They have used it in Europe for over a decade. It works against depression as well as pharmaceutical antidepressants by clinical trial. It is available in chain pharmacies like Eckerds and Wal-Mart. It helps me deal with the physical effects of stress like back pain and indigestion. It helps a friend with REAL depression which is part of Post Traumatic Stress Disorder for her.
Information is available on the net.
Has been tested in medical trials just like a pharmaceutical drug. Check it out.