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St. John's
Wort - Now You See It, Now You Don't
"The use of herbal preparations and supplements has been growing worldwide
with over four billion $ a year spent on alternative medicines in the U.S....
"OBJECTIVE:
To use a more specific and sensitive method to accurately determine the
total Hypericin's] 'active ingredients] that are found in these 'St. John's
Wort] products...
"CONCLUSIONS:
...consistency is not apparent between brands and more products have
inaccurate label claims.
On average, most labels overestimate the
hypericin's] content by a factor of almost two. Emphasis
added.
In:
Canadian J. Clin. Pharmacol., vol. 10, 2003. By: Draves & Walker, Dept. of
Pharmacy, Sunnybrook and Women's College Health Science Centre, Toronto,
Ontario M4N 3MS, Canada.
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