Analysis of data from more than 38,000 families suggests that maternal use of the popular antidepressant, Wellbutrin (bupropion), during pregnancy correlates with a 3-fold greater risk of ADHD in children exposed to the drug in utero. This study should not be taken as proof that bupropion causes ADHD. But author Dr. Roberto Figueroa says doctors need to be a lot more cautious with this, and any other drug that crosses the placenta.