Reported Reactions

Adverse event reports that FDA received

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Ulcer 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 January 2004 to June 2026, FDA received 15,685 adverse event reports that record the MedDRA preferred term Ulcer. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 785 reports in the 12 months to June 2026 and 800 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 737 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, 785 (0.1%) record this term. Reports for female patients were 58.4% of the reports that record this term and 52.7% 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 71 drug pages with 100 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 Ulcer name as a suspect product, in order of name
DrugClassReports with this term
Acetaminophen191
ActemraInterleukin-6 receptor antagonist585
AdalimumabTumor necrosis factor blocker315
Alendronate sodiumBisphosphonate287
Alendronic Acid194
AleveNonsteroidal anti-inflammatory drug165
AllopurinolXanthine oxidase inhibitor124
ApremilastPhosphodiesterase 4 inhibitor133
AranespErythropoiesis-stimulating agent108
AravaAntirheumatic agent288
AspirinNonsteroidal anti-inflammatory drug307
AvastinVascular endothelial growth factor inhibitor104
AvonexInterferon beta116
AzathioprinePurine antimetabolite275
BenadrylHistamine-1 receptor antagonist104
BudesonideCorticosteroid178
CelebrexNonsteroidal anti-inflammatory drug405
Certolizumab pegolTumor necrosis factor blocker110
Ciclosporin103
CimziaTumor necrosis factor blocker347
Codeine390
CosentyxInterleukin-17A antagonist301
CyclosporineCalcineurin inhibitor immunosuppressant229
DexilantProton pump inhibitor103
Diphenhydramine hydrochlorideHistamine-1 receptor antagonist120
DupixentInterleukin-4 receptor alpha antagonist164
EnbrelTumor necrosis factor blocker995
Erelzi162
FosamaxBisphosphonate441
GabapentinAnti-epileptic agent122
GoldStandardized chemical allergen106
Humira1,429
HydroxychloroquineAntimalarial313
Hydroxychloroquine sulfateAntimalarial326
IbuprofenNonsteroidal anti-inflammatory drug409
InfliximabTumor necrosis factor blocker342
LansoprazoleProton pump inhibitor144
LeflunomideAntirheumatic agent507
Lyrica205
Magnesium oxideCalculi dissolution agent155
MethotrexateFolate analog metabolic inhibitor926
Methotrexate sodiumFolate analog metabolic inhibitor207
MetronidazoleNitroimidazole antimicrobial122
MotrinNonsteroidal anti-inflammatory drug134
Mycophenolate mofetilAntimetabolite immunosuppressant172
Myochrysine303
NaproxenNonsteroidal anti-inflammatory drug260
NexiumProton pump inhibitor612
OmeprazoleProton pump inhibitor129
OndansetronSerotonin-3 receptor antagonist119
OrenciaSelective T cell costimulation modulator554
OtezlaPhosphodiesterase 4 inhibitor208
PantoprazoleProton pump inhibitor134
Pantoprazole sodiumProton pump inhibitor118
PlaquenilAntimalarial108
PrednisoloneCorticosteroid140
PrednisoneCorticosteroid453
RemicadeTumor necrosis factor blocker638
RevlimidThalidomide analog145
RinvoqJanus kinase inhibitor176
RituxanCD20-directed cytolytic antibody268
RituximabCD20-directed cytolytic antibody749
SimponiTumor necrosis factor blocker301
SkyriziInterleukin-23 antagonist153
StelaraInterleukin-12 antagonist228
Sulfamethoxazole110
SulfasalazineAminosalicylate518
TocilizumabInterleukin-6 receptor antagonist344
Vioxx767
XareltoFactor Xa inhibitor130
XeljanzJanus kinase inhibitor391

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 25 pharmacologic classes with 250 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 Ulcer name, in order of name
ClassReports with this term
Aminosalicylate588
Anti-coagulant318
Antimalarial766
Antirheumatic agent795
Bisphosphonate820
Calcineurin inhibitor immunosuppressant382
CD20-directed cytolytic antibody1,103
Corticosteroid1,584
Factor Xa inhibitor276
Folate analog metabolic inhibitor1,145
Histamine-1 receptor antagonist472
HMG-CoA reductase inhibitor267
Interleukin-12 antagonist312
Interleukin-17A antagonist377
Interleukin-6 receptor antagonist970
Janus kinase inhibitor740
Kinase inhibitor824
Nonsteroidal anti-inflammatory drug2,209
Opioid agonist564
Osmotic laxative360
Phosphodiesterase 4 inhibitor343
Proton pump inhibitor1,728
Purine antimetabolite369
Selective T cell costimulation modulator623
Tumor necrosis factor blocker3,325

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

Reports by month

Reports that record Ulcer, by month, five years to June 2026
010020020222023202420252026

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 Ulcer
AgeReportsShareShare as a bar
Under 2230.1%
2 to 11790.5%
12 to 17860.5%
18 to 441,65210.5%
45 to 643,94125.1%
65 to 741,99112.7%
75 and over1,68910.8%
Age not given6,22439.7%
Sex of the patient in the reports that record Ulcer
SexReportsShareShare as a bar
Female9,15358.4%
Male5,07532.4%
Unknown or not given1,4579.3%

Age and sex are as the report gives them. 60.9% 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. Ulcer: adverse event reports that record this term. https://reportedreactions.com/reaction/ulcer/ 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 Ulcer 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 .