Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Buchu (Agathosma betulina or Barosma betulina), sometimes referred to as "Long Buchu," is a plant native to South Africa whose leaves have been traditionally used in folk medicine. The primary historical use of buchu is as a diuretic and to support urinary tract health, including the bladder. Indigenous Khoisan people and later European settlers utilized buchu infusions or tinctures to help with urinary complaints, bladder irritation, and kidney issues. The traditional rationale is based on the plant’s aromatic oils, particularly diosphenol (also known as buchu camphor), believed to exert mild antiseptic and diuretic effects on the urinary tract.

While there is a long-standing history of use, modern scientific validation for these effects is limited. A few laboratory studies suggest that buchu extracts may have antimicrobial properties, but clinical trials in humans are lacking. The evidence supporting buchu for bladder health or urinary tract support thus remains primarily anecdotal and based on traditional practices, rather than robust scientific research. Regulatory bodies such as the European Medicines Agency (EMA) recognize the traditional use of buchu for minor urinary complaints, but also note the lack of well-controlled clinical studies.

In summary, while traditional use of buchu in supporting the bladder is well-documented, scientific evidence remains minimal, warranting a modest evidence rating.

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