Study on the safety of Polygala tenuifolia Willdenow root extract powder (BT-11) in young person aged from 9 to 19 years old.

Ethnopharmacological Relevance: Polygala tenuifolia Willdenow root extract (BT-11) has beneficial effects on central nervous system disorders in human. The safety of BT-11 should be elucidated in younger person further.

Aim Of The Study: To evaluate the safety of BT-11 in human aged from 9 to 19 years old.