, methylphenidates original formulation has been modified with the main purpose of extending its duration of action. This article will present a brief review of how these new formulations vary and how these should be selected, considering the evidence available on their effectiveness and on the individual needs of the patient.