MID-VOLUME · HOSP-HEAVY
thiamine Side Effects
thiamine (also sold as Vitamin B1) sits MID-VOLUME #298 of 524 by FAERS report count. Lead signal: HOSP-HEAVY - 54.6% mention hospitalization (6,403 reports). Demographics and serious-outcome tables follow.
Data updated 2026-05-15
- 11,724
- FAERS reports
FDA Adverse Event Reporting System extract for thiamine. Stamp set WATCHLIST · DEATH-HEAVY · HOSP-HEAVY. How figures are compiled.
thiamine: 54.6% mention hospitalization (6,403 reports). Death stamp DEATH-HEAVY; volume band MID-VOLUME #298 of 524 by FAERS report count.
Mid-book FAERS page for thiamine (Vitamin B1) (11,724 reports). Signature HOSP-HEAVY. Dominant age band on file: 45-64. Educational reference only.
Counts from the openFDA FAERS extract (2004–2025). Stamps WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
NAUSEA leads 765 of 11,724 reports
Who reports · age peak 45-64 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 45-64 (3,928 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (1,816 reports, 15.5%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| DEATH | 380 |
| DYSPNOEA | 273 |
| CONFUSIONAL STATE | 228 |
| NAUSEA | 224 |
| PAIN | 201 |
| RHEUMATOID ARTHRITIS | 199 |
| DRUG HYPERSENSITIVITY | 196 |
| PEMPHIGUS | 196 |
| RASH | 194 |
| SYNOVITIS | 194 |
| RHEUMATIC FEVER | 193 |
| SLEEP DISORDER | 193 |
| SYSTEMIC LUPUS ERYTHEMATOSUS | 193 |
| INFUSION RELATED REACTION | 186 |
| WOUND | 185 |
| CONDITION AGGRAVATED | 183 |
| SWELLING | 181 |
Reactions in Hospitalization Reports
Hospitalization is HEAVY (6,403, 54.6% of the book). Top reactions in those rows:
| Reaction | Reports |
|---|---|
| NAUSEA | 590 |
| DYSPNOEA | 549 |
| CONFUSIONAL STATE | 506 |
| DIARRHOEA | 474 |
| FATIGUE | 407 |
| PAIN | 407 |
| VOMITING | 400 |
| MALAISE | 399 |
| FALL | 382 |
| ACUTE KIDNEY INJURY | 380 |
| PNEUMONIA | 372 |
| DIZZINESS | 334 |
| ASTHENIA | 328 |
| CONDITION AGGRAVATED | 321 |
| PYREXIA | 317 |
| DRUG HYPERSENSITIVITY | 304 |
| RASH | 298 |
| HEADACHE | 283 |
How to read thiamine FAERS figures (WATCHLIST · DEATH-HEAVY · HOSP-HEAVY)
FAERS holds 11,724 voluntary reports linked to thiamine (Vitamin B1), 2004-2025. Death is listed on 1,816 (15.5%). Hospitalization appears on 6,403 (54.6%). Top co-reported indication: Product Used For Unknown Indication.
Mid-volume extract - treat DEATH-HEAVY · HOSP-HEAVY as signal-detection rates next to 54.6% mention hospitalization (6,403 reports).
Read with thiamine
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 11,723 FAERS cases (Δ 1 lighter vs thiamine); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 11,690 FAERS cases (Δ 34 lighter vs thiamine); DEATH-MARKED · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 11,539 FAERS cases (Δ 185 lighter vs thiamine); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 11,382 FAERS cases (Δ 342 lighter vs thiamine); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 46.6 pp vs thiamine's DEATH-HEAVY): CASELOAD · HOSP-MID.
thiamine stamps DEATH-HEAVY · HOSP-HEAVY; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload WATCHLIST and the label guide.