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Experts on Ephedra
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EXPERT
PANEL CONSENSUS STATEMENT
A
multidisciplinary panel of experts, sponsored by the Ephedra Education
Council, met on July 27, 2000, to review and assess the scientific
information relevant to dietary supplements containing ephedrine
alkaloids. A list of the members of the panel is attached, including
biographical sketches.
Prior
to the July 27 meeting, each panel member reviewed the health
assessments that the Food and Drug Administration (FDA) released
on April 3, 2000, including health assessments prepared by outside
consultants to FDA. The panel also reviewed the relevant published
literature, and reviewed the adverse event reports (AERs) that
FDA released on April 3, as well as the AERs that FDA released
in 1997. The literature review included the published literature
on the incidence of heart attacks, strokes and seizures in the
general population of non-ephedra users, including young adults.
Finally, at the July 27 meeting, the panel reviewed unpublished
data on the effectiveness of ephedra products in weight management.
The consensus
conclusions of the panel are as follows:
- Available
information does not demonstrate an association between the
use of dietary supplements containing ephedrine alkaloids and
serious adverse events when used according to the American Herbal
Products Association (AHPA) trade recommendation for ephedra
products. This recommendation includes: (a) a serving limit
of not more than 25 mg of total ephedrine alkaloids, (b) a limit
on daily consumption of not more than 100 mg of total ephedrine
alkaloids, and (c) appropriate warnings consistent with other
available over-the-counter ephedrine alkaloid products (see
attached).
- All labeling
of dietary supplements containing ephedrine alkaloids should
contain appropriate directions and warnings for the public as
adopted by AHPA (see #1) and similar to those approved for over-the-counter
ephedrine alkaloid products.
- The available
information derived from studies of ephedrine and caffeine and
dietary supplements containing ephedrine alkaloids supports
the concept that dietary supplements containing ephedrine alkaloids
may be useful in weight management.
- Given the
absence of data demonstrating an association between ephedra
dietary supplements and serious adverse events, the presence
or absence of a "susceptible population" cannot be
determined. However, severe overdosing can lead to serious adverse
events, and minor and/or very rare idiosyncratic reactions may
occur (e.g., skin rashes, allergic reactions) with use at recommended
serving sizes, as they can with any ingested food.
- The pathology
data available do not show any pattern consistent with ephedrine
alkaloid- containing dietary supplements as a cause of death.
An independent, multidisciplinary panel should be assembled
to perform a clinical, pathological review of all deaths reported
to FDA.
- In order
to provide a more comprehensive scientific database, the National
Institutes of Health, Department of Health and Human Services,
and industry should work together to consider further controlled
studies to address unresolved issues.
- Preparations
that contain ephedrine alkaloids and are marketed without responsible
label instructions
and serving size limitations or are marketed with claims of
achieving an altered state of consciousness or euphoria (including
so called "street drug alternatives"), should be prohibited
because they promote excessive use and abuse.
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