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Pygeum is also known as African Pygeum.
It is a large evergreen tree that grows in the high plateaus of
southern Africa.
The bark is traditionally powdered and drunk as
a tea for genito-urinary complaints. Double-blind clinical trials
have shown efficacy for many parameters of prostatic hypertrophy,
including failure to urinate, nocturnal urination, frequent
urination, residual urine, abdominal heaviness, voiding volume,
prostate volume and peak flow. Results included significant
reduction of symptoms and prostate size, and clearance of bladder
neck urethra obstruction.
The bark contains three groups of active
constituents: phytosterols (including beta-sitosterol),
pentacyclic triterpenoids (including ursolic and oleaic acids)
and ferulic esters of long-chain fatty alcohol (including
ferulic esters of docosanol and tetracosanol).
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