Reported Reactions

Adverse event reports that FDA received

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Intestinal obstruction adverse event reports that record this term

Kind of term
MedDRA preferred term
Plain meaning
a blocked bowel

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 36,901 adverse event reports that record the MedDRA preferred term Intestinal obstruction. In plain words, the term means: a blocked bowel. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 3,057 reports in the 12 months to June 2026 and 2,748 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 248 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, 3,057 (0.2%) record this term. Reports for patients aged 45 to 64 were 24.3% of the reports that record this term and 20% 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.

Plain meaning

A blocked bowel. The words are from the fixed dictionary of this site. They add nothing to a report.

Data version

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

Drugs in these reports

The table has the 80 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 Intestinal obstruction name as a suspect product, in order of name
DrugClassReports with this term
AccutaneRetinoid860
AdalimumabTumor necrosis factor blocker131
AfinitorKinase inhibitor159
AmbrisentanEndothelin receptor antagonist137
AvastinVascular endothelial growth factor inhibitor577
AvonexInterferon beta211
BevacizumabVascular endothelial growth factor inhibitor426
CapecitabineNucleoside metabolic inhibitor411
Carbidopa levodopaAromatic amino acid150
CarboplatinPlatinum-based drug287
CetuximabEpidermal growth factor receptor antagonist102
CimziaTumor necrosis factor blocker200
CisplatinPlatinum-based drug196
ClozapineAtypical antipsychotic370
ClozarilAtypical antipsychotic374
Creon172
CyclophosphamideAlkylating drug163
DexamethasoneCorticosteroid160
Dianeal113
Dianeal Low Calcium Peritoneal Dialysis Solution with Dextrose144
DilaudidOpioid agonist102
DoxorubicinAnthracycline topoisomerase inhibitor103
Duodopa140
EnbrelTumor necrosis factor blocker307
EntyvioIntegrin receptor antagonist201
EtoposideTopoisomerase inhibitor102
FluorouracilNucleoside metabolic inhibitor391
ForteoParathyroid hormone analog256
GattexGLP-2 analog137
Humira6,589
IbranceKinase inhibitor112
ImbruvicaKinase inhibitor125
InflectraTumor necrosis factor blocker411
InfliximabTumor necrosis factor blocker456
Irinotecan217
KeytrudaProgrammed death Receptor-1 blocking antibody137
Leucovorin115
Leucovorin calciumFolate analog100
LonsurfNucleoside analog antiviral136
LynparzaPoly(ADP-Ribose) polymerase inhibitor100
Lyrica148
MethotrexateFolate analog metabolic inhibitor276
MorphineOpioid agonist131
Morphine sulfateOpioid agonist125
MounjaroGLP-1 receptor agonist478
Mycophenolate mofetilAntimetabolite immunosuppressant109
NiraparibPoly(ADP-Ribose) polymerase inhibitor156
NivolumabProgrammed death Receptor-1 blocking antibody141
OlanzapineAtypical antipsychotic142
OpsumitEndothelin receptor antagonist120
OxaliplatinPlatinum-based drug373
Oxycodone hydrochlorideOpioid agonist140
OxyContinOpioid agonist199
OzempicGLP-1 receptor agonist1,085
PaclitaxelMicrotubule inhibitor226
PantoprazoleProton pump inhibitor135
PradaxaDirect thrombin inhibitor109
PrednisoloneCorticosteroid115
PrednisoneCorticosteroid342
QuetiapineAtypical antipsychotic115
RebifInterferon beta101
RemicadeTumor necrosis factor blocker844
RevlimidThalidomide analog532
RinvoqJanus kinase inhibitor348
RisperidoneAtypical antipsychotic121
RituximabCD20-directed cytolytic antibody206
SandostatinSomatostatin analog240
Sandostatin LAR Depot347
SkyriziInterleukin-23 antagonist1,153
StelaraInterleukin-12 antagonist452
TacrolimusCalcineurin inhibitor immunosuppressant152
Tecfidera119
TeduglutideGLP-2 analog276
TrulicityGLP-1 receptor agonist370
TysabriIntegrin receptor antagonist182
VedolizumabIntegrin receptor antagonist1,155
WegovyGLP-1 receptor agonist158
XeljanzJanus kinase inhibitor116
XelodaNucleoside metabolic inhibitor213
ZejulaPoly(ADP-Ribose) polymerase inhibitor200

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 58 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 Intestinal obstruction name, in order of name
ClassReports with this term
Alkylating drug293
Aminosalicylate138
Angiotensin 2 receptor blocker191
Anthracycline topoisomerase inhibitor223
Anti-epileptic agent299
Anti-IgE100
Anticholinergic176
Antimalarial106
Antimetabolite immunosuppressant170
Aromatic amino acid218
Atypical antipsychotic1,691
Benzodiazepine287
beta-Adrenergic blocker136
Bisphosphonate146
Calcineurin inhibitor immunosuppressant272
CD20-directed cytolytic antibody349
Corticosteroid884
Dipeptidyl peptidase 4 inhibitor117
Direct thrombin inhibitor109
Endothelin receptor antagonist433
Epidermal growth factor receptor antagonist293
Factor Xa inhibitor174
Folate analog142
Folate analog metabolic inhibitor387
GLP-1 receptor agonist2,451
GLP-2 analog413
HMG-CoA reductase inhibitor112
Human immunoglobulin G101
Integrin receptor antagonist1,542
Interferon beta325
Interleukin-12 antagonist506
Interleukin-17A antagonist113
Interleukin-23 antagonist1,175
Interleukin-4 receptor alpha antagonist112
Janus kinase inhibitor571
Kinase inhibitor1,505
Loop diuretic113
Microtubule inhibitor310
Nonsteroidal anti-inflammatory drug235
Nucleoside analog antiviral172
Nucleoside metabolic inhibitor1,257
Opioid agonist1,242
Osmotic laxative210
Parathyroid hormone analog281
Platinum-based drug856
Poly(ADP-Ribose) polymerase inhibitor584
Programmed death Receptor-1 blocking antibody529
Prostacycline vasodilator159
Proteasome inhibitor132
Proton pump inhibitor518
Retinoid889
Selective T cell costimulation modulator116
Serotonin reuptake inhibitor167
Somatostatin analog358
Thalidomide analog711
Topoisomerase inhibitor208
Tumor necrosis factor blocker2,564
Vascular endothelial growth factor inhibitor1,080

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

Reports by month

Reports that record Intestinal obstruction, 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 Intestinal obstruction
AgeReportsShareShare as a bar
Under 21030.3%
2 to 112130.6%
12 to 173661%
18 to 444,71312.8%
45 to 648,97224.3%
65 to 744,93913.4%
75 and over3,78410.3%
Age not given13,81137.4%
Sex of the patient in the reports that record Intestinal obstruction
SexReportsShareShare as a bar
Female19,33952.4%
Male14,34838.9%
Unknown or not given3,2148.7%

Age and sex are as the report gives them. 52.1% of these reports give the United States as the country.

Terms near this one

Official pages

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Reported Reactions. Intestinal obstruction: adverse event reports that record this term. https://reportedreactions.com/reaction/intestinal-obstruction/ 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 Intestinal obstruction mean in an adverse event report?

In plain words: a blocked bowel. 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 .