Pygeum extract has also shown an ability to improve the capacity to achieve an erection in patients with BPH or prostatitis as determined by nocturnal penile tumescence in a double-blind clinical trial. BPH and prostatitis are often associated with erectile dysfunction and other sexual disturbances. Presumably, by improving the underlying condition, pygeum can improve sexual function.
The literature on P. africanum for the treatment of benign prostatic hyperplasia is limited by the short duration of studies and the variability in study design, the use of phytotherapeutic preparations, and the types of reported outcomes. However, the evidence suggests that P. africanum modestly, but significantly, improves urologic symptoms and flow measures. Further research is needed using standardized preparations of P. africanum to determine its longterm effectiveness and ability to prevent complications associated with benign prostatic hyperplasia. [Am J Med. 2000 Dec 1;109(8):654-64]