What defines a controlled substance in pharmacology?

A controlled substance in pharmacology is defined as a drug that has the potential for abuse, which is why it is regulated by law. Controlled substances are categorized in schedules based on their potential for addiction, medical usefulness, and safety. The legal requirements concerning prescription, distribution, and dispensation act to prevent misuse and protect public health.

Drugs that fall under this classification are subject to strict regulations, including limitations on prescribing, storage, and record-keeping. This ensures that while these substances can be beneficial when used appropriately for legitimate medical reasons, their potential for misuse is carefully managed to safeguard patients and society.