Which of the following is NOT one of the classifications of narcotics?

The classification of narcotics typically includes naturally occurring substances, semi-synthetic derivatives, and synthetic compounds. Naturally occurring narcotics are substances derived directly from plants, such as opium poppies. Semi-synthetics are modified versions of these natural substances that have been chemically altered to improve efficacy or reduce side effects. Synthetics are entirely manufactured compounds that mimic the effects of natural narcotics but are created through chemical processes.

The term "artificially enhanced" is not a recognized category within the established classifications of narcotics. While it might suggest some form of modification or enhancement, this terminology does not accurately reflect the scientific or pharmacological categorizations used in the field. Thus, it is not considered part of the standard classifications of narcotics. This distinction highlights the importance of understanding the precise terminology and classifications in substance use and regulation.