Existing Wording
MedicationPrescription.dosageInstruction.scheduled[x] as Type dateTime|Period|Timing

Cannot see how to express variable dosing (loading dose, etc)

Comments
from MU 2 Test Data: Azithromycin 250 MG Oral Capsule, [RxNorm: 141962], Take 500 mg on day 1, then 250 mg tablet once daily for next 4 days, Test date, Active

Grahame's Comments
no opinion