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Banned Fenfluramine
Found in Chinese Teas in Britain -
And, Yet Again, Another Weight-Loss Drug Under Watch by FDA
Herbal
Medicine Found to Contain Fenfluramine
Although banned since
1997, reported cases of fenfluramine toxicity appeared in Great Britain
this past year. Fenfluramine, a component of the diet drug "fen-phen,"
has been linked to potentially fatal pulmonary hypertension. The source
of the fenfluramine appears to be Chinese herbal medicine from a local
source.
In a letter to the British Medical Journal,
the researchers stress the need for stricter regulation of traditional
herbal medicine. While acknowledging that most Chinese herbalists and
practitioners of other nontraditional medicines are responsible and
professional, the general public is naïve about the safety of natural
remedies, the letter states.
Use of herbal supplements is often unreported
to physicians, according to a 2001 study in the Journal of the American
Medical Association (JAMA). Herbal supplements can cause complications
such as bleeding, or can interfere with other medications during surgical
procedures, according to the researchers. The researchers found that
people did not report their herbal medication for various reasons, including
the following:
- a belief that physicians are not knowledgeable
about herbs
- a belief that physicians are prejudiced
against herbs
- a fear of admitting use of unconventional
therapies to their physician
- taking the herbs for reasons unrelated
to their medical condition
- not considering herbal supplements as
medications
The researchers recommend that physicians
ask their patients very explicitly about herbal medications usage. However,
even when asked about use of herbal medication, one in five patients
will not know the exact preparation of the herb they are taking.
About
Herbal Supplements
Herbal supplements are considered foods,
not drugs, by the FDA and therefore are not subject to the same
testing, manufacturing, and labeling standards and regulations as drugs.
Until 1994, the FDA had disallowed health claims of any kind
on herbal supplements. The passage of the federal Dietary Supplement
and Health Education Act (DSHEA) in late 1994 started to reverse this
trend.
As recently as January 2000, the FDA
updated the laws governing the labeling of herbal supplements, so consumers
now can see labels that explain how herbs can influence different actions
in the body. However, herbal supplement labels still cannot say anything
about treating specific medical conditions, because herbal supplements
are not subject to clinical trials or to the same manufacturing standards
as prescription or traditional over-the-counter drugs.
Always consult your physician for more
information.
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April
2002
About
Herbal Supplements
Take
Precautions When Choosing Herbal Supplements
Weight-Loss
Drug Under Watch
Take Precautions When
Choosing Herbal Supplements
- Do not self-diagnose. Consult
your physician before taking herbal supplements.
- Educate yourself. Learn as much
as you can about the herbs you are taking by consulting your
physician and contacting herbal supplement manufacturers for
information.
- If you use herbal supplements,
follow label instructions carefully and use the prescribed dosage
only. Never exceed the recommended dosage, and seek out information
about contraindications.
- Watch for side effects, such as
nausea, dizziness, headache, or upset stomach. If such symptoms
occur, reduce the dosage or stop taking the herbal supplement.
- Be alert for allergic reactions.
A severe allergic reaction can cause difficulty breathing. If
such a problem occurs, call 911 or the emergency number in your
area for help.
- Research the company whose herbs
you are taking. All herbal supplements are not created equal,
and it is best to choose a reputable manufacturer's brand. Ask
yourself:
- Is the manufacturer involved
in researching its own herbal products or simply relying
on the research efforts of others?
- Does the product make outlandish
or hard-to-prove claims?
- Does the product label give
information about the standardized formula, side effects,
ingredients, directions, and precautions?
- Is label information clear
and easy to read?
- Is there a toll-free telephone
number, an address, or a web address listed so consumers
can find out more information about the product?
Online
Resources:
British
Medical Journal
Journal
of the American Medical Association (JAMA)
National
Library of Medicine
US
Food and Drug Administration (FDA)
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