"Shire wins U.S. approval for long-acting ADHD drug" by Natalie Grover, Ben Hirschler of ReutersShire received approval for a new long-acting medication named Mydayis. It is the same as Adderall XR (i.e., amphetamine & dextroamphetamine mixed salts) but should last 16 hours, compared to Adderall XR's 12 hours. Read more here.