Sept. 28, 2011 - More teens are receiving prescription stimulants to treat symptoms of their attention deficit hyperactivity disorder (ADHD).

One in 10 reports abusing prescription stimulants and tranquilizers, and 1 in 11 has abused cough medication.

Its report simultaneously described a mounting dependence on prescription stimulants by Americans and on tranquilizers by Europeans.

Farah had just finished a paper in which she reviewed the evidence on prescription stimulants as neuroenhancers from forty laboratory studies involving healthy subjects.

In the show, Sobieski's character is accused of using prescription stimulants.

Abuse of prescription stimulants is higher amongst college students than non-college attending young adults.

Many parents of children with attention deficit disorder have turned to alternative medicine in place of, or in addition to, prescription stimulants like Ritalin.

"What we don't want to do is to think that [undiagnosed] ADHD is the primary reason why people are using prescription stimulants nonmedically," Arria says.

Other researchers have found even higher rates: a 2002 study at a small college found that more than thirty-five per cent of the students had used prescription stimulants nonmedically in the previous year.

(He recently stopped taking Provigil every day, replacing it with another prescription stimulant.)