Implementation guide for interoperable medicines

This guidance is under active development by NHS England and content may be added or updated on a regular basis.

2. Maximum dose per course

Note: This edge-case is under review as there has only been one identified use case for a maximum dose per course, and that is for Colchicine tablets. If this is verified as a single edge case then it can be implemented as a free-text instruction.
Workaround: Use a free-text `Dosage.additionalInstruction`.

A maximum dose for three scenarios is supported within the R4 Dosage structure;

  • maxDosePerPeriod - define a maximum dose over a given period of time
  • maxDosePerAdministration - defines a maximum dose per administration
  • maxDosePerLifetime - defines the maximum dose during the lifetime of the patient

Not currently supported is how to define a maximum dose per course.

With the current R4 Dosage structure, a maximum dose per course would have to be conveyed in free-text using the Dosage.additionalInstruction.

See an example for Colchicine tablets.

back to top