Schedule I substance

A Schedule I substance is a category of drugs defined by the Controlled Substances Act in the United States. These substances are considered to have a high potential for abuse, no accepted medical use, and a lack of safety for use even under medical supervision. Examples include heroin and LSD. The classification means that the manufacture, distribution, and possession of these substances are prohibited, reflecting the government's stance on their risks and lack of therapeutic value. This classification is primarily aimed at regulating drugs deemed especially dangerous.