"Vinpocetine is a highly selective and non-steal effect
  vasodilator.  That is to say that it improves brain blood
  flow, but only in those areas of the brain that require
  improvement!  As a result, not only can Vinpocetine be
  used to treat and prevent stroke, but its side effects
  include improving eyesight, hearing, mobility, reaction
  and agility -- in short, enhanced brain function can mean
  enhanced physical function.  Vinpocetine is being proven
  to be one of the most remarkable and yet safe supplements
  of recent times.
  "Vinpocetine has been shown to be a cerebral metabolic
  enhancer and a selective cerebral vasodilator (1,2). 
  Vinpocetine has been shown to enhance oxygen and glucose
  uptake from blood by brain neurons, and to increase
  neuronal ATP bio-energy production, even under hypoxic
  (low oxygen) conditions (3,4)." 
   (from:  Vinpocetine - a superior cerebral metabolic
    enhancer and neuroprotector, by James South, MA)
The actions of vinpocetine result in a very long list of 
benefits, including enhancement of memory, alertness, mood, 
and eyesight -- and much more.  (Sounds a bit like the
actions of ginko biloba extract.)  Clinical research began 
over 25 years ago.
To learn more, check out these articles.  
The first one is a short intro:
 http://www.antiaging-systems.com/aama2z.htm
 http://www.smart-drugs.net/ias-vinpocetine.htm
 http://www.life-enhancement.com/806nwebsite/806nclarity.html
 http://www.life-enhancement.com/809nwebsite/809nspacesecrets2.html
 http://lef.org/prod_hp/abstracts/vinpocetine.html
Vinpocetine prices seem to have fallen over 70% recently.
Good results occurred with 10 or 20 mg taken every 12 hours.
Side effects are rare.
Two low cost Vinpocetine sources are:
    http://www.peggyshealth.com      120 tablets x 5mg = $10
    http://www.beyond-a-century.com  100 x 10mg (powder) = $11
For information and research purposes only.
Bill
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