Saw Palmetto eases the urinary difficulties that develop when an enlarged prostate obstructs the exit from the bladder. Although this herb promotes normal urination, it will not cure an underlying disease.
Benign prostate enlargement appears to be triggered by abnormally high levels of the male hormones testosterone and dihydrotestosterone (DHT) in prostate tissue. Saw Palmetto reduces absorption of these hormones within the prostate gland, while reducing inflammation and swelling. All three actions serve to relieve bladder obstruction and improve urinary flow.
Saw Palmetto's popularity has been on an extraordinary roller coaster ride throughout the 20th century. Widely used under the name "Serenoa" until World War II, it was then completely forgotten until its rediscovery in the 90's. The Saw Palmetto plant, a low, scrubby palm, is native to the coastal regions of the southern U.S., from South Carolina to Florida and in southern California. Its medicinal value lies in the oily compounds found in its berries.
At least three rigorous clinical trials have confirmed Saw Palmetto's ability to remedy urinary difficulties. In one comparative trial, it proved equal to the prescription drug Proscar as a source of symptomatic relief (although, unlike Proscar, it had no beneficial impact on the size of the prostate).
Check with your doctor if you are taking any hormonal medications or adrenergic drugs such as the asthma medications Alupent, Brethine, Proventil, and Ventolin. Your dosage may need adjustment.

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