[ {
  "sequence" : 1,
  "text" : "Take 1-2 tablets once daily at bedtime as needed for restless legs",
  "additionalInstruction" : [ {
    "text" : "Take at bedtime"
  } ],
  "timing" : {
    "repeat" : {
      "frequency" : 1,
      "period" : 1,
      "periodUnit" : "d"
    }
  },
  "asNeededFor" : [ {
    "coding" : [ {
      "system" : "http://snomed.info/sct",
      "code" : "32914008",
      "display" : "Restless Legs"
    } ]
  } ],
  "route" : {
    "coding" : [ {
      "system" : "http://snomed.info/sct",
      "code" : "26643006",
      "display" : "Oral Route"
    } ]
  },
  "doseAndRate" : [ {
    "type" : {
      "coding" : [ {
        "system" : "http://terminology.hl7.org/CodeSystem/dose-rate-type",
        "code" : "ordered",
        "display" : "Ordered"
      } ]
    },
    "doseRange" : {
      "low" : {
        "value" : 1,
        "unit" : "TAB",
        "system" : "http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm",
        "code" : "TAB"
      },
      "high" : {
        "value" : 2,
        "unit" : "TAB",
        "system" : "http://terminology.hl7.org/CodeSystem/v3-orderableDrugForm",
        "code" : "TAB"
      }
    }
  } ]
} ]