Stimulant DrugsFDA recommended that such drugs include a "black box" warning about heart risks. Stimulant drugs (Adderall, Adderal XR, Strattera, Ritalin) used to treat ADHD have made the headlines recently. In a government sponsored study reviewing 64 ER visits between. August 2003 and 2005, there were 188 events associated to unintentional use of the drugs, half of them children. The survey was prompted by reports of side effects among the estimated 3.3million children and 1.5 million adults taking these drugs. Twenty-five deaths were linked to ADHD drugs, 19 of them involving children, from 1999 to 2003. In addition, there were 54 other serious heart problems including heart attacks and strokes. In February 2006, the advisory committee of the FDA recommended that such drugs include a "black box" warning about heart risks.