http://hl7.org/fhir/StructureDefinition/Dosage|4.0.1

Base StructureDefinition for Dosage Type: Indicates how the medication is/was taken or should be taken by the patient.

Structure JSON Dependencies FHIRSchema Other Versions Dependant (0)Elements Summary

Name	Flags	Card	Type	Description & Constraints
Dosage		0..*		How the medication is/was taken or should be taken
sequence	Σ	0..1	integer	The order of the dosage instructions
text	Σ	0..1	string	Free text dosage instructions e.g. SIG
additionalInstruction	Σ	0..*	CodeableConcept	Supplemental instruction or warnings to the patient - e.g. \"with meals\", \"may cause drowsiness\" AdditionalInstruction (example)
patientInstruction	Σ	0..1	string	Patient or consumer oriented instructions
timing	Σ	0..1	Timing	When medication should be administered
asNeeded[x]	Σ	0..1		Take \"as needed\" (for x) MedicationAsNeededReason (example)
asNeededBoolean	Σ	0..1	boolean	MedicationAsNeededReason (example)
asNeededCodeableConcept	Σ	0..1	CodeableConcept	MedicationAsNeededReason (example)
site	Σ	0..1	CodeableConcept	Body site to administer to MedicationAdministrationSite (example)
route	Σ	0..1	CodeableConcept	How drug should enter body RouteOfAdministration (example)
method	Σ	0..1	CodeableConcept	Technique for administering medication MedicationAdministrationMethod (example)
doseAndRate	Σ	0..*	Element	Amount of medication administered
type	Σ	0..1	CodeableConcept	The kind of dose or rate specified DoseAndRateType (example)
dose[x]	Σ	0..1		Amount of medication per dose
doseRange	Σ	0..1	Range
doseQuantity	Σ	0..1	Quantity
rate[x]	Σ	0..1		Amount of medication per unit of time
rateRatio	Σ	0..1	Ratio
rateRange	Σ	0..1	Range
rateQuantity	Σ	0..1	Quantity
maxDosePerPeriod	Σ	0..1	Ratio	Upper limit on medication per unit of time
maxDosePerAdministration	Σ	0..1	Quantity	Upper limit on medication per administration
maxDosePerLifetime	Σ	0..1	Quantity	Upper limit on medication per lifetime of the patient