The Mapping of Drug Names and MeSH 2022 (MDM) provides owl:sameAs relationships as well as owl:equivalentClass of similar concepts for Drug Names from the DrugBank vocabulary (released 2022-01-03 under version 5.1.9: https://go.drugbank.com/releases/latest#open-data) and the Medical Subject Headings (2022 version: http://id.nlm.nih.gov/mesh/). Two concepts are considered similar if they share the same concept name or a common synonym. Additional synonyms are generated using the Snowball stemming algorithm. The software implementation is available on github within the Maven project SNoKE in the module snoke.ontology: https://github.com/bernd-mueller/snoke/tree/master/snoke.ontology