Reported Reactions

Adverse event reports that FDA received

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Acute hepatic failure adverse event reports that record this term

Kind of term
MedDRA preferred term

What a report is

A report is not proof that the drug was the cause of the event.

FDA says:

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

There is no certainty that the reported event (adverse event or medication error) was actually due to the product. FDA does not require that a causal relationship between a product and event be proven, and reports do not always contain enough detail to properly evaluate an event. The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

Reports on file

From August 2004 to June 2026, FDA received 13,418 adverse event reports that record the MedDRA preferred term Acute hepatic failure. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 983 reports in the 12 months to June 2026 and 997 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

By reports in the 12 months to June 2026, this term was number 619 of 1,436 reaction terms with a page. Of the 1,332,454 drug reports that FDA received in the 12 months to June 2026, 983 (0.1%) record this term. Reports for patients aged 18 to 44 were 27.5% of the reports that record this term and 12.3% of all drug reports.

The number of people who use the product is not in the data. A count is not a rate.

MedDRA

The Medical Dictionary for Regulatory Activities. The person who codes a report selects the preferred term that agrees best with the description of the reporter. FDA does not publish the description.

Data version

openFDA FAERS release of 29 Oct 2026. Reports received through 30 Jun 2026.

Drugs in these reports

The table has the 83 drug pages with 50 or more reports that record this term. The rows are in order of name. A drug page with fewer reports for this term is not in the table. The counts are the counts that the site keeps for each reaction term, and a count can be lower than the count of FDA.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Drugs that the reports with the term Acute hepatic failure name as a suspect product, in order of name
DrugClassReports with this term
Acetaminophen2,681
Acetylcysteine50
Alcohol111
AllopurinolXanthine oxidase inhibitor79
Amiodarone104
Amiodarone hydrochlorideAntiarrhythmic61
AmoxicillinPenicillin-class antibacterial190
AspirinNonsteroidal anti-inflammatory drug70
Atorvastatin137
AzathioprinePurine antimetabolite73
BevacizumabVascular endothelial growth factor inhibitor103
Bleomycin sulfateCytoprotective agent74
BudesonideCorticosteroid65
CarbamazepineMood stabilizer78
CarboplatinPlatinum-based drug95
CiprofloxacinFluoroquinolone antibacterial132
CisplatinPlatinum-based drug70
ClarithromycinMacrolide antimicrobial82
ColchicineAlkaloid61
CyclophosphamideAlkylating drug460
CyclosporineCalcineurin inhibitor immunosuppressant55
CytarabineNucleoside metabolic inhibitor93
DexamethasoneCorticosteroid277
DiazepamBenzodiazepine63
DiclofenacNonsteroidal anti-inflammatory drug76
DocetaxelMicrotubule inhibitor131
DoxorubicinAnthracycline topoisomerase inhibitor220
Doxorubicin hydrochlorideAnthracycline topoisomerase inhibitor213
EliquisFactor Xa inhibitor53
Ethambutol150
EtoposideTopoisomerase inhibitor176
Ferrous sulfate53
FluconazoleAzole antifungal63
IbuprofenNonsteroidal anti-inflammatory drug480
IsoniazidAntimycobacterial260
LamivudineHepatitis B virus nucleoside analog reverse transcriptase inhibitor82
LamotrigineAnti-epileptic agent149
LeflunomideAntirheumatic agent57
Levetiracetam153
LevofloxacinFluoroquinolone antibacterial72
MeropenemPenem antibacterial52
Metamizole55
MetforminBiguanide141
MethotrexateFolate analog metabolic inhibitor314
MethylprednisoloneCorticosteroid159
MetronidazoleNitroimidazole antimicrobial138
Mirtazapine65
Mycophenolate mofetilAntimetabolite immunosuppressant228
NitrofurantoinNitrofuran antibacterial52
NivolumabProgrammed death Receptor-1 blocking antibody54
OlanzapineAtypical antipsychotic87
OmeprazoleProton pump inhibitor68
OxaliplatinPlatinum-based drug71
PaclitaxelMicrotubule inhibitor153
PantoprazoleProton pump inhibitor85
Paracetamol1,070
PhenytoinAnti-epileptic agent50
PrednisoloneCorticosteroid276
Prednisolone sodium phosphateCorticosteroid65
PrednisoneCorticosteroid525
Procarbazine99
PropofolGeneral anesthetic93
PyrazinamideAntimycobacterial221
QuetiapineAtypical antipsychotic57
RibavirinNucleoside analog antiviral61
Rifampicin156
RifampinRifamycin antibacterial115
RitonavirCytochrome P450 3A inhibitor55
RituximabCD20-directed cytolytic antibody481
SimvastatinHMG-CoA reductase inhibitor92
TacrolimusCalcineurin inhibitor immunosuppressant228
Tramadol51
TrastuzumabHER2/neu receptor antagonist140
Trazodone55
TylenolExpectorant214
TYLENOL Extra Strength153
Tylenol PmHistamine-1 receptor antagonist79
Valproic acidAnti-epileptic agent123
VenlafaxineSerotonin and norepinephrine reuptake inhibitor70
Vicodin59
Vincristine253
Vincristine sulfateVinca alkaloid160
XareltoFactor Xa inhibitor67

The page of each drug has the count of each reaction term in its reaction lookup.

Drug classes in these reports

The table has the 41 pharmacologic classes with 100 or more reports that record this term. The rows are in order of name.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Pharmacologic classes of the drugs that the reports with the term Acute hepatic failure name, in order of name
ClassReports with this term
Alkylating drug624
Anthracycline topoisomerase inhibitor454
Anti-epileptic agent438
Antimetabolite immunosuppressant266
Antimycobacterial502
Atypical antipsychotic284
Azole antifungal116
Benzodiazepine272
Biguanide191
Calcineurin inhibitor immunosuppressant295
CD20-directed cytolytic antibody512
Cephalosporin antibacterial149
Corticosteroid1,429
Cytoprotective agent121
Expectorant217
Factor Xa inhibitor149
Fluoroquinolone antibacterial232
Folate analog metabolic inhibitor357
General anesthetic145
Hepatitis B virus nucleoside analog reverse transcriptase inhibitor123
HER2/neu receptor antagonist161
Histamine-1 receptor antagonist150
HMG-CoA reductase inhibitor208
Human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor100
Kinase inhibitor315
Macrolide antimicrobial123
Microtubule inhibitor286
Nitroimidazole antimicrobial142
Nonsteroidal anti-inflammatory drug776
Nucleoside metabolic inhibitor292
Opioid agonist273
Penicillin-class antibacterial259
Platinum-based drug236
Programmed death Receptor-1 blocking antibody192
Proton pump inhibitor266
Rifamycin antibacterial127
Serotonin and norepinephrine reuptake inhibitor131
Serotonin reuptake inhibitor156
Topoisomerase inhibitor179
Vascular endothelial growth factor inhibitor137
Vinca alkaloid162

A class with many reports in all has many reports for almost every term.

Reports by month

Reports that record Acute hepatic failure, by month, five years to June 2026
025050020222023202420252026

FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Patients in these reports

Age of the patient in the reports that record Acute hepatic failure
AgeReportsShareShare as a bar
Under 22141.6%
2 to 114413.3%
12 to 175043.8%
18 to 443,68727.5%
45 to 642,81120.9%
65 to 741,2899.6%
75 and over1,0037.5%
Age not given3,46925.9%
Sex of the patient in the reports that record Acute hepatic failure
SexReportsShareShare as a bar
Female6,27846.8%
Male4,70635.1%
Unknown or not given2,43418.1%

Age and sex are as the report gives them. 38% of these reports give the United States as the country.

Terms near this one

Official pages

The site checked these addresses on . The links open in a new tab.

Cite this page

Reported Reactions. Acute hepatic failure: adverse event reports that record this term. https://reportedreactions.com/reaction/acute-hepatic-failure/ Source: U.S. Food and Drug Administration, openFDA Drug Adverse Event (FAERS) files, release of . Reports received through .

Where the data come from

The counts come from the openFDA Drug Adverse Event (FAERS) bulk files, release of 29 Oct 2026. The files have the reports that FDA received through 30 Jun 2026. A drug name is the name on the report. The site matches it to a brand name or a generic name of the National Drug Code Directory of 2 Nov 2026. A class is the pharmacologic class (EPC) of the FDA label.

The count has the reports with each spelling of one MedDRA preferred term. The site does not publish a report narrative, a lot number, a detail of a patient or the identity of a reporter. The record of FDA is the authority. See how the site counts reports, the data sources and the corrections page.

Questions

What does Acute hepatic failure mean in an adverse event report?

It is a MedDRA preferred term. FDA codes the description of a reporter with the MedDRA dictionary. The openFDA files do not have the description itself, and this site does not show it.

Does a drug in the table mean that the drug was responsible for this reaction?

No. FDA says:

No individual drug is connected to any individual reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

When a report lists multiple drugs and multiple reactions, there is no way to conclude from the data therein that a given drug is responsible for a given reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

What does this page tell a person who has this symptom?

This page gives counts of reports. It cannot assess a person. A pharmacist or a clinician can assess a person.

If this is a medical emergency, please call 911.

Source: FDA, MedWatch Online Voluntary Reporting Form. The site read the page on .