LOW-VOLUME · HOSP-MID
ethosuximide Side Effects
ethosuximide (also sold as Zarontin) is a LOW-VOLUME FAERS extract #444 of 524 by FAERS report count. Still opens on HOSP-MID: 23.5% mention hospitalization (568 reports).
Data updated 2026-05-15
- 2,415
- FAERS reports
Thinner FAERS book - still a temporal association ledger, not proof of cause. Methodology.
ethosuximide: 23.5% mention hospitalization (568 reports). Death stamp DEATH-MARKED; volume band LOW-VOLUME #444 of 524 by FAERS report count.
Thinner FAERS extract for ethosuximide (Zarontin) (2,415 reports #444 of 524 by FAERS report count). 23.5% mention hospitalization (568 reports). Sparse books still carry named reaction rows when present; not medical advice.
Counts from the openFDA FAERS extract (2004–2025). Stamps SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
SEIZURE leads 347 of 2,415 reports
Who reports · age peak 0-17 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 0-17 (969 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death appears on 62 reports (2.6% - MARKED). Reactions below co-occur in those rows only.
| Reaction | Reports |
|---|---|
| SEIZURE | 13 |
| DEATH | 10 |
| SOMNOLENCE | 10 |
| ABNORMAL WEIGHT GAIN | 9 |
| COLON CANCER | 9 |
| DYSKINESIA | 9 |
| DYSPNOEA | 9 |
| FEELING HOT | 9 |
| GYNAECOMASTIA | 9 |
| HYPERHIDROSIS | 9 |
| POLLAKIURIA | 9 |
| RESPIRATORY FAILURE | 9 |
| HYPOTENSION | 8 |
| INSOMNIA | 8 |
| LUNG NEOPLASM MALIGNANT | 8 |
| RASH PRURITIC | 8 |
| VOMITING | 8 |
| INCREASED APPETITE | 7 |
Reactions in Hospitalization Reports
Hospitalization mid-share (568, 23.5%). Co-reported reactions:
| Reaction | Reports |
|---|---|
| SEIZURE | 92 |
| DRUG INTERACTION | 39 |
| SOMNOLENCE | 38 |
| VOMITING | 38 |
| EPILEPSY | 32 |
| GENERALISED TONIC-CLONIC SEIZURE | 31 |
| STATUS EPILEPTICUS | 29 |
| PETIT MAL EPILEPSY | 28 |
| NAUSEA | 25 |
| PYREXIA | 24 |
| DECREASED APPETITE | 23 |
| DEPRESSED LEVEL OF CONSCIOUSNESS | 22 |
| DIZZINESS | 19 |
| FALL | 19 |
| PNEUMONIA | 19 |
| ATAXIA | 18 |
| CONVULSION | 18 |
How to read ethosuximide FAERS figures (SIGNAL · DEATH-MARKED · HOSP-MID)
FAERS holds 2,415 voluntary reports linked to ethosuximide (Zarontin), 2004-2025. Death is listed on 62 (2.6%). Hospitalization appears on 568 (23.5%). Top co-reported indication: Epilepsy.
Sparse extract - named reactions and SEX-BALANCED skew still differ by drug; not a complete safety profile.
Read with ethosuximide
Peers ranked by ABS(total_reports), then an ABS(death_share) pole; guide hop follows DEATH-MARKED · HOSP-MID stamps.
ABS(total_reports) peer at 2,425 FAERS cases (Δ 10 heavier vs ethosuximide); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 2,398 FAERS cases (Δ 17 lighter vs ethosuximide); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 2,439 FAERS cases (Δ 24 heavier vs ethosuximide); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 2,380 FAERS cases (Δ 35 lighter vs ethosuximide); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 59.5 pp vs ethosuximide's DEATH-MARKED): CASELOAD · HOSP-MID.
ethosuximide stamps SIGNAL · SEX-BALANCED; class peers and methodology beat restating the same FAERS caveats on every effects URL.