{
  "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": "INJECTION SITE PAIN",
      "count": 739
    },
    {
      "term": "MULTIPLE SCLEROSIS",
      "count": 606
    },
    {
      "term": "DRUG INEFFECTIVE",
      "count": 561
    },
    {
      "term": "MULTIPLE SCLEROSIS RELAPSE",
      "count": 516
    },
    {
      "term": "INJECTION SITE ERYTHEMA",
      "count": 411
    },
    {
      "term": "INJECTION SITE MASS",
      "count": 354
    },
    {
      "term": "INJECTION SITE SWELLING",
      "count": 312
    },
    {
      "term": "DYSPNOEA",
      "count": 284
    },
    {
      "term": "INJECTION SITE PRURITUS",
      "count": 260
    },
    {
      "term": "FATIGUE",
      "count": 236
    },
    {
      "term": "DIZZINESS",
      "count": 228
    },
    {
      "term": "NAUSEA",
      "count": 221
    },
    {
      "term": "HEADACHE",
      "count": 198
    },
    {
      "term": "FALL",
      "count": 197
    },
    {
      "term": "PRODUCT DOSE OMISSION ISSUE",
      "count": 193
    },
    {
      "term": "INJECTION SITE BRUISING",
      "count": 187
    },
    {
      "term": "HYPOAESTHESIA",
      "count": 185
    },
    {
      "term": "PAIN",
      "count": 183
    },
    {
      "term": "INJECTION SITE REACTION",
      "count": 177
    },
    {
      "term": "FLUSHING",
      "count": 160
    },
    {
      "term": "GAIT DISTURBANCE",
      "count": 160
    },
    {
      "term": "ASTHENIA",
      "count": 153
    },
    {
      "term": "CHILLS",
      "count": 138
    },
    {
      "term": "INJECTION SITE URTICARIA",
      "count": 136
    },
    {
      "term": "URTICARIA",
      "count": 130
    },
    {
      "term": "PRODUCT SUBSTITUTION ISSUE",
      "count": 128
    },
    {
      "term": "INJECTION SITE HAEMORRHAGE",
      "count": 124
    },
    {
      "term": "PAIN IN EXTREMITY",
      "count": 121
    },
    {
      "term": "ANXIETY",
      "count": 120
    },
    {
      "term": "TREMOR",
      "count": 119
    },
    {
      "term": "BACK PAIN",
      "count": 118
    },
    {
      "term": "URINARY TRACT INFECTION",
      "count": 118
    },
    {
      "term": "WRONG TECHNIQUE IN PRODUCT USAGE PROCESS",
      "count": 118
    },
    {
      "term": "PARAESTHESIA",
      "count": 117
    },
    {
      "term": "CHEST PAIN",
      "count": 115
    },
    {
      "term": "VOMITING",
      "count": 111
    },
    {
      "term": "CHEST DISCOMFORT",
      "count": 110
    },
    {
      "term": "PYREXIA",
      "count": 110
    },
    {
      "term": "FEELING ABNORMAL",
      "count": 106
    },
    {
      "term": "MALAISE",
      "count": 105
    },
    {
      "term": "PALPITATIONS",
      "count": 103
    },
    {
      "term": "INCORRECT DOSE ADMINISTERED",
      "count": 99
    },
    {
      "term": "DEVICE ISSUE",
      "count": 96
    },
    {
      "term": "MATERNAL EXPOSURE DURING PREGNANCY",
      "count": 96
    },
    {
      "term": "CONDITION AGGRAVATED",
      "count": 95
    },
    {
      "term": "OFF LABEL USE",
      "count": 95
    },
    {
      "term": "COVID-19",
      "count": 93
    },
    {
      "term": "MUSCLE SPASMS",
      "count": 93
    },
    {
      "term": "PRURITUS",
      "count": 92
    },
    {
      "term": "HYPERSENSITIVITY",
      "count": 91
    },
    {
      "term": "LOSS OF CONSCIOUSNESS",
      "count": 90
    },
    {
      "term": "MUSCULAR WEAKNESS",
      "count": 90
    },
    {
      "term": "PRODUCT DOSE OMISSION",
      "count": 88
    },
    {
      "term": "ERYTHEMA",
      "count": 86
    },
    {
      "term": "HOSPITALISATION",
      "count": 86
    },
    {
      "term": "FEELING HOT",
      "count": 81
    },
    {
      "term": "WRONG DEVICE USED",
      "count": 77
    },
    {
      "term": "INJECTION SITE WARMTH",
      "count": 76
    },
    {
      "term": "RASH",
      "count": 74
    },
    {
      "term": "DEATH",
      "count": 73
    },
    {
      "term": "INJECTION SITE INDURATION",
      "count": 73
    },
    {
      "term": "VISUAL IMPAIRMENT",
      "count": 73
    },
    {
      "term": "DIARRHOEA",
      "count": 72
    },
    {
      "term": "ARTHRALGIA",
      "count": 71
    },
    {
      "term": "BALANCE DISORDER",
      "count": 70
    },
    {
      "term": "DEPRESSION",
      "count": 68
    },
    {
      "term": "HYPERHIDROSIS",
      "count": 68
    },
    {
      "term": "PRODUCT QUALITY ISSUE",
      "count": 68
    },
    {
      "term": "MEMORY IMPAIRMENT",
      "count": 65
    },
    {
      "term": "SEIZURE",
      "count": 63
    },
    {
      "term": "NEEDLE ISSUE",
      "count": 62
    },
    {
      "term": "PNEUMONIA",
      "count": 62
    },
    {
      "term": "HEART RATE INCREASED",
      "count": 61
    },
    {
      "term": "SYNCOPE",
      "count": 61
    },
    {
      "term": "THERAPY INTERRUPTED",
      "count": 55
    },
    {
      "term": "WEIGHT DECREASED",
      "count": 55
    },
    {
      "term": "WEIGHT INCREASED",
      "count": 55
    },
    {
      "term": "INSOMNIA",
      "count": 52
    },
    {
      "term": "VISION BLURRED",
      "count": 50
    },
    {
      "term": "CONFUSIONAL STATE",
      "count": 49
    },
    {
      "term": "CONTUSION",
      "count": 48
    },
    {
      "term": "ABDOMINAL DISCOMFORT",
      "count": 47
    },
    {
      "term": "NASOPHARYNGITIS",
      "count": 46
    },
    {
      "term": "BURNING SENSATION",
      "count": 45
    },
    {
      "term": "COUGH",
      "count": 45
    },
    {
      "term": "INJECTION SITE RASH",
      "count": 45
    },
    {
      "term": "ANAPHYLACTIC REACTION",
      "count": 44
    },
    {
      "term": "INFLUENZA LIKE ILLNESS",
      "count": 44
    },
    {
      "term": "INJECTION SITE DISCOLOURATION",
      "count": 44
    },
    {
      "term": "ADVERSE DRUG REACTION",
      "count": 43
    },
    {
      "term": "THERAPY CESSATION",
      "count": 43
    },
    {
      "term": "SWELLING FACE",
      "count": 41
    },
    {
      "term": "ABDOMINAL PAIN",
      "count": 40
    },
    {
      "term": "DRUG ADMINISTERED IN WRONG DEVICE",
      "count": 40
    },
    {
      "term": "INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION",
      "count": 40
    },
    {
      "term": "SOMNOLENCE",
      "count": 40
    },
    {
      "term": "ABDOMINAL PAIN UPPER",
      "count": 39
    },
    {
      "term": "DISEASE PROGRESSION",
      "count": 39
    },
    {
      "term": "DRUG HYPERSENSITIVITY",
      "count": 39
    },
    {
      "term": "MUSCULOSKELETAL STIFFNESS",
      "count": 39
    }
  ]
}