St John's Wort for ADHD

St John's Wort is best known as a treatment for depression but is also one of the most popular complementary treatments for children with Attention Deficit Hyperactivity Disorder (ADHD). A U.S. study of 54 children compared St John's Wort to a placebo in an 8-week trial. By the end of the trial the researchers found that more of the children (51.9% vs 44.4%) in the placebo group had shown an improvement and by a greater amount.

Journal of the American Medical Association 2008; 299:2633-2641