May 30, 2012 (Washington D.C.) -- The U.S. Food and Drug Administration is warning consumers and health care professionals about a counterfeit version of Teva Pharmaceutical Industries’ Adderall 30 milligram tablets that is being purchased on the Internet. Adderall, which is approved to treat attention deficit hyperactivity disorders (ADHD) and narcolepsy, is a prescription drug classified as a controlled substance – a class of drugs for which special controls are required for dispensing by pharmacists.