Generic Formulation - Nystatin 100,000 u/ml suspension

{
  "resourceType" : "Medication",
  "id" : "med0312",
  "contained" : [{
    "resourceType" : "Substance",
    "id" : "sub02",
    "instance" : false,
    "code" : {
      "concept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "387048002",
          "display" : "Nystatin (substance)"
        }]
      }
    }
  }],
  "code" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "324689003",
      "display" : "Product containing precisely nystatin 100000 unit/1 milliliter conventional release oral suspension (clinical drug)"
    }]
  },
  "doseForm" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "385024007",
      "display" : "Oral suspension"
    }]
  },
  "ingredient" : [{
    "item" : {
      "reference" : {
        "reference" : "#sub02"
      }
    },
    "strengthRatio" : {
      "numerator" : {
        "value" : 100000,
        "system" : "http://unitsofmeasure.org",
        "code" : "[IU]"
      },
      "denominator" : {
        "value" : 1,
        "system" : "http://unitsofmeasure.org",
        "code" : "mL"
      }
    }
  }]
}