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Phytomedicine
- Whole Plant Preparation
Ancient cultures had no idea why herbs worked: they simply
knew that certain plants produced certain desired results. Records of
ancient medical practices show that herbs were used extensively to cure
practically every known illness.
In Europe, the word phytomedicines, a category of plant derived drug
products, is widely recognized. Phytomedicine is a term that has been
used in Europe for many decades, mainly referring to therapeutic
products sold only in European markets, often prescribed by physicians,
and generally available at pharmacies rather than health and natural
product stores. Many leading phytomedicine products in Europe were
developed in the 1960s and have been available ever since. In the
United States, herbal remedies were used widely until the early 1900s,
when what was to become the modern pharmaceutical industry began
isolating individual active compounds and producing drugs based on them.
Phytomedicine is the term that is becoming often used in the US in the last
couple of years, but few of us could give a definition if asked. The
prefix "phyto" originates from the Greek phyton: plant. It refers
to an herbal medicine that is a whole-plant preparation, rather than a
single isolated chemical compound. Phytomedicines are defined as
therapeutic agents derived from plants or parts of plants, fruits,
vegetables, grains, and legumes, or the preparations made from them.
Researchers have been able to isolate some phytochemicals, and a number
of companies are now selling concentrates that contain phytochemicals
obtained from plants, vegetables, etc. These may be used as
supplemental sources of some of the nutrients. However, such pills
should not be seen as replacements for fresh whole foods or herbs.
Because several thousand phytochemicals are currently known to exist,
and because new ones are being discovered all the time, no supplement
can possibly contain all of the "fighters" found in whole fruit or plants.
Phytomedicines are plant preparations, the traditional use of which has
been verified by pharmacological experiments, and whose effectiveness
is proven by clinical studies and recognized by practitioners'
experiences. The pharmaceutical industry was originally based upon the
ability to isolate these ingredients and make them available in a purer
form. Herbalists, however, contend that nature provides other
ingredients in the same herbs to balance the more powerful ingredients.
Therefore, when you use herbs in their complete form, your body`s
healing process utilizes a balance of ingredients provided by nature.
Today, scientists are taking a second look at herbal remedies.
Particularly in the past fifteen years, a growing body of research
(much of it done in Europe) has pointed to the therapeutic potential of
numerous herbs. But much work remains to be done; only about 15
percent of the estimated plant species on Earth have been investigated
for possible medicinal uses.
A phytomedicine represents the totality of the medicinal plant or one
of its parts (such as root, leaf, flower, fruit, plant dug out of the
ground, or a phytomedicine). On the other hand, isolated chemical
compounds, derived from plants, are not considered to be herbal
medicines or phytomedicines, although they can be very powerful
substances. Phytomedicines are available as teas, capsules, tablets,
pressed juices, tinctures, solvent - extracted preparations, or
combinations of these various product forms.
Since the 1970s, the German Commission E has been the leading group
to study and report on the beneficial effects and bad side effects, in
some cases, of herbs. Because the FDA does not require studies
to be done on herbs and supplements in the US, we might consider turning
to what Germany has been doing for over 20 years in terms of studying plants,
because Germany requires that their use, dosage information, and side
effects be studied before they can be given to the public.
In the American market different companies use different standardization to
identify the most powerful active components in any given botanical and
what percentages are going to be used for a particular herbal
product. Therefore, many phytomedicine products, especially those
available on the American market, are standardized to a certain
component or group of compounds, which means that only one chemical has
been extracted from the plant.
However, a plant has up to hundreds of different chemicals! Thus, only
a fraction of the whole extract may be concentrated and standardized to
whatever constituent researchers decide is most important. For example,
St. John`s Wort preparations are most often standardized to 0.3 percent
hypericin, although some manufacturers use 0.2 percent, or other
concentration markers. More important, and often ignored, is the
efficacy-constituent relationship. Efficacy or effectiveness can be deduced
from the specific ingredients. They are co-determined for effectiveness:
that is, in most cases,not one but two or three different plant constituents
are known to be responsible for the observed effectiveness.
While hypericin is an important component of St. John`s Wort, which has
been linked to anti-depressive activity, this herb also contains
dozens (if not hundreds) of other components found in the dried tops,
as well. The activity of St. John`s Wort in the treatment of mild to
moderate cases of depression is now believed to be attributable to at
least three types of substances found in the flowers and leaves:
hypericins, hyperforin, and flavonoids.
Typically, phytomedicines that are standardized extracts consisting
of primary active components, secondary components, and accompanying
compounds manifest better effects and a greater therapeutic range of
activity than individual isolated compounds (i.e., conventional drugs).
Phytomedicines have been valued for their medicinal value for centuries
and only recently that scientific research stepped in to offer
evidence. Today, phyto-medical practice is grounded in the principles
of evidence - based medicine and research of the modern biomedical
sciences, which are proving that many herbs are gentle and effective healers.
By using such herbs, you are taking in the whole synergy of complex chemical
components, exactly as they occur together in nature, to help heal the
body.
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