Agent Boggs of the Drug Enforcement Administration said his agency was concerned that A.D.H.D. drug abuse was on the rise. “We see people abuse it in college and then continue to abuse it nonmedically once they leave,” he said.
Since the drugs have been shown to improve concentration, and not just in people with A.D.H.D., they have become popular among students who are seeking a study aid. And since they can impart a euphoria that users have likened to a cocaine high, the pills are sometimes ground up by people who snort them for a thrill.