Which of the following is classified as a Schedule II drug?

Amobarbital is classified as a Schedule II drug due to its potential for abuse and dependence. Schedule II substances are recognized as having a high potential for abuse, which may lead to severe psychological or physical dependence. This classification indicates that while the drug has legitimate medical uses, such as its use in the treatment of insomnia and as an anesthetic, the risks associated with its misuse are significant enough for it to be strictly regulated.

In contrast, testosterone, fluoxymestrone, and methyltestosterone are classified under different schedules. These anabolic steroids are generally considered Schedule III controlled substances, which reflect a lower potential for abuse compared to Schedule II drugs. The distinction between these schedules is important as it affects prescribing practices, storage, and patient access in clinical settings. Understanding these classifications helps in recognizing the regulatory environment surrounding different substances in pharmacy practice.