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A
drug, broadly speaking, is any chemical substance that, when absorbed into the body of a living organism, alters normal bodily function.
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Drug
From Wikipedia, the free encyclopedia
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Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (July 2007)
For other uses, see Drug (disambiguation).
Coffee is the most widely used psychotropic beverage in the world. In 1999 the average consumption of coffee was 3.5 cups per day per U.S. citizen.[1]
The cigarette is the common pharmaceutical form of tobacco – one of the world’s best selling drugs.[2]
Wine is a common alcoholic beverage.[3]
Cannabis is another commonly used recreational drug[4].
Pharmacy and Pharmacology portal
A drug, broadly speaking, is any chemical substance that, when absorbed into the body of a living organism, alters normal bodily function[5]. There is no single, precise definition, as there are different meanings in medicine, government regulations, and colloquial usage.[6]
In pharmacology, Dictionary.com defines a drug as "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being."[6] Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders.[7]
Recreational drugs are chemical substances that affect the central nervous system, such as opioids or hallucinogens.[7] They may be used for perceived beneficial effects on perception, consciousness, personality, and behavior.[7][8] Some drugs can cause addiction and habituation.[8]
Drugs are usually distinguished from endogenous biochemicals by being introduced from outside the organism.[citation needed] For example, insulin is a hormone that is synthesized in the body; it is called a hormone when it is synthesized by the pancreas inside the body, but if it is introduced into the body from outside, it is called a drug.[citation needed]
Many natural substances such as beers, wines, and some mushrooms, blur the line between food and drugs, as when ingested they affect the functioning of both mind and body.
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