Which statement best describes Schedule I drugs?

• A. They have high potential for abuse and currently have accepted medical use.
• B. They have no potential for abuse and are freely available.
• C. They have a high potential for abuse and no accepted medical use.
• D. They have accepted medical use but are tightly controlled.

Answer: (C)

Understanding how drugs are classified by abuse potential and medical use is what this item tests. Schedule I substances are defined as having a high potential for abuse and no currently accepted medical use in treatment in the United States, with no accepted safety for use under medical supervision. This is why the description that emphasizes high abuse potential and no accepted medical use is the best fit. Statements claiming no potential for abuse or that they’re freely available don’t match the regulatory criteria. Saying there is accepted medical use but only with tight control fits other schedules, not Schedule I. Knowing this helps with recognizing regulatory risk and compliance implications in the environment you’re studying.