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drug -
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- A substance used in the diagnosis, treatment, or prevention of a disease or as a component of a medication.
- Such a substance as recognized or defined by the U.S. Food, Drug, and Cosmetic Act.
- A chemical substance, such as a narcotic or hallucinogen, that affects the central nervous system, causing changes in behavior and often addiction.
- Obsolete. A chemical or dye.
controlled substance-
- A drug or chemical substance whose possession and use are regulated under the Controlled Substances Act
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drug abuse-
n : excessive use of drugs [syn: substance abuse, habit]
drug addict-
n : a narcotics addict [syn: junkie, junky] What will you choose....drug addict or drug free?
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