LOW-VOLUME · HOSP-HEAVY
felbamate Side Effects
felbamate (also sold as Felbatol) is a LOW-VOLUME FAERS extract #467 of 524 by FAERS report count. Still opens on HOSP-HEAVY: 30.9% mention hospitalization (529 reports).
Data updated 2026-05-15
- 1,714
- FAERS reports
Thinner FAERS book - still a temporal association ledger, not proof of cause. Methodology.
felbamate: 30.9% mention hospitalization (529 reports). Death stamp DEATH-HEAVY; volume band LOW-VOLUME #467 of 524 by FAERS report count.
Thinner FAERS extract for felbamate (Felbatol) (1,714 reports #467 of 524 by FAERS report count). 30.9% mention hospitalization (529 reports). Sparse books still carry named reaction rows when present; not medical advice.
Counts from the openFDA FAERS extract (2004–2025). Stamps SIGNAL · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
SEIZURE leads 345 of 1,714 reports
Who reports · age peak 0-17 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 0-17 (405 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (86 reports, 5.0%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| CARDIAC ARREST | 22 |
| DEATH | 20 |
| TACHYCARDIA | 18 |
| TOXICITY TO VARIOUS AGENTS | 18 |
| CIRCULATORY COLLAPSE | 14 |
| ELECTROCARDIOGRAM QRS COMPLEX PROLONGED | 14 |
| ATRIOVENTRICULAR BLOCK FIRST DEGREE | 13 |
| CARDIOTOXICITY | 13 |
| ELECTROCARDIOGRAM ST SEGMENT ELEVATION | 13 |
| ELECTROCARDIOGRAM REPOLARISATION ABNORMALITY | 12 |
| SINUS BRADYCARDIA | 12 |
| SYSTOLIC DYSFUNCTION | 12 |
| VENTRICULAR HYPOKINESIA | 12 |
| UNMASKING OF PREVIOUSLY UNIDENTIFIED DISEASE | 11 |
| VENTRICULAR EXTRASYSTOLES | 11 |
| SEIZURE | 7 |
| SUDDEN UNEXPLAINED DEATH IN EPILEPSY | 7 |
| HYPOTENSION | 6 |
| METABOLIC ACIDOSIS | 6 |
| RESPIRATORY FAILURE | 6 |
Reactions in Hospitalization Reports
Hospitalization is HEAVY (529, 30.9% of the book). Top reactions in those rows:
| Reaction | Reports |
|---|---|
| SEIZURE | 109 |
| CONVULSION | 41 |
| TOXICITY TO VARIOUS AGENTS | 40 |
| PNEUMONIA | 39 |
| VOMITING | 36 |
| TACHYCARDIA | 35 |
| SOMNOLENCE | 33 |
| CONDITION AGGRAVATED | 30 |
| DRUG INTERACTION | 29 |
| HOSPITALISATION | 29 |
| FATIGUE | 27 |
| FALL | 25 |
| STATUS EPILEPTICUS | 22 |
| CARDIAC ARREST | 20 |
| DRUG REACTION WITH EOSINOPHILIA AND SYSTEMIC SYMPTOMS | 20 |
| PYREXIA | 19 |
| ASTHENIA | 18 |
| EPILEPSY | 18 |
How to read felbamate FAERS figures (SIGNAL · DEATH-HEAVY · HOSP-HEAVY)
FAERS holds 1,714 voluntary reports linked to felbamate (Felbatol), 2004-2025. Death is listed on 86 (5.0%). Hospitalization appears on 529 (30.9%). Top co-reported indication: Product Used For Unknown Indication.
Sparse extract - named reactions and SEX-BALANCED skew still differ by drug; not a complete safety profile.
Read with felbamate
Peers ranked by ABS(total_reports), then an ABS(death_share) pole; guide hop follows DEATH-HEAVY · HOSP-HEAVY stamps.
ABS(total_reports) peer at 1,707 FAERS cases (Δ 7 lighter vs felbamate); DEATH-MARKED · HOSP-MID · SEX-BALANCED vs this page's SIGNAL · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 1,797 FAERS cases (Δ 83 heavier vs felbamate); DEATH-MARKED · HOSP-LIGHT · SEX-BALANCED vs this page's SIGNAL · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 1,829 FAERS cases (Δ 115 heavier vs felbamate); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's SIGNAL · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 1,831 FAERS cases (Δ 117 heavier vs felbamate); DEATH-MARKED · HOSP-MID · FEMALE-LED vs this page's SIGNAL · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 57.1 pp vs felbamate's DEATH-HEAVY): CASELOAD · HOSP-MID.
felbamate stamps DEATH-HEAVY · HOSP-HEAVY; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload SIGNAL and the label guide.