Which category is defined as having an accepted medical use, moderate to low physical dependence, and high psychological dependence?

The category that has an accepted medical use, moderate to low physical dependence, and high psychological dependence is indeed Schedule III (CIII). Substances classified under this category are recognized as having therapeutic benefits and can be prescribed by healthcare professionals. These medications are seen as having a lower potential for misuse compared to Schedule I and II drugs, but they still carry risks associated with psychological dependence, which means patients may become reliant on them for psychological effects rather than for pain relief or other physical symptoms.

This balance between medical utility and potential for abuse is a key factor in the classification of drugs within the Controlled Substances Act. For example, anabolic steroids and certain combinations of medications that include less potent opioids fall into this category, reflecting the criteria it meets.

In contrast, other schedules classify drugs differently based on their acceptance for medical use and potential for abuse. Schedule I (CI) drugs have no accepted medical use and a high potential for abuse, Schedule II (CII) drugs have accepted medical uses but a high potential for physical and psychological dependence, and Schedule IV (CIV) drugs have accepted medical use and a lower potential for abuse compared to Schedule III.