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Controlled Substances

A controlled substance is generally a drug or chemical that a government regulates to set limitations on manufacturing, possession, or use. This may include illegal drugs and prescription medications. In the U.S., the Drug Enforcement Administration is responsible for suppressing illegal drug use and distribution by enforcing the Controlled Substances Act. Substances are classified according to schedules and consist primarily of potentially psychoactive substances. Controlled substances do not include many prescription items such as antibiotics. Other agencies, such as the Department of Health and Human Services, the Department of Transportation, and the Department of Homeland Security may issue regulations and notices related to controlled substances.

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