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

VOMITING
444
NAUSEA
443
HEADACHE
381
PNEUMONIA
368
CONDITION AGGRAVATED
332
INFLUENZA
330
DYSPNOEA
283
ABDOMINAL PAIN
280
SEPSIS
260
DIARRHOEA
259
DRUG INEFFECTIVE FOR UNAPPROVED INDICATION
254
PYREXIA
250
MULTIPLE ORGAN DYSFUNCTION SYNDROME
246
HYPERSENSITIVITY
243
GENERAL PHYSICAL HEALTH DETERIORATION
226

Who reports · age peak 18-44 (SEX-BALANCED)

Sex coding · SEX-BALANCED

Female 3,332 (51%)
Male 3,149 (48%)
Unknown 18

Age peak 18-44 (1,592 reports)

0-17 811 (16%)
18-44 1,592 (31%)
45-64 1,362 (27%)
65-74 631 (12%)
75+ 708 (14%)

FAERS filings rising toward 2025

2004 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.