Plant Profile

Pygeum

Prunus africana
Family: Rosaceae  ·  Parts used: Bark  ·  Also known as: African cherry, Red stinkwood, African plum

The complete database record: 2 documented constituents, 1 pharmacological action, 5 traditional / indicated uses, with 13 cited sources.

Botanical Description

Evergreen tree (Rosaceae), 10-30 m tall, with dark, fissured, red-brown bark (the source of the common name 'red stinkwood', from its unpleasant smell when cut). Leaves are glossy dark green, leathery, oblong with finely toothed margins. Small white, five-petalled flowers are borne in axillary racemes, followed by small reddish-brown, two-lobed fruit.

Height: 10-30 m
Habit: Evergreen tree
Leaves: Glossy dark green, leathery, oblong, finely toothed
Flowers: Small, white, five-petalled, in axillary racemes
Stem: Dark, fissured, red-brown, aromatic bark
Root: Deep woody root system
Fruit: Small, reddish-brown, two-lobed fruit
Flowering Period: Variable, often twice yearly in its native range

Habitat & Distribution

Native to montane forests of central and southern Africa (and Madagascar), growing at moderate to high altitude (roughly 900-3400 m). The species is CITES-listed and conservation-threatened owing to over-harvesting of bark for the pharmaceutical trade.

Harvesting

Bark is traditionally stripped from mature trees. Unsustainable stripping - especially removing bark all the way round the trunk - kills the tree and has driven population decline, so sustainable, partial and rotational bark harvesting or cultivated sources are recommended.

Parts: Bark
Season: Not standardised; sustainable/rotational harvesting recommended

Key Constituents

Phytosterols (beta-sitosterol)[1, 3, 10, 11]

Sterols associated with the prostate-supporting activity.

Phytosterols
Pentacyclic triterpenes (ursolic and oleanolic acid) and ferulic acid esters[3]

Anti-inflammatory supporting constituents of the bark.

Ferulic acidTerpenes / terpenoids

Pharmacological Actions

Anti-inflammatory[3, 6, 8, 10]

Anti-inflammatory (prostate)

Traditional & Indicated Uses

Arthritis / joint pain

inferred from anti-inflammatory action

Mechanistic Exclude Ids: REF-1508, REF-1511
Evidence: 1
Label: Arthritis / joint pain

more plants for arthritis / joint pain →detailed sources →

Inflammation (general)[8]Preliminary · 2/10

inferred from anti-inflammatory action

Mechanistic Exclude Ids: REF-1511
Evidence: 2
Label: Inflammation (general)

more plants for inflammation (general) →detailed sources →

Prostate support[2, 3, 4, 5, 7, 11, 13]Strong · 10/10

Supports lower urinary tract symptoms of benign prostatic hyperplasia (BPH) - a Cochrane meta-analysis of 18 RCTs (1562 men) found a moderate improvement in urinary symptoms and flow versus placebo, but the trials were small, short and methodologically weak, so the evidence remains uncertain

Evidence: 10
Label: Prostate support

more plants for prostate support →detailed sources →

Skin irritation

inferred from anti-inflammatory action

Mechanistic Exclude Ids: REF-1508, REF-1511
Evidence: 1
Label: Skin irritation

more plants for skin irritation →detailed sources →

Urinary support[2, 3, 4, 5, 11, 13]Strong · 10/10

Supports lower urinary tract symptoms of benign prostatic hyperplasia (BPH) - a Cochrane meta-analysis of 18 RCTs (1562 men) found a moderate improvement in urinary symptoms and flow versus placebo, but the trials were small, short and methodologically weak, so the evidence remains uncertain

Evidence: 10
Label: Urinary support

more plants for urinary support →detailed sources →

Traditional Use & History

Prunus africana bark has a traditional use in East and Central African ethnomedicine for urinary complaints, and its extract (marketed as Pygeum) became one of the most widely used European phytotherapy remedies for benign prostatic hyperplasia (BPH) symptoms in the 20th century. Clinical evidence for symptom benefit is moderate but drawn from small, methodologically weak trials.[3]

Preparations

Standardised lipophilic bark extract (capsule)[3]

The clinically studied commercial form, standardised for phytosterol content.

Dosage

Standardised extract[3]

Clinical trials have most often used around 100-200 mg/day of standardised lipophilic bark extract, divided into two doses. Educational reference only, not a prescription; any prostate or urinary symptom should be medically assessed first.

Safety, Cautions & Contraindications

Safety note[3, 13]Caution

Lower urinary tract / prostate symptoms must be medically assessed first to exclude prostate cancer. The evidence is mixed and rests on small, short, methodologically weak trials, so men with moderate or severe BPH should not rely on it instead of proven treatment.

Safety note[3]Info

Generally well tolerated, with mild gastrointestinal effects the most common report.

Harvest Readiness

[12]

Part: bark
Signals: Strip the bark from mature trees on a sustainable rotation: take only two of the four quarters of the trunk circumference (opposite sides), from about 35 cm above ground to the first branch, leaving the cambium intact; the same tree can be re-harvested only every 4-5 years.
Basis: traditional
Source Quote: the bark can be harvested sustainably every 4 - 5 years, harvesting from alternate pairs of quarters each time
Species Confirmed: 1
Notes: Useful Tropical Plants / Ken Fern (REF-3317); pygeum bark has no seasonal window - the readiness is tree maturity plus a 4-5 year recovery rotation, stripping only two opposite quarters at a time without damaging the cambium. Single lineage -> provisional. (Prunus africana is CITES-listed; over-harvest kills the tree.)

External Identifiers

References & Sources

  1. Thompson, R.Q., Katz, D. and Sheehan, B (2019) 'Chemical comparison of Prunus africana bark and pygeum products marketed for prostate health', Journal of Pharmaceutical and Biomedical Analysis, 163, pp. 162-169. doi:10.1016/j.jpba.2018.10.004 Preclinical
    https://doi.org/10.1016/j.jpba.2018.10.004
  2. Dvorkin, L. and Song, K.Y (2002) 'Herbs for benign prostatic hyperplasia', The Annals of Pharmacotherapy, 36(9), pp. 1443-1452. doi:10.1345/aph.1A228 Meta-analysis / review
    https://doi.org/10.1345/aph.1A228
  3. Keehn, A. and Lowe, F.C (2015) 'Complementary and alternative medications for benign prostatic hyperplasia', The Canadian Journal of Urology, 22(Suppl 1), pp. 18-23. Preclinical
    https://scholar.google.com/scholar?q=Complementary%20and%20alternative%20medications%20for%20benign%20prostatic%20hyperplasia
  4. Kim, T.H., Lim, H.J., Kim, M.S. and Lee, M.S (2012) 'Dietary supplements for benign prostatic hyperplasia: an overview of systematic reviews', Maturitas, 73(3), pp. 180-185. doi:10.1016/j.maturitas.2012.07.007 Meta-analysis / review
    https://doi.org/10.1016/j.maturitas.2012.07.007
  5. Cambronero, J., Osca-Garcia, J.M., Merino-Salas, S., Miguel, J.M. and others (2022) 'Effectiveness of treatment with Pygeum africanum in patients with lower urinary tract symptoms and benign prostatic hyperplasia: a cross-sectional study in the real-world clinical practice in Spain (The PROFIT Study)', Archivos Espanoles de Urologia, 75(3), pp. 219-227. Clinical study
    https://scholar.google.com/scholar?q=Effectiveness%20of%20treatment%20with%20Pygeum%20africanum%20in%20patients%20with%20lower%20urinary%20tract%20symptoms%20and%20benign%20prostatic%20hyperplasia%3A%20a%20cross-sectional%20study%20in%20the%20real-world%20clinical%20practice%20in%20Spain%20%28The%20PROFIT%20Study%29
  6. Quiles, M.T., Arbos, M.A., Fraga, A., de Torres, I.M. and others (2010) 'Antiproliferative and apoptotic effects of the herbal agent Pygeum africanum on cultured prostate stromal cells from patients with benign prostatic hyperplasia (BPH)', The Prostate, 70(10), pp. 1044-1053. doi:10.1002/pros.21138 Preclinical
    https://doi.org/10.1002/pros.21138
  7. Salinas-Casado, J., Esteban-Fuertes, M., Carballido-Rodriguez, J. and Cozar-Olmo, J.M (2020) 'Review of the experience and evidence of Pygeum africanum in urological practice', Actas Urologicas Espanolas, 44(1), pp. 9-13. doi:10.1016/j.acuro.2019.08.002 Meta-analysis / review
    https://doi.org/10.1016/j.acuro.2019.08.002
  8. Villar, A., Silva-Fuentes, F., Mula, A. and Zangara, A (2024) 'Anti-Inflammatory Potential of Prunus africana Bark Extract: An In Vitro Study of Cytokine Release by Lipopolysaccharide-Stimulated Human Peripheral Blood Mononuclear Cells', International Journal of Molecular Sciences, 25(15), pp. 8298. doi:10.3390/ijms25158298 Preclinical
    https://doi.org/10.3390/ijms25158298
  9. Larre, S., Camparo, P., Comperat, E., Boulbes, D. and others (2012) 'Biological effect of human serum collected before and after oral intake of Pygeum africanum on various benign prostate cell cultures', Asian Journal of Andrology, 14(3), pp. 499-504. doi:10.1038/aja.2011.132 Preclinical
    https://doi.org/10.1038/aja.2011.132
  10. Rubegeta, E., Makolo, F., Kamatou, G., Enslin, G. and others (2023) 'The African cherry: A review of the botany, traditional uses, phytochemistry, and biological activities of Prunus africana (Hook.f.) Kalkman', Journal of Ethnopharmacology, 305, pp. 116004. doi:10.1016/j.jep.2022.116004 Meta-analysis / review
    https://doi.org/10.1016/j.jep.2022.116004
  11. Dedhia, R.C. and McVary, K.T (2008) 'Phytotherapy for lower urinary tract symptoms secondary to benign prostatic hyperplasia', The Journal of Urology, 179(6), pp. 2119--2125. doi:10.1016/j.juro.2008.01.094 Meta-analysis / review
    https://doi.org/10.1016/j.juro.2008.01.094
  12. Fern, Ken 'Prunus africana (Useful Tropical Plants)'. Available at: https://tropical.theferns.info/viewtropical.php?id=Prunus+africana Traditional / reference
    https://tropical.theferns.info/viewtropical.php?id=Prunus+africana
  13. Wilt, T. and Ishani, A. and Mac Donald, R. and Rutks, I. and Stark, G (2002) 'Pygeum africanum for benign prostatic hyperplasia', Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD001044 Meta-analysis / review
    https://doi.org/10.1002/14651858.CD001044

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. How this site is built.

Selected studies & references

Educational use only. This profile summarises traditional and scientific sources for reference. It is not medical advice and not a substitute for a qualified practitioner. Some plants carry safety cautions and drug interactions - always check before use.
This profile is assembled automatically from the Omnia Sana plant database, which we curate by hand. How this site is built.
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