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Source

• The information is stored in the DWEPMA database on the data warehouse server.
• The formulary is based on the First Databank standard.
  • The version in use is not the latest version.
    • The latest version is in test, but there have been problems.
    • It contains the same drugs multiple times for different manufacturers.
• The prescription data does not always contain all the information (dosage, route, frequency, duration) as this may be added by the person who administers the drug.
• Once created, prescriptions are never altered.
  • Incorrect prescriptions are stopped and a new prescription is issued.

Mapping

• Depending on how closely the formulary sticks to the First Databank standard, it may be possible to use the ​RxNorm standard as an ontology or as a way to map the codes to SNOMEDCT.
• Dosage, route, frequency, duration can be stored in i2b2 as modifiers. This would require i2b2 to updated version 1.6.