Patient reports they were taking Amoxicillin in the past but are not taking it now

{
  "resourceType" : "MedicationStatement",
  "id" : "example004",
  "status" : "recorded",
  "medication" : {
    "concept" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "27658006",
        "display" : "Product containing amoxicillin (medicinal product)"
      }]
    }
  },
  "subject" : {
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  },
  "effectiveDateTime" : "2014-01-23",
  "dateAsserted" : "2015-02-22",
  "informationSource" : [{
    "reference" : "Patient/pat1",
    "display" : "Donald Duck"
  }],
  "note" : [{
    "text" : "Patient indicates they miss the occasional dose"
  }],
  "dosage" : {
    "renderedInstruction" : "One capsule three times daily by mouth.",
    "step" : [{
      "component" : [{
        "text" : "one capsule three times daily",
        "timing" : {
          "repeat" : {
            "frequency" : 3,
            "period" : 1,
            "periodUnit" : "d"
          }
        },
        "asNeeded" : false,
        "route" : {
          "coding" : [{
            "system" : "http://snomed.info/sct",
            "code" : "260548002",
            "display" : "Oral"
          }]
        },
        "safety" : {
          "doseLimit" : [{
            "valueQuantity" : {
              "value" : 3,
              "unit" : "capsules",
              "system" : "http://snomed.info/sct",
              "code" : "385055001"
            },
            "scope" : "period",
            "period" : {
              "value" : 1,
              "system" : "http://unitsofmeasure.org",
              "code" : "d"
            }
          }]
        }
      }]
    }]
  },
  "adherence" : {
    "code" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/CodeSystem/medication-statement-adherence",
        "code" : "not-taking",
        "display" : "Not Taking"
      }]
    },
    "reason" : {
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "266710000",
        "display" : "Drugs not taken/completed"
      }]
    }
  }
}