MeSH Browser

MeSH Heading: Half-Life
Tree Number(s): G01.910.405
Unique ID: D006207
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D006207
Annotation: usually NIM
Scope Note: The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity.
Entry Term(s): Halflife
Previous Indexing: specific radioisotope, substance, or cell; Time (1966-1970)
Public MeSH Note: 74
History Note: 74(71)
Date Established: 1974/01/01
Date of Entry: 1999/01/01
Revision Date: 2008/07/08

Half-Life MeSH Descriptor Data 2025