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Beginning of Paper
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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 approve ....
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Middle of Paper
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.... 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 ....
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ADDITIONAL FEATURED ESSAYS
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