{
  "meta": {
    "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.",
    "terms": "https://open.fda.gov/terms/",
    "license": "https://open.fda.gov/license/",
    "last_updated": "2026-04-28"
  },
  "results": [
    {
      "term": "PYREXIA",
      "count": 141
    },
    {
      "term": "MUCOSAL INFLAMMATION",
      "count": 134
    },
    {
      "term": "NEUTROPENIA",
      "count": 122
    },
    {
      "term": "FEBRILE NEUTROPENIA",
      "count": 116
    },
    {
      "term": "DIARRHOEA",
      "count": 110
    },
    {
      "term": "PNEUMONIA",
      "count": 107
    },
    {
      "term": "SEPSIS",
      "count": 107
    },
    {
      "term": "THROMBOCYTOPENIA",
      "count": 107
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE",
      "count": 104
    },
    {
      "term": "DRUG INEFFECTIVE",
      "count": 98
    },
    {
      "term": "DEATH",
      "count": 96
    },
    {
      "term": "PANCYTOPENIA",
      "count": 95
    },
    {
      "term": "TOXICITY TO VARIOUS AGENTS",
      "count": 85
    },
    {
      "term": "ANAEMIA",
      "count": 83
    },
    {
      "term": "NAUSEA",
      "count": 77
    },
    {
      "term": "MULTI-ORGAN FAILURE",
      "count": 76
    },
    {
      "term": "FATIGUE",
      "count": 75
    },
    {
      "term": "GRAFT VERSUS HOST DISEASE",
      "count": 70
    },
    {
      "term": "MULTIPLE MYELOMA",
      "count": 70
    },
    {
      "term": "OFF LABEL USE",
      "count": 67
    },
    {
      "term": "RENAL FAILURE",
      "count": 67
    },
    {
      "term": "INFECTION",
      "count": 65
    },
    {
      "term": "CHRONIC GRAFT VERSUS HOST DISEASE",
      "count": 63
    },
    {
      "term": "MYELODYSPLASTIC SYNDROME",
      "count": 63
    },
    {
      "term": "DYSPNOEA",
      "count": 59
    },
    {
      "term": "NEUROPATHY PERIPHERAL",
      "count": 58
    },
    {
      "term": "THROMBOTIC MICROANGIOPATHY",
      "count": 57
    },
    {
      "term": "ACUTE MYELOID LEUKAEMIA",
      "count": 54
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE IN SKIN",
      "count": 53
    },
    {
      "term": "RESPIRATORY FAILURE",
      "count": 50
    },
    {
      "term": "PLATELET COUNT DECREASED",
      "count": 49
    },
    {
      "term": "VOMITING",
      "count": 49
    },
    {
      "term": "ASTHENIA",
      "count": 48
    },
    {
      "term": "GENERAL PHYSICAL HEALTH DETERIORATION",
      "count": 47
    },
    {
      "term": "HYPOTENSION",
      "count": 47
    },
    {
      "term": "DISEASE PROGRESSION",
      "count": 46
    },
    {
      "term": "RENAL FAILURE ACUTE",
      "count": 46
    },
    {
      "term": "SEPTIC SHOCK",
      "count": 44
    },
    {
      "term": "VENOOCCLUSIVE DISEASE",
      "count": 42
    },
    {
      "term": "CONSTIPATION",
      "count": 41
    },
    {
      "term": "HYPERTENSION",
      "count": 40
    },
    {
      "term": "PLEURAL EFFUSION",
      "count": 40
    },
    {
      "term": "OEDEMA PERIPHERAL",
      "count": 39
    },
    {
      "term": "OSTEONECROSIS OF JAW",
      "count": 39
    },
    {
      "term": "PRODUCT USE IN UNAPPROVED INDICATION",
      "count": 39
    },
    {
      "term": "GASTROINTESTINAL TOXICITY",
      "count": 38
    },
    {
      "term": "RASH",
      "count": 38
    },
    {
      "term": "DRUG TOXICITY",
      "count": 37
    },
    {
      "term": "DEHYDRATION",
      "count": 36
    },
    {
      "term": "HEPATOTOXICITY",
      "count": 36
    },
    {
      "term": "VITREOUS HAEMORRHAGE",
      "count": 36
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE IN INTESTINE",
      "count": 34
    },
    {
      "term": "ACUTE RESPIRATORY DISTRESS SYNDROME",
      "count": 34
    },
    {
      "term": "DECREASED APPETITE",
      "count": 34
    },
    {
      "term": "HAEMATOTOXICITY",
      "count": 34
    },
    {
      "term": "PAIN",
      "count": 34
    },
    {
      "term": "CYTOMEGALOVIRUS INFECTION",
      "count": 33
    },
    {
      "term": "DEEP VEIN THROMBOSIS",
      "count": 33
    },
    {
      "term": "STEM CELL TRANSPLANT",
      "count": 32
    },
    {
      "term": "HERPES ZOSTER",
      "count": 31
    },
    {
      "term": "RETINAL PIGMENT EPITHELIOPATHY",
      "count": 31
    },
    {
      "term": "VENOOCCLUSIVE LIVER DISEASE",
      "count": 31
    },
    {
      "term": "WHITE BLOOD CELL COUNT DECREASED",
      "count": 31
    },
    {
      "term": "ATRIAL FIBRILLATION",
      "count": 30
    },
    {
      "term": "EPSTEIN-BARR VIRUS INFECTION",
      "count": 30
    },
    {
      "term": "EYELID OEDEMA",
      "count": 29
    },
    {
      "term": "GASTROINTESTINAL HAEMORRHAGE",
      "count": 29
    },
    {
      "term": "ADENOVIRUS INFECTION",
      "count": 28
    },
    {
      "term": "EYELID PTOSIS",
      "count": 28
    },
    {
      "term": "RENAL IMPAIRMENT",
      "count": 28
    },
    {
      "term": "STOMATITIS",
      "count": 28
    },
    {
      "term": "BONE MARROW FAILURE",
      "count": 27
    },
    {
      "term": "CARDIAC FAILURE CONGESTIVE",
      "count": 27
    },
    {
      "term": "INTERSTITIAL LUNG DISEASE",
      "count": 27
    },
    {
      "term": "BLOOD CREATININE INCREASED",
      "count": 26
    },
    {
      "term": "CARDIAC FAILURE",
      "count": 26
    },
    {
      "term": "CONFUSIONAL STATE",
      "count": 26
    },
    {
      "term": "NEUTROPHIL COUNT DECREASED",
      "count": 26
    },
    {
      "term": "ABDOMINAL PAIN",
      "count": 25
    },
    {
      "term": "EXTRAOCULAR MUSCLE DISORDER",
      "count": 25
    },
    {
      "term": "HAEMOGLOBIN DECREASED",
      "count": 25
    },
    {
      "term": "TACHYCARDIA",
      "count": 25
    },
    {
      "term": "DIZZINESS",
      "count": 24
    },
    {
      "term": "HYPOKALAEMIA",
      "count": 24
    },
    {
      "term": "PULMONARY EMBOLISM",
      "count": 24
    },
    {
      "term": "CARDIAC ARREST",
      "count": 23
    },
    {
      "term": "FALL",
      "count": 23
    },
    {
      "term": "LEUKOPENIA",
      "count": 23
    },
    {
      "term": "ANXIETY",
      "count": 22
    },
    {
      "term": "CEREBRAL HAEMORRHAGE",
      "count": 22
    },
    {
      "term": "CONVULSION",
      "count": 22
    },
    {
      "term": "CYTOMEGALOVIRUS VIRAEMIA",
      "count": 22
    },
    {
      "term": "MENTAL STATUS CHANGES",
      "count": 22
    },
    {
      "term": "PULMONARY OEDEMA",
      "count": 22
    },
    {
      "term": "ACUTE KIDNEY INJURY",
      "count": 21
    },
    {
      "term": "BK VIRUS INFECTION",
      "count": 21
    },
    {
      "term": "CELLULITIS",
      "count": 21
    },
    {
      "term": "CYTOMEGALOVIRUS TEST POSITIVE",
      "count": 20
    },
    {
      "term": "HYPOXIA",
      "count": 20
    },
    {
      "term": "OEDEMA",
      "count": 20
    }
  ]
}