Study shows St. John's wort ineffective on ADHD

KENMORE, Wash. A study published in the Journal of the American Medical Association has shown that St. John’s wort is no more effective than a placebo at treating attention-deficit hyperactivity disorder, also known as ADHD.

Researchers gave St. John’s wort and placebo pills to 54 children aged 6 to 17 in the Seattle area. The children’s ADHD symptoms did not improve significantly.

Bastyr University, in Kenmore, Wash., led the study. Researchers from the University of Washington and Seattle’s Children’s Hospital & Regional Medical Center also participated.