A maximum dose for three scenarios is supported within the STU3 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 STU3 Dosage structure, a maximum dose per course would have to be conveyed in free-text using the Dosage.additionalInstruction.