ADHD stimulants don’t boost teens’ cocaine risk later

Prescription stimulants are the most commonly misused controlled substance among teens and young adults. Stimulant-related overdose deaths have increased tenfold in the past decade. (Credit: Getty Images)

High school seniors who take prescription stimulants like Ritalin to treat ADHD are no more likely to use cocaine or methamphetamine as young adults than teens who don’t, a new study indicates.

“These findings should be comforting to parents who have teenagers taking stimulants for ADHD, who worry that these medications may lead to use of illicit stimulants like cocaine or methamphetamine as their children enter young adulthood and become more independent,” says lead researcher Sean Esteban McCabe, professor of nursing and director of the Center for the Study of Drugs, Alcohol, Smoking and Health at the University of Michigan.

However, the study also found that teens who misuse prescription stimulants are significantly more likely to use cocaine or methamphetamine as young adults (ages 19-24)—and the frequency of misuse matters:

  • 20% of teens who misused prescription stimulants during high school started using cocaine or methamphetamine in young adulthood
  • 34% of teens who misused prescription stimulants 10 or more times used cocaine or methamphetamine as young adults

Taken together, the findings reinforce the importance of risk-reduction strategies such as monitoring and safely storing stimulant medications, as well as screening adolescents for drug use, including using prescription stimulants on their own, McCabe says.

The study is important, he says, because prescriptions for stimulant medications have greatly increased in the last two decades.

Prescription stimulants are the most commonly misused controlled substance among teens and young adults. Stimulant-related overdose deaths have increased tenfold in the past decade, according to data from the Centers for Disease Control and Prevention.

“Those overdose deaths are driven primarily by illicit stimulants such as cocaine and methamphetamine, calling into question the role that prescription stimulants might play in the initiation of illicit stimulants,” McCabe says. “We were interested in studying this association so we can identify and address drug use before major problems develop.”

Prior research has shown that ADHD is associated with an increased risk for illicit drug use, so the fact that researchers didn’t see an increased risk in teens who used stimulant therapy to treat their ADHD is encouraging.

Researchers used data from more than 5,000 high school seniors between 2005-2017 from the University of Michigan’s Monitoring the Future study, and followed these teens into young adulthood between 2011-2021. The study is a national survey that measures drug and alcohol use and related attitudes among adolescent students nationwide.

The study will appear in JAMA Network Open. Additional coauthors are from Harvard University, Texas State University, and the University of Michigan.

The National Institute on Drug Abuse of the National Institutes of Health and the US Food and Drug Administration funded the work. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Source: University of Michigan