MID-VOLUME · HOSP-HEAVY
oseltamivir Side Effects
oseltamivir (also sold as Tamiflu) sits MID-VOLUME #348 of 524 by FAERS report count. Lead signal: HOSP-HEAVY - 33.4% mention hospitalization (2,529 reports). Demographics and serious-outcome tables follow.
Data updated 2026-05-15
- 7,575
- FAERS reports
FDA Adverse Event Reporting System extract for oseltamivir. Stamp set WATCHLIST · DEATH-HEAVY · HOSP-HEAVY. How figures are compiled.
oseltamivir: 33.4% mention hospitalization (2,529 reports). Death stamp DEATH-HEAVY; volume band MID-VOLUME #348 of 524 by FAERS report count.
Mid-book FAERS page for oseltamivir (Tamiflu) (7,575 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.
VOMITING leads 444 of 7,575 reports
Who reports · age peak 18-44 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 18-44 (1,592 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (1,149 reports, 15.2%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| MULTIPLE ORGAN DYSFUNCTION SYNDROME | 234 |
| SEPSIS | 219 |
| DEATH | 211 |
| HYPONATRAEMIA | 211 |
| CONDITION AGGRAVATED | 203 |
| GENERAL PHYSICAL HEALTH DETERIORATION | 201 |
| NAUSEA | 193 |
| VOMITING | 193 |
| ASCITES | 190 |
| STRESS | 190 |
| ABDOMINAL DISTENSION | 188 |
| APPENDICITIS | 186 |
| APPENDICOLITH | 184 |
| CARDIOGENIC SHOCK | 184 |
| ABDOMINAL PAIN | 181 |
| VENTRICULAR FIBRILLATION | 178 |
| CONSTIPATION | 174 |
| SOMNOLENCE | 152 |
Reactions in Hospitalization Reports
Hospitalization is HEAVY (2,529, 33.4% of the book). Top reactions in those rows:
| Reaction | Reports |
|---|---|
| PNEUMONIA | 268 |
| CONDITION AGGRAVATED | 232 |
| NAUSEA | 206 |
| INFLUENZA | 196 |
| VOMITING | 194 |
| DYSPNOEA | 190 |
| ABDOMINAL PAIN | 169 |
| SEPSIS | 166 |
| PYREXIA | 159 |
| ANAEMIA | 158 |
| HYPONATRAEMIA | 148 |
| MULTIPLE ORGAN DYSFUNCTION SYNDROME | 148 |
| PULMONARY EMBOLISM | 142 |
| GENERAL PHYSICAL HEALTH DETERIORATION | 138 |
| SOMNOLENCE | 131 |
| ABDOMINAL DISTENSION | 128 |
How to read oseltamivir FAERS figures (WATCHLIST · DEATH-HEAVY · HOSP-HEAVY)
FAERS holds 7,575 voluntary reports linked to oseltamivir (Tamiflu), 2004-2025. Death is listed on 1,149 (15.2%). Hospitalization appears on 2,529 (33.4%). Top co-reported indication: Product Used For Unknown Indication.
Mid-volume extract - treat DEATH-HEAVY · HOSP-HEAVY as signal-detection rates next to 33.4% mention hospitalization (2,529 reports).
Read with oseltamivir
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 7,629 FAERS cases (Δ 54 heavier vs oseltamivir); DEATH-HEAVY · HOSP-MID · FEMALE-LED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 7,480 FAERS cases (Δ 95 lighter vs oseltamivir); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 7,436 FAERS cases (Δ 139 lighter vs oseltamivir); DEATH-HEAVY · HOSP-HEAVY · MALE-LED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 7,422 FAERS cases (Δ 153 lighter vs oseltamivir); 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 46.9 pp vs oseltamivir's DEATH-HEAVY): CASELOAD · HOSP-MID.
oseltamivir stamps DEATH-HEAVY · HOSP-HEAVY; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload WATCHLIST and the label guide.