A Schedule I substance has _____ potential for addiction than a Schedule III substance.

• A. A greater
• B. A lesser
• C. An equal
• D. No difference in

Answer: (A)

Abuse potential drives how drugs are scheduled. Schedule I substances are assigned the highest potential for abuse and have no accepted medical use, while Schedule III substances have a lower potential for abuse and do have accepted medical uses. Because Schedule I is higher-risk for addiction than Schedule III, a Schedule I substance has greater potential for addiction than a Schedule III substance. Suggesting lesser, equal, or no difference would contradict how the schedules are defined; for example, heroin (Schedule I) is considered more addictive than substances like anabolic steroids (Schedule III).