What are considered "controlled substances" in veterinary practice?

Controlled substances in veterinary practice are defined primarily by their potential for abuse and the associated risk of dependence. Medications that are classified as controlled substances are those that have a high potential for abuse, which can lead to severe psychological or physical dependence. These substances are regulated by the Drug Enforcement Administration (DEA) and fall under specific schedules that classify their level of control based on potential for abuse, medical use, and safety.

In contrast, over-the-counter medications, vitamins, and dietary supplements do not fall under this designation as they are typically considered safe for public use and do not exhibit the same risks associated with abuse. Additionally, while medications prescribed for chronic conditions may involve controlled substances, not all medicines used in chronic care are classified as such, particularly if they have low potential for misuse.

The focus on abuse potential makes the correct answer a clear distinction in understanding what constitutes controlled substances in the field of veterinary medicine. This understanding is crucial for veterinarians as they must navigate regulations surrounding prescribing and dispensing these medications, ensuring both compliance and the safety of both the animals in their care and the public.