Which of the following substances is classified as Schedule IV?

Xanax, which is classified as a Schedule IV controlled substance, is primarily used for the treatment of anxiety and panic disorders. The classification of drugs into schedules is based on their potential for abuse, accepted medical use in treatment, and the degree of psychological or physical dependence they may cause. Schedule IV substances are considered to have lower potential for abuse compared to Schedule I, II, and III substances, but they can still lead to limited physical or psychological dependence.

Xanax, the brand name for alprazolam, is a benzodiazepine that acts on the central nervous system to produce a calming effect, making it useful for medical purposes. However, it is still regulated to prevent misuse and dependence.

In contrast, other substances listed have different classifications. Methamphetamine is classified as a Schedule II substance due to its high potential for abuse. Testosterone is often classified under Schedule III or not controlled depending on its use. Opium is classified as a Schedule II substance due to significant potential for addiction and abuse. Understanding these classifications helps in recognizing the regulation and control measures in place for various drugs, which is essential knowledge for correctional and probation officers.