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controlled substance

any of a category of behavior-altering or addictive drugs, as heroin or cocaine, whose possession and use are restricted by law.
Origin of controlled substance
First recorded in 1970-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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controlled substance in Medicine

controlled substance n.
A drug or chemical substance whose possession and use are regulated under the Controlled Substances Act.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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