Which of the following is NOT a Schedule II drug?

In the context of controlled substances, Schedule II drugs are categorized as having a high potential for abuse which may lead to severe psychological or physical dependence. The substances listed, with the exception of alprazolam, are recognized as Schedule II drugs due to their potency and potential for misuse.

Hydromorphone, oxycodone, and meperidine are all opioids that are classified as Schedule II substances because they are used for pain management but also pose a risk for addiction and abuse. Each of these drugs is tightly regulated, requiring strict controls on their prescriptions and distribution.

Alprazolam, on the other hand, is a benzodiazepine that is classified as a Schedule IV drug due to its lower potential for abuse compared to the substances classified under Schedule II. Benzodiazepines like alprazolam are often prescribed for anxiety and panic disorders, but they are not categorized with the same level of restrictions as the opioids found in Schedule II.

Understanding the classification of these drugs is essential for veterinary practitioners as it influences prescription practices and compliance with state and federal laws regarding controlled medications.