UNITED STATES - JANUARY 19: Ten milligram tablets of the hyperactivity drug, Adderall, made by Shire Plc, is shown in a Cambridge, Massachusetts pharmacy Thursday, January 19, 2006. Shire Plc, the U.K.'s third-largest drugmaker, said it settled a patent-infringement lawsuit against Impax Laboratories Inc. over its best-selling drug, Adderall XR, used to treat hyperactivity. (Photo by Jb Reed/Bloomberg via Getty Images)
