What describes a Schedule II controlled substance?

Schedule II controlled substances are recognized for their medical usage but carry a high potential for abuse, which may lead to severe psychological or physical dependence. This classification includes substances like opioids and stimulants that are frequently prescribed but must be managed carefully due to their risk of addiction and misuse.

The other choices do not align with the characteristics of Schedule II substances. For instance, low abuse potential is associated with substances in lower schedules or those not classified as controlled. Similarly, accepted for medical use with no potential for abuse applies to substances classified in Schedule I or those that are not controlled, which is contrary to the nature of Schedule II substances. Hence, acknowledging the balance of medical benefits against risks of dependence and abuse is crucial in understanding this classification.