Reported Reactions

Adverse event reports that FDA received

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Pleural effusion adverse event reports that record this term

Kind of term
MedDRA preferred term
Plain meaning
fluid around the lung

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 59,892 adverse event reports that record the MedDRA preferred term Pleural effusion. In plain words, the term means: fluid around the lung. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 2,848 reports in the 12 months to June 2026 and 3,046 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 264 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, 2,848 (0.2%) record this term. Reports for male patients were 43.3% of the reports that record this term and 34.6% 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

Fluid around the lung. 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 86 drug pages with 250 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 Pleural effusion name as a suspect product, in order of name
DrugClassReports with this term
Acetaminophen379
ActemraInterleukin-6 receptor antagonist318
AdalimumabTumor necrosis factor blocker279
AfinitorKinase inhibitor621
AmbrisentanEndothelin receptor antagonist366
AmlodipineCalcium channel blocker362
Aredia257
AspirinNonsteroidal anti-inflammatory drug312
Avandia566
AvastinVascular endothelial growth factor inhibitor534
BevacizumabVascular endothelial growth factor inhibitor607
CabometyxKinase inhibitor283
CapecitabineNucleoside metabolic inhibitor481
CarboplatinPlatinum-based drug1,158
CisplatinPlatinum-based drug613
CyclophosphamideAlkylating drug1,495
CyclosporineCalcineurin inhibitor immunosuppressant329
CytarabineNucleoside metabolic inhibitor713
DasatinibKinase inhibitor1,154
DexamethasoneCorticosteroid1,068
Dianeal Low Calcium Peritoneal Dialysis Solution with Dextrose321
DigoxinCardiac glycoside341
DocetaxelMicrotubule inhibitor746
DoxorubicinAnthracycline topoisomerase inhibitor505
Doxorubicin hydrochlorideAnthracycline topoisomerase inhibitor474
EliquisFactor Xa inhibitor313
EnbrelTumor necrosis factor blocker744
EntrestoAngiotensin 2 receptor blocker458
ErlotinibKinase inhibitor317
EtoposideTopoisomerase inhibitor563
EverolimusKinase inhibitor315
FluorouracilNucleoside metabolic inhibitor499
FulvestrantEstrogen receptor antagonist357
FurosemideLoop diuretic362
GemcitabineNucleoside metabolic inhibitor500
Gemzar268
GleevecKinase inhibitor446
Glivec259
HerceptinHER2/neu receptor antagonist407
Humira1,323
HydroxychloroquineAntimalarial263
IbranceKinase inhibitor597
ImatinibKinase inhibitor458
ImbruvicaKinase inhibitor1,019
InfliximabTumor necrosis factor blocker325
KeytrudaProgrammed death Receptor-1 blocking antibody566
KisqaliKinase inhibitor505
LenalidomideThalidomide analog280
LetrozoleAromatase inhibitor615
MethotrexateFolate analog metabolic inhibitor1,436
MethylprednisoloneCorticosteroid410
Mycophenolate mofetilAntimetabolite immunosuppressant576
NivolumabProgrammed death Receptor-1 blocking antibody661
OpdivoProgrammed death Receptor-1 blocking antibody421
OpsumitEndothelin receptor antagonist582
OrenciaSelective T cell costimulation modulator278
OxaliplatinPlatinum-based drug468
PaclitaxelMicrotubule inhibitor722
PembrolizumabProgrammed death Receptor-1 blocking antibody335
PemetrexedFolate analog metabolic inhibitor297
PradaxaDirect thrombin inhibitor284
PrednisoloneCorticosteroid742
PrednisoneCorticosteroid1,493
RemicadeTumor necrosis factor blocker628
RemodulinProstacycline vasodilator331
RevlimidThalidomide analog807
RituximabCD20-directed cytolytic antibody1,186
SprycelKinase inhibitor2,059
SutentKinase inhibitor493
TacrolimusCalcineurin inhibitor immunosuppressant862
TagrissoKinase inhibitor369
TasignaKinase inhibitor502
Taxol285
Taxotere312
TocilizumabInterleukin-6 receptor antagonist251
TracleerEndothelin receptor antagonist370
TrastuzumabHER2/neu receptor antagonist426
UptraviProstacyclin receptor agonist260
VelcadeProteasome inhibitor382
Vincristine548
Vincristine sulfateVinca alkaloid389
Vioxx270
XareltoFactor Xa inhibitor320
XeljanzJanus kinase inhibitor307
XelodaNucleoside metabolic inhibitor289
Zometa540

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 37 pharmacologic classes with 500 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 Pleural effusion name, in order of name
ClassReports with this term
Alkylating drug2,339
Angiotensin 2 receptor blocker1,013
Anthracycline topoisomerase inhibitor1,275
Anti-epileptic agent617
Antimetabolite immunosuppressant825
Aromatase inhibitor1,169
Atypical antipsychotic999
beta-Adrenergic blocker587
Bisphosphonate748
Calcineurin inhibitor immunosuppressant1,524
CD20-directed cytolytic antibody1,547
Corticosteroid5,220
Endothelin receptor antagonist1,601
Estrogen receptor antagonist587
Factor Xa inhibitor918
Folate analog metabolic inhibitor2,179
HER2/neu receptor antagonist1,201
HMG-CoA reductase inhibitor702
Interleukin-6 receptor antagonist590
Janus kinase inhibitor644
Kinase inhibitor14,301
Loop diuretic629
Microtubule inhibitor1,724
Nonsteroidal anti-inflammatory drug1,373
Nucleoside metabolic inhibitor3,436
Opioid agonist656
Osmotic laxative561
Platinum-based drug2,239
Programmed death Receptor-1 blocking antibody2,330
Prostacycline vasodilator896
Proteasome inhibitor826
Proton pump inhibitor1,071
Thalidomide analog1,264
Topoisomerase inhibitor720
Tumor necrosis factor blocker2,727
Vascular endothelial growth factor inhibitor1,190
Vinca alkaloid547

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

Reports by month

Reports that record Pleural effusion, 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 Pleural effusion
AgeReportsShareShare as a bar
Under 22640.4%
2 to 118331.4%
12 to 177671.3%
18 to 445,7929.7%
45 to 6414,43124.1%
65 to 7411,02418.4%
75 and over10,51917.6%
Age not given16,26227.2%
Sex of the patient in the reports that record Pleural effusion
SexReportsShareShare as a bar
Female29,47249.2%
Male25,95243.3%
Unknown or not given4,4687.5%

Age and sex are as the report gives them. 43.9% of these reports give the United States as the country.

Terms near this one

Official pages

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Reported Reactions. Pleural effusion: adverse event reports that record this term. https://reportedreactions.com/reaction/pleural-effusion/ 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 Pleural effusion mean in an adverse event report?

In plain words: fluid around the lung. 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 .