Buchu (Agathosma betulina): Benefits, Traditional uses and African Phytotherapy for Urine Infections

According to the World Health Organization, about 80 per cent of the African population uses traditional medicine for their primary care. Among the most common infections, urinary infections affect millions of people every year on the continent, with antibiotic resistance rates that often exceed 50% for some strains of Escherichia coli in several West and South African countries.

Faced with this challenge, the African Pharmacopoeia offers ancestral solutions that are still largely underexplored by modern science. The buchu, or Agathosma betulinaIt's part of it. This small aromatic plant from Western Cape in South Africa has been used for centuries by the San and Khoi peoples to relieve urinary disorders, inflammation and digestive disorders.

In this article, you will discover the cultural origin of the buchu, its active ingredients, available scientific evidence, traditional methods of preparation and precautions for use. The approach remains complementary: where data permit, it can integrate harmoniously with conventional care with a natural health practitioner.

Context: Buchu in tradition and science

Buchu mainly refers to two species: Agathosma betulina (round sheets) and Agathosma crenulata (more elongated leaves). It's A. betulina which is most sought after for its medicinal properties.

Historically, San and Khoikhoi mixed dried and powdered leaves with animal fat to make ointments. They also chewed them for stomach aches. The 17th century Dutch settlers quickly adopted this plant and transformed it into a « Boegoebrandewyn » (brandy in the buchu) and in boiled vinegar to wash the wounds.

In the 19th century, buchu entered European and American pharmacopoeias as diuretic and urinary antiseptic. With the arrival of antibiotics, its use declined. Today, in the face of rising antimicrobial resistance, researchers are rediscovering its anti-inflammatory and aquaretic potential.

Recent studies remain modest in number, but confirm interesting activities. Before any use, it is essential to be accompanied by an African herbalist or a trained naturopath, who will adapt the dosages and check possible interactions.

Buchu (Agathosma betulina): origin, description and active ingredients

Native to the sandy mountain slopes of Western Cape in South Africa (Cederberg, Piketberg, 300-700 m altitudes), the buchu is a evergreen shrub up to a metre high. Its leaves are elliptic to almost round, punctuated with oleiferous glands that release a strong smell of mint and blackcurrant when frowned.

The white to pink flowers appear from June to November. The essential oil obtained by steam distillation contains mainly diosphenol, isomenthone, limonene, pulegone and characteristic sulphur compounds which give it its unique aroma.

Among the most studied active ingredients are:

• Diosphenol, associated with the water effect (increased urinary flow without excessive loss of electrolytes).
• Flavonoids (diosmine, rutin, quercetin) with anti-inflammatory and antioxidant properties.
• Volatile oils that moderately inhibit 5-lipoxygenase and, to a lesser extent, cyclooxygenases.

These compounds partly explain traditional use in low urinary tract infections, cystitis and inflammation of the prostate.

Traditional and scientific evidence of effectiveness

In traditional South African medicine, buchu is known for relieving mictional burns, recurrent cystitis, prostatitis and even some rheumatic pain. It is often combined with other local plants such as Artemisia afra (wilde als) for colds.

Scientifically, data remain limited but oriented. A magazine published in 2022 in Pharmaceuticals indicated moderate antimicrobial activity of leaf extracts (methanol-dichloromethane) against several uropathogens, while pure essential oil showed little direct effect. Ethanol extract showed significant inhibition of COX-1 and analgesic activity in mice.

More recent in vitro studies with commercial aqueous extract have shown inhibition of the release of pro-inflammatory cytokines (IL-6, TNF-α) and reduction of oxidative explosion of neutrophils. These anti-inflammatory and immunomodulatory mechanisms could explain the symptomatic relief observed traditionally, even if the bactericidal effect remains secondary.

There are still no large-scale randomized clinical trials in humans demonstrating bacterial eradication comparable to antibiotics. Buchu is therefore more likely to be a symptomatic and aquaretic support in a comprehensive approach to urinary tract health.

Traditional methods of preparation and dosages

The most common forms are herbal tea, dyeing and essential oil (external use only for the latter).

Dried leaf tea: 1 to 2 grams of dried leaves (about a teaspoon) in 250 ml of simmering water. Infuse 5 to 10 minutes covered. Drink 2 to 3 cups per day for 5 to 7 days maximum if urinary symptoms occur. The smell and taste are powerful; You can soften with a little honey or combine with rooibos.

Mother dye: Traditionally prepared in 40-50 % alcohol. Common dosage: 20 to 40 drops diluted in a little water, 2-3 times a day. Always on the advice of a practitioner.

External use: decoction or buchu vinegar to wash superficial wounds or relieve bruising (local application).

Traditional dosages vary between regions and practitioners. It is preferable to start with small quantities and observe the tolerance.

Precautions for use and contraindications

Buchu contains pulegone, a potentially hepatotoxic compound in high dose or prolonged use. It is not recommended in pregnant women, young children and people with severe renal or hepatic impairment.

Avoid long cures (more than 10 consecutive days) without follow-up. Pure essential oil must never be ingested. Theoretical interactions exist with anticoagulants and some medicines metabolised by the liver.

In case of fever, severe back pain or blood in the urine, consult a healthcare professional immediately: it may be a pyelonephritis requiring appropriate treatment.

Practical tips for integrating buchu

Focus on reliable sources: Western Cape certified growers or herbalists that guarantee the species A. betulina and the absence of pesticides. The dried leaves are kept in an opaque jar sheltered from light and moisture for 12 to 18 months.

You can occasionally integrate it into a routine of urinary well-being: abundant hydration, removal of irritants (coffee, excess alcohol), gentle intimate hygiene and, if necessary, association with other plants known as cranberry or busterole, always under professional guidance.

Follow-up by a natural health practitioner helps to adjust protocols, monitor possible side effects, and assess whether other approaches (eating, stress, microbiota) are needed.

FAQ – Frequently Asked Questions about Buchu

Can the buchu replace antibiotics in case of urinary infection?
No. It can support comfort and promote elimination, but has not demonstrated sufficient bactericidal efficacy to replace an indicated antibiotic treatment. Consult a professional.

What is the difference between Agathosma betulina and Agathosma crenulata?
A. betulina (round leaves) is preferred for traditional medicinal use. A. crenulata contains more pulegone and is used more in perfumery.

Can we take buchu every day in prevention?
It's not recommended. Short and targeted treatments are preferable. Prolonged use requires follow-up.

Is buchu available in West Africa?
It is mainly produced in South Africa. It is increasingly found in specialist and online herbal facilities with serious suppliers.

Are there any testimonies from African plant therapists?
Many South African practitioners continue to recommend it for mild cystitis. Readers are encouraged to collect feedback from local practitioners trained to enrich oral transmission.

Conclusion

Buchu perfectly illustrates the richness of South African pharmacopoeia: a simple, aromatic plant, used for generations to support the health of the urinary tract and soothe inflammations. Current scientific evidence confirms interesting anti-inflammatory and aquaretic mechanisms, while recalling that more robust clinical research is still needed.

Exploring this plant also means honouring the knowledge of the San and Khoi peoples and contributing to the sustainable development of African resources. Share your feedback and feel free to ask your questions. Before use, consult with a natural health practitioner or a health professional for personalized and secure support.

About the author

YAHU HEALTH is a platform dedicated to the popularization of African herbal medicine and natural medicine. Our team builds on the continent's traditions and available scientific data to provide accessible, responsible and sustainable well-being-oriented educational content.

Legal mention: This content is informative. Any use of medicinal plants must be notified by a natural health practitioner or a qualified health professional.

Scientific sources

1. Brendler T, Abdel-Tawab M. Buchu (Agathosma betulina and A. crenulata): Rightfully Forgotten or Underutilized? Pharmaceuticals. 2022.
2. Moolla A, Viljoen AM. ‘Buchu J Ethnopharmacol. 2008.
3. Viljoen AM et al. The in vitro biological activity of selected South African Agathosma species. J Ethnopharmacol. 2006.
4. World Health Organization. Global Strategy for Traditional Medicine 2014-2023 and recent updates.
5. Recent in vitro studies on commercial aqueous extracts of buchu (anti-inflammatory and immunomodulatory activity), summarized in the 2022-2025 reviews.
6. Antimicrobial resistance data in urinary infections in the African region (WHO GLASS reports).

Visual suggestions: Main image – collage of fresh and dried buchu leaves with superimposed title. Infographic of active ingredients. Comparison of forms of use. Individual photos of the flowering leaves and plant.