{
  "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": "MULTIPLE SCLEROSIS RELAPSE",
      "count": 640
    },
    {
      "term": "FATIGUE",
      "count": 515
    },
    {
      "term": "LYMPHOPENIA",
      "count": 465
    },
    {
      "term": "MULTIPLE SCLEROSIS",
      "count": 332
    },
    {
      "term": "HEADACHE",
      "count": 299
    },
    {
      "term": "DRUG INEFFECTIVE",
      "count": 287
    },
    {
      "term": "DIZZINESS",
      "count": 243
    },
    {
      "term": "LYMPHOCYTE COUNT DECREASED",
      "count": 217
    },
    {
      "term": "HYPOAESTHESIA",
      "count": 213
    },
    {
      "term": "GAIT DISTURBANCE",
      "count": 189
    },
    {
      "term": "NAUSEA",
      "count": 177
    },
    {
      "term": "PAIN",
      "count": 173
    },
    {
      "term": "COVID-19",
      "count": 171
    },
    {
      "term": "MALAISE",
      "count": 171
    },
    {
      "term": "OFF LABEL USE",
      "count": 159
    },
    {
      "term": "PYREXIA",
      "count": 152
    },
    {
      "term": "PARAESTHESIA",
      "count": 147
    },
    {
      "term": "PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY",
      "count": 146
    },
    {
      "term": "ASTHENIA",
      "count": 144
    },
    {
      "term": "VISUAL IMPAIRMENT",
      "count": 134
    },
    {
      "term": "FALL",
      "count": 131
    },
    {
      "term": "CONDITION AGGRAVATED",
      "count": 126
    },
    {
      "term": "VISION BLURRED",
      "count": 120
    },
    {
      "term": "MUSCULAR WEAKNESS",
      "count": 118
    },
    {
      "term": "WHITE BLOOD CELL COUNT DECREASED",
      "count": 115
    },
    {
      "term": "EXPANDED DISABILITY STATUS SCALE SCORE INCREASED",
      "count": 114
    },
    {
      "term": "URINARY TRACT INFECTION",
      "count": 114
    },
    {
      "term": "DYSPNOEA",
      "count": 110
    },
    {
      "term": "BACK PAIN",
      "count": 109
    },
    {
      "term": "DIARRHOEA",
      "count": 107
    },
    {
      "term": "MEMORY IMPAIRMENT",
      "count": 104
    },
    {
      "term": "PAIN IN EXTREMITY",
      "count": 103
    },
    {
      "term": "SOMNOLENCE",
      "count": 103
    },
    {
      "term": "HYPERTENSION",
      "count": 102
    },
    {
      "term": "BALANCE DISORDER",
      "count": 101
    },
    {
      "term": "CENTRAL NERVOUS SYSTEM LESION",
      "count": 100
    },
    {
      "term": "IMMUNE RECONSTITUTION INFLAMMATORY SYNDROME",
      "count": 98
    },
    {
      "term": "MACULAR OEDEMA",
      "count": 97
    },
    {
      "term": "REBOUND EFFECT",
      "count": 97
    },
    {
      "term": "COUGH",
      "count": 94
    },
    {
      "term": "FEELING ABNORMAL",
      "count": 93
    },
    {
      "term": "HERPES ZOSTER",
      "count": 91
    },
    {
      "term": "NASOPHARYNGITIS",
      "count": 87
    },
    {
      "term": "HEART RATE DECREASED",
      "count": 86
    },
    {
      "term": "DISEASE PROGRESSION",
      "count": 84
    },
    {
      "term": "CONFUSIONAL STATE",
      "count": 83
    },
    {
      "term": "VOMITING",
      "count": 82
    },
    {
      "term": "BREAST CANCER",
      "count": 78
    },
    {
      "term": "ALANINE AMINOTRANSFERASE INCREASED",
      "count": 76
    },
    {
      "term": "CHEST PAIN",
      "count": 75
    },
    {
      "term": "INSOMNIA",
      "count": 75
    },
    {
      "term": "PNEUMONIA",
      "count": 75
    },
    {
      "term": "PRODUCT DOSE OMISSION ISSUE",
      "count": 70
    },
    {
      "term": "LEUKOPENIA",
      "count": 68
    },
    {
      "term": "TREMOR",
      "count": 68
    },
    {
      "term": "FOETAL EXPOSURE DURING PREGNANCY",
      "count": 66
    },
    {
      "term": "HEMIPARESIS",
      "count": 66
    },
    {
      "term": "HEPATIC ENZYME INCREASED",
      "count": 65
    },
    {
      "term": "ABDOMINAL PAIN",
      "count": 64
    },
    {
      "term": "BLOOD PRESSURE INCREASED",
      "count": 64
    },
    {
      "term": "BRADYCARDIA",
      "count": 64
    },
    {
      "term": "DEPRESSION",
      "count": 64
    },
    {
      "term": "DRUG INTOLERANCE",
      "count": 64
    },
    {
      "term": "INFLUENZA",
      "count": 64
    },
    {
      "term": "DISEASE RECURRENCE",
      "count": 63
    },
    {
      "term": "MENINGITIS CRYPTOCOCCAL",
      "count": 63
    },
    {
      "term": "PALPITATIONS",
      "count": 63
    },
    {
      "term": "STRESS",
      "count": 63
    },
    {
      "term": "BASAL CELL CARCINOMA",
      "count": 62
    },
    {
      "term": "GAMMA-GLUTAMYLTRANSFERASE INCREASED",
      "count": 62
    },
    {
      "term": "COGNITIVE DISORDER",
      "count": 61
    },
    {
      "term": "RASH",
      "count": 59
    },
    {
      "term": "MUSCLE SPASMS",
      "count": 58
    },
    {
      "term": "RELAPSING-REMITTING MULTIPLE SCLEROSIS",
      "count": 58
    },
    {
      "term": "INFLUENZA LIKE ILLNESS",
      "count": 57
    },
    {
      "term": "ABDOMINAL DISCOMFORT",
      "count": 56
    },
    {
      "term": "ATAXIA",
      "count": 56
    },
    {
      "term": "WEIGHT DECREASED",
      "count": 56
    },
    {
      "term": "CHEST DISCOMFORT",
      "count": 55
    },
    {
      "term": "ARTHRALGIA",
      "count": 54
    },
    {
      "term": "DECREASED APPETITE",
      "count": 54
    },
    {
      "term": "EXPOSURE DURING PREGNANCY",
      "count": 54
    },
    {
      "term": "WEIGHT INCREASED",
      "count": 54
    },
    {
      "term": "ALOPECIA",
      "count": 52
    },
    {
      "term": "ANXIETY",
      "count": 52
    },
    {
      "term": "CRYPTOCOCCOSIS",
      "count": 52
    },
    {
      "term": "CHILLS",
      "count": 51
    },
    {
      "term": "INFECTION",
      "count": 50
    },
    {
      "term": "OPTIC NEURITIS",
      "count": 50
    },
    {
      "term": "PRODUCT USE IN UNAPPROVED INDICATION",
      "count": 50
    },
    {
      "term": "ASPARTATE AMINOTRANSFERASE INCREASED",
      "count": 48
    },
    {
      "term": "DEATH",
      "count": 48
    },
    {
      "term": "OROPHARYNGEAL PAIN",
      "count": 48
    },
    {
      "term": "APHASIA",
      "count": 47
    },
    {
      "term": "DECREASED IMMUNE RESPONSIVENESS",
      "count": 47
    },
    {
      "term": "PRODUCT SUBSTITUTION ISSUE",
      "count": 47
    },
    {
      "term": "PRURITUS",
      "count": 46
    },
    {
      "term": "TREATMENT FAILURE",
      "count": 45
    },
    {
      "term": "VACCINATION FAILURE",
      "count": 45
    },
    {
      "term": "SENSORY DISTURBANCE",
      "count": 43
    }
  ]
}