Synopsis

Source of validity: Traditional
Rating (out of 5): 1

The blackboard tree, also known as Alstonia scholaris, is primarily used in traditional medicine systems across Asia, including Ayurveda and traditional Chinese medicine. Historically, various parts of the tree have been employed for a variety of ailments, such as respiratory disorders, fevers, and skin diseases. Its use as a remedy for depression is based largely on anecdotal reports and ethnobotanical records rather than on rigorous scientific evaluation. Traditional practitioners believe that extracts from the bark or leaves of Alstonia scholaris can have calming or restorative effects, which may indirectly contribute to alleviating symptoms of depression or nervous disorders.

However, there is limited scientific research specifically investigating the antidepressant properties of blackboard tree extracts. A few preclinical studies have assessed related activities, such as anxiolytic or adaptogenic effects in animal models, but these findings are preliminary and not directly translatable to clinical depression in humans. No large-scale, peer-reviewed clinical trials have validated its efficacy or safety for treating depression. As such, while the use of blackboard tree for depression is justified by tradition, the overall evidence supporting this use is weak, warranting a low evidence rating.

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