When is a drug considered a "scheduled drug" under the Controlled Substances Act?

A drug is considered a "scheduled drug" under the Controlled Substances Act when it has been assessed and determined to have a potential for abuse, which can lead to physical or psychological dependence. This classification means that such substances are subject to strict regulation due to the risks they pose to public health and safety. The scheduling indicates the level of control and restrictions that apply to the drug, based on its potential for abuse, accepted medical use, and safety or dependence liability.

Drugs are categorized into schedules (Schedule I through V), with Schedule I substances having the highest potential for abuse and no accepted medical use, while Schedule V substances have lower abuse potential and accepted medical uses. This structured approach allows the government to enable access to medications that are necessary for treatment while managing the risks associated with their misuse.

In contrast, drugs licensed for over-the-counter sales are generally not classified as scheduled drugs, as they are considered safe for public use without a prescription. Drugs used exclusively in clinical settings might be subject to different regulations, while experimental drugs do not fall under the control of the schedules established by the Controlled Substances Act unless they are also classified according to their potential for abuse during clinical trials.