What is the primary risk associated with Schedule IV drugs?

The primary risk associated with Schedule IV drugs is indeed moderate risk for psychological dependence. Schedule IV substances are classified as having a lower potential for abuse compared to drugs in higher schedules, such as Schedule I, II, or III. However, they are still capable of causing psychological dependence, which means that individuals may become reliant on these substances to manage their mental and emotional states.

Substances in this category are often used for medical purposes, such as anxiety or sleep disorders, and while they might be safer than higher schedule drugs, caution is still warranted. For instance, medications like benzodiazepines and certain sleep aids can lead to users developing a psychological dependency, particularly if they are used over a prolonged period without the supervision of a healthcare provider.

The other options refer to different aspects of drug classification: severe physical dependence is a characteristic of higher risk substances; no medical use applies to Schedule I drugs; and high potential for abuse is more relevant to Schedule I, II, and even some Schedule III drugs. Hence, moderate psychological dependence accurately captures the primary concern with Schedule IV drugs.