What classification is assigned to street drugs?

Street drugs are classified as Schedule I substances due to their high potential for abuse, lack of accepted medical use in treatment in the United States, and the absence of accepted safety for use under medical supervision. This classification encompasses substances that are considered the most dangerous, including heroin, LSD, and marijuana, among others. Schedule I drugs are often associated with severe psychological or physical dependency and are illegal to manufacture, distribute, or possess.

In contrast, Schedule II substances are recognized as having accepted medical uses but still carry a high risk of abuse, while Schedule III and Schedule IV drugs are considered to have lower potential for abuse and are used more commonly in medical treatment. Therefore, the classification of street drugs as Schedule I reflects their significant risk and illegality within medical contexts.