{
  "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": "OFF LABEL USE",
      "count": 1944
    },
    {
      "term": "PRODUCT USE IN UNAPPROVED INDICATION",
      "count": 1709
    },
    {
      "term": "MUCOSAL INFLAMMATION",
      "count": 1056
    },
    {
      "term": "DRUG INEFFECTIVE",
      "count": 1050
    },
    {
      "term": "GRAFT VERSUS HOST DISEASE",
      "count": 965
    },
    {
      "term": "VENOOCCLUSIVE LIVER DISEASE",
      "count": 919
    },
    {
      "term": "CYTOMEGALOVIRUS INFECTION",
      "count": 871
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE",
      "count": 856
    },
    {
      "term": "FEBRILE NEUTROPENIA",
      "count": 835
    },
    {
      "term": "PYREXIA",
      "count": 807
    },
    {
      "term": "CHRONIC GRAFT VERSUS HOST DISEASE",
      "count": 641
    },
    {
      "term": "CYTOMEGALOVIRUS INFECTION REACTIVATION",
      "count": 586
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE IN SKIN",
      "count": 574
    },
    {
      "term": "THROMBOCYTOPENIA",
      "count": 547
    },
    {
      "term": "INFECTION",
      "count": 545
    },
    {
      "term": "VENOOCCLUSIVE DISEASE",
      "count": 540
    },
    {
      "term": "SEPSIS",
      "count": 529
    },
    {
      "term": "DIARRHOEA",
      "count": 522
    },
    {
      "term": "PNEUMONIA",
      "count": 518
    },
    {
      "term": "RESPIRATORY FAILURE",
      "count": 460
    },
    {
      "term": "PANCYTOPENIA",
      "count": 451
    },
    {
      "term": "CYSTITIS HAEMORRHAGIC",
      "count": 449
    },
    {
      "term": "NEUTROPENIA",
      "count": 412
    },
    {
      "term": "THROMBOTIC MICROANGIOPATHY",
      "count": 410
    },
    {
      "term": "BK VIRUS INFECTION",
      "count": 373
    },
    {
      "term": "GRAFT VERSUS HOST DISEASE IN SKIN",
      "count": 355
    },
    {
      "term": "GRAFT VERSUS HOST DISEASE IN GASTROINTESTINAL TRACT",
      "count": 348
    },
    {
      "term": "MULTIPLE ORGAN DYSFUNCTION SYNDROME",
      "count": 347
    },
    {
      "term": "HYPERTENSION",
      "count": 336
    },
    {
      "term": "CYTOMEGALOVIRUS VIRAEMIA",
      "count": 324
    },
    {
      "term": "NAUSEA",
      "count": 318
    },
    {
      "term": "DEATH",
      "count": 317
    },
    {
      "term": "EPSTEIN-BARR VIRUS INFECTION",
      "count": 306
    },
    {
      "term": "SEPTIC SHOCK",
      "count": 303
    },
    {
      "term": "ACUTE KIDNEY INJURY",
      "count": 296
    },
    {
      "term": "POSTERIOR REVERSIBLE ENCEPHALOPATHY SYNDROME",
      "count": 287
    },
    {
      "term": "STOMATITIS",
      "count": 278
    },
    {
      "term": "ACUTE MYELOID LEUKAEMIA RECURRENT",
      "count": 272
    },
    {
      "term": "BACTERAEMIA",
      "count": 269
    },
    {
      "term": "POST TRANSPLANT LYMPHOPROLIFERATIVE DISORDER",
      "count": 267
    },
    {
      "term": "VOMITING",
      "count": 260
    },
    {
      "term": "DISEASE PROGRESSION",
      "count": 257
    },
    {
      "term": "RENAL FAILURE",
      "count": 255
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE IN INTESTINE",
      "count": 254
    },
    {
      "term": "APLASTIC ANAEMIA",
      "count": 250
    },
    {
      "term": "BONE MARROW FAILURE",
      "count": 233
    },
    {
      "term": "TRANSPLANT FAILURE",
      "count": 228
    },
    {
      "term": "BRONCHOPULMONARY ASPERGILLOSIS",
      "count": 224
    },
    {
      "term": "ADENOVIRUS INFECTION",
      "count": 222
    },
    {
      "term": "ANAEMIA",
      "count": 220
    },
    {
      "term": "ACUTE MYELOID LEUKAEMIA",
      "count": 206
    },
    {
      "term": "TOXICITY TO VARIOUS AGENTS",
      "count": 206
    },
    {
      "term": "INTENTIONAL PRODUCT USE ISSUE",
      "count": 202
    },
    {
      "term": "DYSPNOEA",
      "count": 198
    },
    {
      "term": "ASCITES",
      "count": 194
    },
    {
      "term": "VIRAL HAEMORRHAGIC CYSTITIS",
      "count": 190
    },
    {
      "term": "STAPHYLOCOCCAL INFECTION",
      "count": 189
    },
    {
      "term": "EPSTEIN-BARR VIRUS INFECTION REACTIVATION",
      "count": 183
    },
    {
      "term": "DRUG INEFFECTIVE FOR UNAPPROVED INDICATION",
      "count": 175
    },
    {
      "term": "SEIZURE",
      "count": 174
    },
    {
      "term": "RENAL IMPAIRMENT",
      "count": 172
    },
    {
      "term": "ACUTE RESPIRATORY DISTRESS SYNDROME",
      "count": 167
    },
    {
      "term": "PLEURAL EFFUSION",
      "count": 166
    },
    {
      "term": "ABDOMINAL PAIN",
      "count": 160
    },
    {
      "term": "MULTI-ORGAN FAILURE",
      "count": 154
    },
    {
      "term": "CONDITION AGGRAVATED",
      "count": 147
    },
    {
      "term": "HEPATIC FAILURE",
      "count": 146
    },
    {
      "term": "HUMAN HERPESVIRUS 6 INFECTION",
      "count": 146
    },
    {
      "term": "PERICARDIAL EFFUSION",
      "count": 146
    },
    {
      "term": "HERPES SIMPLEX",
      "count": 145
    },
    {
      "term": "INAPPROPRIATE ANTIDIURETIC HORMONE SECRETION",
      "count": 144
    },
    {
      "term": "BACTERIAL INFECTION",
      "count": 143
    },
    {
      "term": "PRODUCT USE ISSUE",
      "count": 142
    },
    {
      "term": "BLOOD BILIRUBIN INCREASED",
      "count": 141
    },
    {
      "term": "PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY",
      "count": 141
    },
    {
      "term": "HEADACHE",
      "count": 140
    },
    {
      "term": "FUNGAL INFECTION",
      "count": 139
    },
    {
      "term": "MYELODYSPLASTIC SYNDROME",
      "count": 138
    },
    {
      "term": "DRUG RESISTANCE",
      "count": 136
    },
    {
      "term": "CHRONIC GRAFT VERSUS HOST DISEASE IN SKIN",
      "count": 134
    },
    {
      "term": "RESPIRATORY DISTRESS",
      "count": 134
    },
    {
      "term": "GASTROINTESTINAL HAEMORRHAGE",
      "count": 133
    },
    {
      "term": "PULMONARY HAEMORRHAGE",
      "count": 132
    },
    {
      "term": "CLOSTRIDIUM DIFFICILE COLITIS",
      "count": 130
    },
    {
      "term": "DRUG INTERACTION",
      "count": 126
    },
    {
      "term": "RASH",
      "count": 125
    },
    {
      "term": "PAIN",
      "count": 123
    },
    {
      "term": "PLATELET COUNT DECREASED",
      "count": 122
    },
    {
      "term": "WEIGHT INCREASED",
      "count": 122
    },
    {
      "term": "FATIGUE",
      "count": 121
    },
    {
      "term": "ACUTE GRAFT VERSUS HOST DISEASE IN LIVER",
      "count": 119
    },
    {
      "term": "PULMONARY HYPERTENSION",
      "count": 118
    },
    {
      "term": "COUGH",
      "count": 117
    },
    {
      "term": "ENTEROCOCCAL INFECTION",
      "count": 116
    },
    {
      "term": "CANDIDA INFECTION",
      "count": 115
    },
    {
      "term": "ALANINE AMINOTRANSFERASE INCREASED",
      "count": 111
    },
    {
      "term": "HYPOTENSION",
      "count": 111
    },
    {
      "term": "INTERSTITIAL LUNG DISEASE",
      "count": 111
    },
    {
      "term": "PNEUMONIA CYTOMEGALOVIRAL",
      "count": 111
    },
    {
      "term": "DISEASE RECURRENCE",
      "count": 109
    }
  ]
}