What Is Pygeum Africanum?
Pygeum africanum (also known as Prunus africana) is a large evergreen tree native to sub-Saharan Africa. Bark extract from this tree has been used in traditional African medicine for urinary complaints for centuries and has been studied in European phytomedicine since the 1960s. It is sold as a dietary supplement in the US and as a registered phytomedicine in several European countries.
Quick Facts
- Botanical name: Pygeum africanum (syn. Prunus africana)
- Plant part: Bark extract
- Active compounds: Phytosterols (beta-sitosterol), pentacyclic terpenes, ferulic acid
- Standardised to: Typically 13% sterols or 3% phytosterols
- Clinical evidence: Cochrane meta-analysis of 18 RCTs
- Key outcomes in trials: Nocturia, peak urine flow, residual urine
The Cochrane Evidence Base
Pygeum africanum has a Cochrane systematic review evaluating 18 randomised controlled trials involving over 1,500 men. This is one of the most robust evidence bases among botanical prostate health ingredients. The review found men taking pygeum were more than twice as likely to report overall improvement compared to placebo. Specific findings from the meta-analysis included:
- 19% reduction in nocturia (nighttime urination frequency)
- 23% improvement in peak urine flow rate (Qmax)
- 24% reduction in residual urine volume after urination
- Significant improvement in global LUTS symptom scores
These are clinically meaningful improvements for men with mild to moderate BPH. The effect sizes are modest compared to pharmaceutical 5-ARI medications but compare favourably to saw palmetto's more variable evidence base.
How Pygeum Is Proposed to Work
Pygeum's proposed mechanisms include: anti-inflammatory effects through inhibition of 5-lipoxygenase and cyclooxygenase pathways; anti-proliferative effects on prostate fibroblasts (reducing prostate tissue growth); improvement of bladder contractility (addressing detrusor underactivity); and possible phytoestrogenic activity that may modulate the hormonal environment of the aging prostate.
Pygeum and Nocturia: The Most Relevant Clinical Finding
The 19% average reduction in nocturia frequency is the most clinically relevant finding for many men, as nocturia is typically the symptom that most disrupts quality of life. For a man waking four times per night, a 19% reduction represents less than one fewer trip per night on average; for a man waking twice, it could mean consistently sleeping through to morning. Individual variation is significant.
Pygeum's Safety Profile
Pygeum africanum is generally well-tolerated. Reported side effects in clinical trials were infrequent and mild, primarily limited to occasional gastrointestinal upset. No serious adverse effects have been documented in the trials reviewed in the Cochrane analysis. Unlike some phytomedicines, pygeum does not have significant known drug interactions, though standard caution applies regarding use alongside medications and in men with liver conditions.
Standardisation: Why It Matters
Quality pygeum preparations are standardised to their active compound content, typically phytosterols. ViriFlow standardises its pygeum africanum extract to 3% phytosterols, which is consistent with the preparations used in quality clinical research. This is a positive signal compared to non-standardised extracts where active compound content is not controlled.
Pygeum in ViriFlow
ViriFlow contains pygeum africanum standardised to 3% phytosterols as one of its two primary active ingredients alongside saw palmetto. The individual pygeum dose within the 700 mg proprietary blend is not disclosed. For the full ingredient context, see ViriFlow ingredient breakdown.
Pygeum Benefits Summary
- Cochrane meta-analysis of 18 RCTs: strongest evidence base among prostate botanicals
- 19% average reduction in nocturia frequency
- 23% improvement in peak urine flow rate
- 24% reduction in residual urine volume
- Anti-inflammatory, anti-proliferative, and bladder-contractility improving mechanisms
- Well-tolerated safety profile in clinical trials
- Standardised to 3% phytosterols in ViriFlow