Dosage with a Pre-Condition - Alprazolam (id = "medadmin0311")

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<MedicationAdministration xmlns="http://hl7.org/fhir"> 
  <id value="medadmin0311"/> 
  <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"><p> <b> Generated Narrative: MedicationAdministration</b> <a name="medadmin0311"> </a> </p> <div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px
       solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Resource MedicationAdministration &quot;medadmin0311&quot; </p> </div> <p> <b> status</b> : completed</p> <h3> Medications</h3> <table class="grid"><tr> <td> -</td> <td> <b> Reference</b> </td> </tr> <tr> <td> *</td> <td> <a name="med0304"> </a> <blockquote> <p/>  <p> <a name="med0304"> </a> </p> <p> <b> code</b> : Alprazolam 0.25mg Oral Tablet <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="http://terminology.hl7.org/3.1.0/CodeSystem-v3-rxNorm.html">RxNorm</a> #308047)</span> </p> </blockquote> </td> </tr> </table> <p> <b> subject</b> : <a href="patient-example-a.html">Patient/pat1: Donald Duck</a>  &quot;Donald DUCK&quot;</p> <p> <b> occurence</b> : 2015-01-15T22:03:00+01:00 --&gt; 2015-01-16T02:03:00+01:00</p> <h3> Performers</h3> <table class="grid"><tr> <td> -</td> <td> <b> Actor</b> </td> </tr> <tr> <td> *</td> <td> <a href="practitioner-example-f007-sh.html">Practitioner/f007: Patrick Pump</a>  &quot;Simone HEPS&quot;</td> </tr> </table> <h3> Reasons</h3> <table class="grid"><tr> <td> -</td> <td> <b> Concept</b> </td> </tr> <tr> <td> *</td> <td> Dysmenorrhea <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="https://browser.ihtsdotools.org/">SNOMED CT</a> #266599000)</span> </td> </tr> </table> <p> <b> request</b> : <a href="medicationrequest0305.html">MedicationRequest/medrx0305</a> </p> <h3> Dosages</h3> <table class="grid"><tr> <td> -</td> <td> <b> Text</b> </td> <td> <b> Route</b> </td> <td> <b> Dose</b> </td> </tr> <tr> <td> *</td> <td> 0.25mg PO every 6-12 hours as needed for menses from Jan 15-20, 2015.  Do not exceed more
             than 4mg per day</td> <td> Oral Route <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="https://browser.ihtsdotools.org/">SNOMED CT</a> #26643006)</span> </td> <td> 1 TAB<span style="background: LightGoldenRodYellow"> (Details: http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm code TAB = 'Tablet')</span> </td> </tr> </table> </div> </text> <contained> 
    <Medication> 
      <id value="med0304"/> 
      <code> 
        <coding> 
          <system value="http://www.nlm.nih.gov/research/umls/rxnorm"/> 
          <code value="308047"/> 
          <display value="Alprazolam 0.25mg Oral Tablet"/> 
        </coding> 
      </code> 
    </Medication> 
  </contained> 
  <status value="completed"/> 
  <medication> 
  <reference> 
    <reference value="#med0304"/> 
  </reference> 
  </medication> 
 <subject> 
   <reference value="Patient/pat1"/> 
   <display value="Donald Duck"/>  
  </subject> 
  <occurencePeriod> 
  <start value="2015-01-15T22:03:00+01:00"/> 
   <end value="2015-01-16T02:03:00+01:00"/> 
</occurencePeriod> 
 <performer> 
    <actor> 
      <reference value="Practitioner/f007"/> 
      <display value="Patrick Pump"/> 
    </actor> 
 </performer> 
  <reason> 
    <concept> 
      <coding> 
        <system value="http://snomed.info/sct"/> 
        <code value="266599000"/> 
        <display value="Dysmenorrhea"/> 
      </coding> 
    </concept> 
  </reason> 
  <request> 
    <reference value="MedicationRequest/medrx0305"/> 
  </request> 
  <dosage> 
    <text value="0.25mg PO every 6-12 hours as needed for menses from Jan 15-20, 2015.  Do not exceed more
     than 4mg per day"/> 
    <route> 
      <coding> 
        <system value="http://snomed.info/sct"/> 
        <code value="26643006"/> 
        <display value="Oral Route"/> 
      </coding> 
    </route> 
    <dose> 
      <value value="1"/> 
      <unit value="TAB"/> 
      <system value="http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm"/> 
      <code value="TAB"/>  
    </dose> 
  </dosage> 
</MedicationAdministration>