A drug is any chemical substance, other than a food or device, that affects the function of living things. Technically, vitamin E, oxygen, and cocaine are all examples of drugs. Various drugs can be used to treat illness, or they can be used recreationally to alter behavior and perception.
The definition is somewhat fuzzy, because many substances which are not typically considered drugs are indeed active substances (ex. caffiene, nicotine, and even chocolate). Additionally, there are thousands of substances in foods and "nutritional supplements" which affect the function of living things. Many illegal and recreational drugs (such as cocaine, opium, and ephedra) could potentially be considered "foods" because they do have caloric content. That being said, the popular definition of a drug is any substance which causes an altered state of mind, caffiene and alcohol excluded. This may or may not include medications, which are strictly used to cure illness and by definition not used for recreation.
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CEDRO - Centre for Drug Research, University of Amsterdam combines epidemiological and longitudinal research on illicit drugs, addiction theory, and drug policy developments in Europe.
Meta Description: [ CEDRO combines epidemiological and longitudinal research on illicit drugs, addiction theory, and drug policy developments in Europe. Articles in English, Dutch, French, German, Italian and Russian. ]
Mind's High - Nicely designed site about knowledge and emotion in relationship to drug usage.
THCi - The Honest Cannabis Information Foundation - Some things every visitor needs to know. You don't want to accidentally eat space cake and coffee as just a morning snack.
Trimbos-instituut - The Netherlands Institute of Mental Health and Addiction, aims to promote mental health in the broadest sense of the term.
Meta Description: [ Het Trimbos-instituut ]
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