The global WHO database managed by
UMC is being improved on the basis of the proposed “Database management
and classification for coding of herbal medicines”, of which the previously mentioned HATC is one part (Annex 6). Data-mining techniques that have proved effective on the very large numbers of reports for other medicines will be used for signal detection on reports for herbal medicines. The success of these techniques depends on the volume and quality of data submitted by national pharmacovigilance centres.