MED RT from UMLS

Homepage: https://www.nlm.nih.gov/research/umls/sourcereleasedocs/current/MED-RT/index.html

Description: MED-RT includes native pharmacologic classification concepts (e.g. mechanisms of action (MoA), physiologic effects (PE), Established Pharmacologic Class (EPC)) and all relationships asserted between concepts in any namespace. MED-RT incorporates the following terminologies:

• RxNorm for prescribable medications, active ingredients, and relationships between them
• MeSH for indexing chemical structure and therapeutics using its concept hierarchies
• SNOMED CT International to aid in mapping between FDA pharmacologic classes and its product and substance hierarchies MED-RT will maintain the pharmacologic classification relationships from NDF-RT. It also maintains the National Committee on Vital and Health Statistics (NCVHS) standards for describing medication pharmacologic classification: MoA and PE hierarchy concepts. The concepts are components of the Federal Medication Terminologies (FMT) interagency collaboration.

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