<dosage xmlns="http://hl7.org/fhir">
    <text value="Use two puffs twice a day" />
    <additionalInstruction>
        <text value="Shake well" />
    </additionalInstruction>
    <timing>
        <repeat>
            <frequency value="2" />
            <period value="1" />
            <periodUnit value="d" />
        </repeat>
    </timing>
    <doseAndRate>
        <type>
            <coding>
                <system value="http://terminology.hl7.org/CodeSystem/dose-rate-type" />
                <code value="ordered" />
                <display value="Ordered" />
            </coding>
        </type>
        <doseQuantity>
            <value value="2" />
            <unit value="puffs" />
            <system value="http://snomed.info/sct" />
            <code value="415215001" />
        </doseQuantity>
    </doseAndRate>
</dosage>