{
  "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": "DRUG INEFFECTIVE",
      "count": 680
    },
    {
      "term": "CONVULSION",
      "count": 405
    },
    {
      "term": "SEIZURE",
      "count": 383
    },
    {
      "term": "DRUG INTERACTION",
      "count": 317
    },
    {
      "term": "TOXICITY TO VARIOUS AGENTS",
      "count": 268
    },
    {
      "term": "FALL",
      "count": 178
    },
    {
      "term": "DIZZINESS",
      "count": 174
    },
    {
      "term": "EPILEPSY",
      "count": 157
    },
    {
      "term": "PYREXIA",
      "count": 157
    },
    {
      "term": "STEVENS-JOHNSON SYNDROME",
      "count": 152
    },
    {
      "term": "HEADACHE",
      "count": 140
    },
    {
      "term": "OFF LABEL USE",
      "count": 140
    },
    {
      "term": "HYPOTENSION",
      "count": 132
    },
    {
      "term": "SOMNOLENCE",
      "count": 132
    },
    {
      "term": "DRUG REACTION WITH EOSINOPHILIA AND SYSTEMIC SYMPTOMS",
      "count": 126
    },
    {
      "term": "NAUSEA",
      "count": 126
    },
    {
      "term": "ATAXIA",
      "count": 124
    },
    {
      "term": "ANTICONVULSANT DRUG LEVEL DECREASED",
      "count": 121
    },
    {
      "term": "RASH",
      "count": 118
    },
    {
      "term": "CONFUSIONAL STATE",
      "count": 116
    },
    {
      "term": "DRUG HYPERSENSITIVITY",
      "count": 116
    },
    {
      "term": "CONDITION AGGRAVATED",
      "count": 115
    },
    {
      "term": "STATUS EPILEPTICUS",
      "count": 115
    },
    {
      "term": "FATIGUE",
      "count": 112
    },
    {
      "term": "VOMITING",
      "count": 112
    },
    {
      "term": "GAIT DISTURBANCE",
      "count": 105
    },
    {
      "term": "BALANCE DISORDER",
      "count": 97
    },
    {
      "term": "ANTICONVULSANT DRUG LEVEL INCREASED",
      "count": 94
    },
    {
      "term": "TREMOR",
      "count": 93
    },
    {
      "term": "MALAISE",
      "count": 90
    },
    {
      "term": "ASTHENIA",
      "count": 85
    },
    {
      "term": "DYSARTHRIA",
      "count": 83
    },
    {
      "term": "NYSTAGMUS",
      "count": 83
    },
    {
      "term": "DEATH",
      "count": 81
    },
    {
      "term": "ANTICONVULSANT DRUG LEVEL BELOW THERAPEUTIC",
      "count": 79
    },
    {
      "term": "PNEUMONIA",
      "count": 79
    },
    {
      "term": "DRUG LEVEL DECREASED",
      "count": 78
    },
    {
      "term": "GRAND MAL CONVULSION",
      "count": 78
    },
    {
      "term": "PHARMACEUTICAL PRODUCT COMPLAINT",
      "count": 72
    },
    {
      "term": "PRODUCT SUBSTITUTION ISSUE",
      "count": 72
    },
    {
      "term": "FEELING ABNORMAL",
      "count": 71
    },
    {
      "term": "DYSPNOEA",
      "count": 70
    },
    {
      "term": "PAIN",
      "count": 69
    },
    {
      "term": "TOXIC EPIDERMAL NECROLYSIS",
      "count": 69
    },
    {
      "term": "LOSS OF CONSCIOUSNESS",
      "count": 68
    },
    {
      "term": "BRADYCARDIA",
      "count": 67
    },
    {
      "term": "DIARRHOEA",
      "count": 67
    },
    {
      "term": "MEMORY IMPAIRMENT",
      "count": 64
    },
    {
      "term": "WEIGHT DECREASED",
      "count": 64
    },
    {
      "term": "CARDIAC ARREST",
      "count": 61
    },
    {
      "term": "INSOMNIA",
      "count": 60
    },
    {
      "term": "OVERDOSE",
      "count": 60
    },
    {
      "term": "DRUG TOXICITY",
      "count": 59
    },
    {
      "term": "PRURITUS",
      "count": 59
    },
    {
      "term": "GENERALISED TONIC-CLONIC SEIZURE",
      "count": 56
    },
    {
      "term": "DEPRESSION",
      "count": 55
    },
    {
      "term": "URINARY TRACT INFECTION",
      "count": 53
    },
    {
      "term": "NEUROPATHY PERIPHERAL",
      "count": 51
    },
    {
      "term": "DRUG INEFFECTIVE FOR UNAPPROVED INDICATION",
      "count": 50
    },
    {
      "term": "DRUG LEVEL INCREASED",
      "count": 49
    },
    {
      "term": "ERYTHEMA",
      "count": 49
    },
    {
      "term": "CEREBROVASCULAR ACCIDENT",
      "count": 48
    },
    {
      "term": "DRUG INTOLERANCE",
      "count": 48
    },
    {
      "term": "DRUG RASH WITH EOSINOPHILIA AND SYSTEMIC SYMPTOMS",
      "count": 47
    },
    {
      "term": "HYPOAESTHESIA",
      "count": 45
    },
    {
      "term": "RENAL FAILURE",
      "count": 44
    },
    {
      "term": "SEPSIS",
      "count": 44
    },
    {
      "term": "AGGRESSION",
      "count": 43
    },
    {
      "term": "ANXIETY",
      "count": 43
    },
    {
      "term": "ERYTHEMA MULTIFORME",
      "count": 43
    },
    {
      "term": "ALANINE AMINOTRANSFERASE INCREASED",
      "count": 42
    },
    {
      "term": "ARTHRALGIA",
      "count": 42
    },
    {
      "term": "ANAEMIA",
      "count": 41
    },
    {
      "term": "COUGH",
      "count": 41
    },
    {
      "term": "HYPERHIDROSIS",
      "count": 41
    },
    {
      "term": "HYPERSENSITIVITY",
      "count": 41
    },
    {
      "term": "ANTICONVULSANT DRUG LEVEL ABOVE THERAPEUTIC",
      "count": 40
    },
    {
      "term": "DEPRESSED LEVEL OF CONSCIOUSNESS",
      "count": 40
    },
    {
      "term": "MUSCULAR WEAKNESS",
      "count": 40
    },
    {
      "term": "DYSPHAGIA",
      "count": 39
    },
    {
      "term": "HALLUCINATION",
      "count": 39
    },
    {
      "term": "VISION BLURRED",
      "count": 39
    },
    {
      "term": "CONSTIPATION",
      "count": 38
    },
    {
      "term": "RESPIRATORY FAILURE",
      "count": 38
    },
    {
      "term": "COMA",
      "count": 36
    },
    {
      "term": "HEAD INJURY",
      "count": 36
    },
    {
      "term": "PAIN IN EXTREMITY",
      "count": 36
    },
    {
      "term": "SPEECH DISORDER",
      "count": 36
    },
    {
      "term": "DYSKINESIA",
      "count": 35
    },
    {
      "term": "MEDICATION ERROR",
      "count": 35
    },
    {
      "term": "AGITATION",
      "count": 34
    },
    {
      "term": "AMNESIA",
      "count": 34
    },
    {
      "term": "ACUTE KIDNEY INJURY",
      "count": 33
    },
    {
      "term": "PETIT MAL EPILEPSY",
      "count": 33
    },
    {
      "term": "THROMBOCYTOPENIA",
      "count": 33
    },
    {
      "term": "DECREASED APPETITE",
      "count": 32
    },
    {
      "term": "LETHARGY",
      "count": 32
    },
    {
      "term": "NEUTROPENIA",
      "count": 32
    },
    {
      "term": "TREATMENT NONCOMPLIANCE",
      "count": 32
    },
    {
      "term": "ASPARTATE AMINOTRANSFERASE INCREASED",
      "count": 31
    }
  ]
}