Quick summary

Buchu (Agathosma betulina) is a South African plant traditionally used for urinary tract and other health issues. Current evidence from modern research is limited, with no strong clinical trial data directly supporting specific medical uses. Some reviews discuss the potential antibacterial and antioxidant properties of herbs including Buchu, but clinical efficacy and safety in humans remain insufficiently studied.

What is it

Buchu, scientifically known as Agathosma betulina, is a shrub native to South Africa. It has a history of traditional use in local medicine, particularly for addressing urinary tract conditions. The plant is part of the Rutaceae family and is known for its aromatic leaves that have been used in herbal preparations.

Traditional uses

Traditionally, Buchu has been used to support urinary tract health, including as a remedy for infections and inflammation. It has also been employed for other health concerns such as digestive issues and as a general tonic. Indigenous practices often involved brewing the leaves as a tea or applying extracts topically.

Active compounds

Buchu contains bioactive compounds that may contribute to its effects, including flavonoids, volatile oils, and phenolic compounds. These constituents have been studied for potential antibacterial, anti-inflammatory, and antioxidant properties.

Potential benefits with evidence levels

  • Potential antibacterial and anti-inflammatory effects relevant to urinary tract infections: Evidence is primarily from preclinical and traditional use sources; no robust clinical trials are currently available. (Saddam M et al., 2026; ‘Buchu’ – Agathosma betulina and Agathosma crenulata: A review, 2008)
  • Source of bioactive compounds potentially useful in nanoparticle synthesis with antimicrobial applications: Demonstrated in vitro and materials science studies without clinical evidence. (Mobarak MH et al., 2026; Rahman S et al., 2024; Green synthesis of ZnO nanoparticles via Agathosma betulina natural extract, 2015)

Side effects

There are no well-documented reports of adverse effects from clinical studies on Buchu in the available data. However, clinical safety data remain limited, and caution is advised.

Drug interactions

No specific evidence regarding drug interactions with Buchu has been identified in the current research. Nonetheless, herbal-drug interactions are a general concern and should be considered during clinical use.

Who should avoid it

Due to lack of safety data, individuals who are pregnant or breastfeeding should avoid Buchu or consult a healthcare professional before use. Also, people with known allergies to plants in the Rutaceae family or other sensitivities should be cautious. Those taking medications should seek medical advice before using Buchu, given the unknown interaction profile.

Evidence limitations

  • No randomized controlled trials or meta-analyses specifically evaluating Buchu (Agathosma betulina) clinical efficacy or safety were identified.
  • Most evidence is extrapolated from traditional use, preclinical studies, or reviews discussing related herbal medicines.
  • Standardization of herbal preparations and dosage is not established.
  • No clinical pharmacokinetic or safety profiles documented in the supplied data.
  • Potential herb-drug interactions remain largely unexplored.

References

Last reviewed

April 2024

Informational disclaimer: This page is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any herbal supplement, especially if you are pregnant, breastfeeding, have existing health conditions, or are taking medications.