MID-VOLUME · HOSP-HEAVY
rifampin Side Effects
rifampin (also sold as Rifadin) sits MID-VOLUME #282 of 524 by FAERS report count. Lead signal: HOSP-HEAVY - 40.2% mention hospitalization (5,402 reports). Demographics and serious-outcome tables follow.
Data updated 2026-05-15
- 13,451
- FAERS reports
FDA Adverse Event Reporting System extract for rifampin. Stamp set WATCHLIST · DEATH-HEAVY · HOSP-HEAVY. How figures are compiled.
rifampin: 40.2% mention hospitalization (5,402 reports). Death stamp DEATH-HEAVY; volume band MID-VOLUME #282 of 524 by FAERS report count.
Mid-book FAERS page for rifampin (Rifadin) (13,451 reports). Signature HOSP-HEAVY. Dominant age band on file: 18-44. Educational reference only.
Counts from the openFDA FAERS extract (2004–2025). Stamps WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
DRUG INTERACTION leads 970 of 13,451 reports
Who reports · age peak 18-44 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 18-44 (2,935 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (1,383 reports, 10.3%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| DEATH | 185 |
| MULTIPLE ORGAN DYSFUNCTION SYNDROME | 76 |
| RESPIRATORY FAILURE | 69 |
| ACUTE KIDNEY INJURY | 63 |
| SEPSIS | 63 |
| DRUG INTERACTION | 60 |
| CONDITION AGGRAVATED | 57 |
| DRUG INEFFECTIVE FOR UNAPPROVED INDICATION | 57 |
| DYSPNOEA | 55 |
| THROMBOCYTOPENIA | 54 |
| GENERAL PHYSICAL HEALTH DETERIORATION | 53 |
| NAUSEA | 51 |
| DRUG-INDUCED LIVER INJURY | 50 |
| PNEUMONIA | 50 |
| TREATMENT FAILURE | 50 |
| DRUG REACTION WITH EOSINOPHILIA AND SYSTEMIC SYMPTOMS | 49 |
| SEPTIC SHOCK | 49 |
| CARDIAC ARREST | 46 |
Reactions in Hospitalization Reports
Hospitalization is HEAVY (5,402, 40.2% of the book). Top reactions in those rows:
| Reaction | Reports |
|---|---|
| DRUG INTERACTION | 482 |
| DRUG REACTION WITH EOSINOPHILIA AND SYSTEMIC SYMPTOMS | 404 |
| PYREXIA | 336 |
| NAUSEA | 282 |
| ACUTE KIDNEY INJURY | 266 |
| VOMITING | 239 |
| CONDITION AGGRAVATED | 228 |
| DIARRHOEA | 185 |
| DYSPNOEA | 178 |
| RASH | 178 |
| PARADOXICAL DRUG REACTION | 162 |
| THROMBOCYTOPENIA | 154 |
| DRUG-INDUCED LIVER INJURY | 143 |
| PNEUMONIA | 135 |
| COUGH | 131 |
| EOSINOPHILIA | 131 |
| ASTHENIA | 129 |
| FATIGUE | 121 |
How to read rifampin FAERS figures (WATCHLIST · DEATH-HEAVY · HOSP-HEAVY)
FAERS holds 13,451 voluntary reports linked to rifampin (Rifadin), 2004-2025. Death is listed on 1,383 (10.3%). Hospitalization appears on 5,402 (40.2%). Top co-reported indication: Product Used For Unknown Indication.
Mid-volume extract - treat DEATH-HEAVY · HOSP-HEAVY as signal-detection rates next to 40.2% mention hospitalization (5,402 reports).
Read with rifampin
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 13,500 FAERS cases (Δ 49 heavier vs rifampin); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 13,400 FAERS cases (Δ 51 lighter vs rifampin); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 13,367 FAERS cases (Δ 84 lighter vs rifampin); DEATH-HEAVY · HOSP-HEAVY · FEMALE-LED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 13,667 FAERS cases (Δ 216 heavier vs rifampin); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 51.8 pp vs rifampin's DEATH-HEAVY): CASELOAD · HOSP-MID.
rifampin stamps DEATH-HEAVY · HOSP-HEAVY; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload WATCHLIST and the label guide.