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Project
for the Introductory Course on
Pharmacology
Dr. Nydia R.
Hanna
Evolution
of Pharmaceutical Concoctions
Galen, a Greek
physician practicing in Rome in 2nd century AD was
the main advocate of a humoral system of medicine
that lasted for 1500 years. Galen devised an
elaborate system that attempted to balance the
humors of an ill individual by using drugs of a
supposedly contrary nature. For example, to treat
an external inflammation, a follower of Galen might
apply cucumber, a cool and wet drug. Galen
advocated the use of polypharmaceutical
preparations (or what may be termed "shotgun
prescriptions" today). He argued that the patient's
body would pull out of a complex prescription the
substances it needed to restore its humoral
balance.
Paracelsus or
Aureolus Theophrastus Bombastus von Hohenheim (born
in 1493) was a medical rebel who spoke strongly
against the static ideas of Galen. An advocate of
chemically prepared drugs from crude plants and
mineral substances, he believed that God had placed
a sign on healing substances indicating their use
against disease (eg. Liverwort resembles a liver,
thus it must be good for liver ailments). Chemical
processes, especially distillation, empowered the
follower of Paracelsus to isolate the healing
principles of a drug- its "quintessence". An
emerging tool of science, chemistry, was adopted to
make one of humanity's most ancient of
tools-drugs.
Paracelsus and his
followers became the first pharmacists that made
significant investigations into the chemistry of
drugs during a 300 year period. Much of the
research for this early period came out of the
discovery of drugs in recently explored lands.
Tobacco, guaiac, cascara sagrada, ipecac, and
cinchona bark were among scores of new plant drugs
from the new world.
Cinchona bark, from
which quinine is extracted, came to Europe around
1640 and created a crisis in scholastic medicine.
Galen's elaborate system of balancing humors by
using drugs of opposite qualities could not explain
cinchona bark's efficacy against malaria. Not only
did the bark cure malarial fevers, it had little
effect on other fevers. Here was something Galen
said could not exist (and Paracelsus insisted
must)- a specific remedy for a disease. This
conceptual crisis displaced the therapeutic
agreement of Galenism with a period of about 250
years of therapeutic chaos until the present era of
modern pharmacology.
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During the late
19th and early 20th centuries, few of the drugs
discovered had a significant impact on the
prevention or cure of a disease. Industrial
research on drugs provided several new agents that
reduced the pain and suffering of illness, such as
the analgesic and antipyretic aspirin or the
sedative chloral hydrate. Even though pharmacies
served as important outlets for sera, antitoxins
and vaccines, most of the medicines compounded or
sold by pharmacists around the turn of the century
eased symptoms rather than treated root
illnesses.
In the early 20th
century, with scientific pharmacology emerging and
explaining how drugs worked on a cellular level,
the concept of drugs and their actions held by
professionals and laymen diverged. The public clung
to outdated ideas of humoralism augmented by a
modicum of germ theory. Such beliefs made consumers
susceptible to patent medicine advertising, which
mislead them into equating the effects of strong
laxatives and analgesics with the cure of
disease.
Many pharmaceutical
concoctions of this nature were compounded and
advertised during the early 1900s. Amazingly, many
of these preparations are still in use today,
either sold over the counter, compounded by the
elderly in a family, or acquired from other
countries. These concoctions may or may not be
proven to work. This project will be a fact finding
investigation into what we know about the history
of use of a pharmaceutical concoction, the presumed
effectiveness, the probable method of action and
the societal effects of the pharmaceutical
preparation. Some of these drugs are combination
products, while others are natural products used in
tinctures or teas. Many of these appeared on
pharmacy shelves during the first half of the
1900s, while others were important medicinals of
earlier eras, or are in current use.
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