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Drug Dependence - College Paper

Drug Dependence

In order for a chemical to be considered a drug it must have the capacity to
affect how the body works--to be biologically active. No substance that has the
power to do this is completely safe, and drugs are approved only after they
demonstrate that they are relatively safe when used as directed, and when the
benefits outweigh their risks. Thus, some very dangerous drugs are approved
because they are necessary to treat serious illness. Digitalis, which causes the
heart muscle to contract, is a dangerous drug, but doctors are permitted to use
it because it is vital for treating patients whose heart muscle is weak. A drug
as potent as digitalis would not be approved to treat such minor ...

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a particular sedative, for example,
may become excited rather than relaxed. Others may be hypersensitive, or
extremely sensitive, to certain drugs, suffering reactions that resemble
allergies.
A patient may also acquire a tolerance for a certain drug. This means that
ever-larger doses are necessary to produce the desired therapeutic effect.
Tolerance may lead to habituation, in which the person becomes so dependent upon
the drug that he or she becomes addicted to it. Addiction causes severe
psychological and physical disturbances when the drug is taken away. Morphine,
cocaine, and Benzedrine are common habit-forming drugs. Finally, drugs often
have unwanted side effects. These usually cause only minor discomfort such as a
skin rash, headache, or drowsiness. Certain drugs, however, can produce serious,
even life-threatening adverse reactions. For example, the drug Thalidomide was
once called one of the safest sedatives ever developed, but thousands of women
in the United Kingdom ...

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Drug Dependence. (2005, November 24). Retrieved August 22, 2025, from http://www.essayworld.com/essays/Drug-Dependence/36945

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PAPER DETAILS

Added: 11/24/2005 12:31:22 AM
Category: Health & Medicine
Type: Free Paper
Words: 402
Pages: 2

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