Which category includes substances such as drugs, adulterants, and diluents?

The classification of substances such as drugs, adulterants, and diluents falls under the category of controlled substances. Controlled substances are defined as drugs or chemicals whose manufacture, possession, or use is regulated by the government due to their potential for abuse or dependence. This category includes a wide range of substances that can alter normal bodily functions and may have legitimate medical uses, but they also carry the potential for misuse and illegal distribution.

Adulterants and diluents refer to substances that are added to drugs to increase volume or manipulate the drug’s effects, often with the intent to deceive users or authorities regarding the purity or potency of the drug. Including these substances within the definition of controlled substances is important for legal and regulatory purposes, as it ensures that all aspects of drug misuse are addressed adequately.

In contrast, counterfeit substances refer specifically to drugs that are falsely represented, while drug paraphernalia encompasses tools and equipment used to consume drugs, and controlled substance analogues are substances that are structurally similar to controlled substances but may not be explicitly listed as such. None of these categories capture the broad range of substances that controlled substances encompass.