erectile dysfunction treatment, erectile dysfunction causes
Erectile Dysfunction is the inability to get or keep an erection firm enough for sexual intercourse. Erectile
dysfunction can be a total inability to achieve an erection, an inconsistent ability to do so, or a tendency to
sustain only brief erections.
NIH estimates about 30 million men suffered from erectile dysfunction in the United States, Incidence increases
with age. About 4% of men at 50s and 17% of men at 60s experience a total inability to achieve an erection. But
erectile dysfunction is treatable at any age.
Erectile dysfunction causes
Erectile dysfunction usually has a physical cause, such as disease, injury, or side effects of drugs. Any disorder
that causes injury to the nerves or impairs blood flow in the penis has the potential to cause erectile dysfunction.
Lifestyle choices that contribute to heart disease and vascular problems also raise the risk of erectile
dysfunction. Smoking, drinking alcohol excessively, being overweight, and not exercising are possible causes of
dysfunction. Erectile dysfunction can be a side effect of many common medicines. Hormonal abnormalities are a
less frequent cause of erectile dysfunction.
Erectile dysfunction treatment
In March 1998, the U.S. Food and Drug Administration (FDA) approved sildenafil (Viagra), the first pill to treat
ED. Since that time, vardenafil hydrochloride (Levitra) and tadalafil (Cialis) have also been approved.
SOURCE OF INFORMATION: National Institutes of Health, USA
Improvements in penile endothelial L-arginine-nitric oxide activity appear to benefit conditions like erectile
dysfunction.  NO dilates blood vessels and improves the circulation, but excessive amount of NO may cause
circulatory shock and induce cell death. Some phyto-chemicals are able to enhance NO formation from the
endothelial cells to improve circulation. 
Arginine, yohimbine, Panax ginseng, Korean red ginseng, Eurycoma longifolia, Pimpinella pruacen, pycnogenol,
Muara puama, Maca, watermelon and Ginkgo biloba all have some degree of evidence of health benefits on
erectile dysfunction. [3-5] All supplements have side effects, and they may not work for everybody. Users must
discuss with their doctors before taking any supplements and medications.
Reference  Will Dunham Erectile dysfunction affects 18 percent of men Reuters Feb 1,2007 18  Million Men in the United
States Affected by Erectile Dysfunction Newswire, Feb 1, 2007.  McKay D. Nutrients and botanicals for erectile dysfunction:
examining the evidence. Altern Med Rev. 2004 Mar;9(1):4-16.  Adimoelja A. Phytochemicals and the breakthrough of traditional
herbs in the management of sexual dysfunctions. Int J Androl. 2000;23 Suppl 2:82-4.  Hong B, et al, A double-blind crossover
study evaluating the efficacy of korean red ginseng in patients with erectile dysfunction: a preliminary report. J Urol. 2002
Nov;168(5):2070-3.  Achike FI, Nitric oxide, human diseases and the herbal products that affect the nitric oxide signalling
pathway. Clin Exp Pharmacol Physiol. 2003 Sep;30(9):605-15.
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Different people may experience different side effects and benefits of a product. You are encouraged to
report adverse side effects to FDA, its website is www.fda.gov., or report the adverse side effects to the
manufacturer, you should be able to find the contact information on the label.