Which statement best describes Schedule I controlled substances under the Comprehensive Drug Abuse Prevention and Control Act of 1970?

Which statement best describes Schedule I controlled substances under the Comprehensive Drug Abuse Prevention and Control Act of 1970?

• A. Schedule I substances have the highest potential for abuse, have no medical use, and lack accepted safety for use.
• B. Schedule II substances have high potential for abuse, but have medical uses.
• C. Schedule III–V are less potential for abuse.
• D. Licensing for possession is not required at the federal level.

Answer: (A)

Schedule I substances are defined by three criteria: the highest potential for abuse, no currently accepted medical use in treatment in the United States, and no accepted safety for use under medical supervision. This combination sets Schedule I apart from other schedules and explains why the statement describing these three traits is the best description. Because of these criteria, Schedule I substances are not prescribed in medical practice and possession is tightly restricted, with research requiring special DEA authorization. In contrast, other schedules include substances that do have medical uses (Schedule II) or have lower abuse potential and established safety profiles (Schedules III–V). The notion that federal licensing for possession is not required is incorrect, since federal law requires appropriate registration to possess controlled substances, including Schedule I. For context, marijuana is often cited as an example because many states allow medical use, but federally it is still treated as Schedule I, reflecting the federal definition rather than state allowances.

Schedule I substances are defined by three criteria: the highest potential for abuse, no currently accepted medical use in treatment in the United States, and no accepted safety for use under medical supervision. This combination sets Schedule I apart from other schedules and explains why the statement describing these three traits is the best description. Because of these criteria, Schedule I substances are not prescribed in medical practice and possession is tightly restricted, with research requiring special DEA authorization. In contrast, other schedules include substances that do have medical uses (Schedule II) or have lower abuse potential and established safety profiles (Schedules III–V). The notion that federal licensing for possession is not required is incorrect, since federal law requires appropriate registration to possess controlled substances, including Schedule I. For context, marijuana is often cited as an example because many states allow medical use, but federally it is still treated as Schedule I, reflecting the federal definition rather than state allowances.