Unified Medical Language System® (UMLS®)
MedDRA Japanese Source Information
This is the Japanese translation of the Medical Dictionary for Regulatory Activities (MedDRA).
For more information about MedDRA in the Metathesaurus, see the MedDRA source synopsis.
Metathesaurus Update Frequency
The Japanese translation of MedDRA is updated twice per year in the Metathesaurus, in conjunction with MedDRA.