"Controlled Substances" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Drugs or chemical agents whose manufacture, possession, or use are regulated by government. This may include narcotics and prescription medications.
Below are MeSH descriptors whose meaning is more general than "Controlled Substances".
Below are MeSH descriptors whose meaning is more specific than "Controlled Substances".
This graph shows the total number of publications written about "Controlled Substances" by people in this website by year, and whether "Controlled Substances" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.