ADHD drugs cut risk of drug abuse, smoking

According to a recent study, ADHD drugs cut the risk of drug abuse and smoking in teenage girls:

Wilens and colleagues studied 140 girls with ADHD aged 6 to 18 — 94 percent of whom were taking stimulant medication — and 120 girls without ADHD. The girls periodically had psychiatric evaluations over five years.

The researchers wanted to see if treating girls with ADHD might increase the risk of smoking and substance abuse. Instead, it lowered the risk.