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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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There are 60,000 miles of blood vessels in every adult human.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.