Drug dynamics describes the following properties of drugs:
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Therapeutic effects (such as relief of pain and reduction of blood pressure)
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Side effects (see Drug Action and Chemical Interactions)
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Where the drug acts on the body (site of activity)
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How the drug acts on the body (mechanism of action)
A drug’s effects on the body may be influenced by many factors, such as
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A person’s age (see Aging and Drugs)
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Genetic makeup
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The presence of other medical conditions in addition to the one being treated (see Overview of Response to Drugs)