A document providing a precise explanation of what constitutes a medicinal or illicit substance, typically in a portable document format. These definitions often encompass chemical composition, pharmacological effects, and legal classifications. For example, a regulatory agency may publish such a document to clarify which substances are controlled under specific legislation.
The importance of having readily accessible, standardized explications concerning substances cannot be overstated. Such resources facilitate consistent interpretation of laws, support accurate scientific research, and inform public health initiatives. Historically, ambiguity surrounding what classifies a controlled substance has led to inconsistencies in enforcement and hindered evidence-based policy making.