Reported Reactions

Adverse event reports that FDA received

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Bronchospasm adverse event reports that record this term

Kind of term
MedDRA preferred term
Plain meaning
tightening of the airways

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 14,054 adverse event reports that record the MedDRA preferred term Bronchospasm. In plain words, the term means: tightening of the airways. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 609 reports in the 12 months to June 2026 and 675 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 875 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, 609 (under 0.1%) record this term. Reports for patients aged 45 to 64 were 26.2% 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

Tightening of the airways. 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 75 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 Bronchospasm name as a suspect product, in order of name
DrugClassReports with this term
Acetaminophen87
Acetylsalicylic Acid54
ActemraInterleukin-6 receptor antagonist64
Advair Diskus 100/5057
Advair HfaCorticosteroid54
Albuterolbeta2-Adrenergic agonist169
Albuterol sulfatebeta2-Adrenergic agonist203
Alvesco58
AmoxicillinPenicillin-class antibacterial113
ArikayceAminoglycoside antibacterial138
AspirinNonsteroidal anti-inflammatory drug125
Atracurium65
Augmentin '12593
Bisoprololbeta-Adrenergic blocker66
Breo ElliptaCorticosteroid66
Bridion148
BudesonideCorticosteroid137
CarboplatinPlatinum-based drug209
CefazolinCephalosporin antibacterial81
CefuroximeCephalosporin antibacterial68
DarzalexCD38-directed cytolytic antibody111
DexamethasoneCorticosteroid184
DiclofenacNonsteroidal anti-inflammatory drug112
Diclofenac sodiumNonsteroidal anti-inflammatory drug91
DiprivanGeneral anesthetic153
DupixentInterleukin-4 receptor alpha antagonist78
EnbrelTumor necrosis factor blocker156
ErbituxEpidermal growth factor receptor antagonist79
Esmeron81
FentanylOpioid agonist151
Ferinject68
Humira105
IbuprofenNonsteroidal anti-inflammatory drug227
Ipratropium bromideAnticholinergic98
Ketamine121
LidocaineAmide local anesthetic72
Lyrica58
Mabthera56
MepolizumabInterleukin-5 antagonist111
MethotrexateFolate analog metabolic inhibitor70
MidazolamBenzodiazepine56
Mometasone furoateCorticosteroid51
NucalaInterleukin-5 antagonist150
OmalizumabAnti-IgE94
OmeprazoleProton pump inhibitor60
OmnipaqueRadiographic contrast agent50
OndansetronSerotonin-3 receptor antagonist63
OrenciaSelective T cell costimulation modulator57
OxaliplatinPlatinum-based drug385
PaclitaxelMicrotubule inhibitor312
Paracetamol68
PrednisoneCorticosteroid125
PrivigenHuman immunoglobulin G63
PropofolGeneral anesthetic406
Pulmozyme76
Qvar75
RemicadeTumor necrosis factor blocker184
RituximabCD20-directed cytolytic antibody130
RocuroniumNondepolarizing neuromuscular blocker114
Rocuronium bromideNondepolarizing neuromuscular blocker168
Salbutamol67
SevofluraneGeneral anesthetic94
SingulairLeukotriene receptor antagonist69
Solu-medrolCorticosteroid56
Sufentanil105
SymbicortCorticosteroid147
Tiotropium bromideAnticholinergic187
TylenolExpectorant67
TyvasoProstacycline vasodilator71
Tyvaso DPIProstacycline vasodilator88
UltravistRadiographic contrast agent58
VancomycinGlycopeptide antibacterial128
Ventolin Hfabeta2-Adrenergic agonist59
Vioxx63
XolairAnti-IgE399

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 35 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 Bronchospasm name, in order of name
ClassReports with this term
Amide local anesthetic126
Aminoglycoside antibacterial299
Angiotensin 2 receptor blocker159
Anti-IgE493
Anticholinergic407
Benzodiazepine145
beta-Adrenergic blocker248
beta2-Adrenergic agonist477
CD20-directed cytolytic antibody236
CD38-directed cytolytic antibody166
Cephalosporin antibacterial266
Corticosteroid1,191
Epidermal growth factor receptor antagonist118
Folate analog metabolic inhibitor113
General anesthetic708
Glycopeptide antibacterial153
HMG-CoA reductase inhibitor147
Human immunoglobulin G112
Hydrolytic lysosomal glycosaminoglycan-specific enzyme107
Interleukin-5 antagonist262
Leukotriene receptor antagonist147
Microtubule inhibitor337
Nondepolarizing neuromuscular blocker342
Nonsteroidal anti-inflammatory drug663
Nucleoside metabolic inhibitor129
Opioid agonist367
P2Y12 platelet inhibitor123
PCSK9 inhibitor103
Penicillin-class antibacterial184
Phosphodiesterase 5 inhibitor104
Platinum-based drug611
Prostacycline vasodilator202
Proton pump inhibitor110
Radiographic contrast agent168
Tumor necrosis factor blocker433

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

Reports by month

Reports that record Bronchospasm, by month, five years to June 2026
05010020222023202420252026

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 Bronchospasm
AgeReportsShareShare as a bar
Under 22101.5%
2 to 115313.8%
12 to 173602.6%
18 to 442,19715.6%
45 to 643,67926.2%
65 to 742,05814.6%
75 and over1,41810.1%
Age not given3,60125.6%
Sex of the patient in the reports that record Bronchospasm
SexReportsShareShare as a bar
Female7,83355.7%
Male4,88334.7%
Unknown or not given1,3389.5%

Age and sex are as the report gives them. 29.3% 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. Bronchospasm: adverse event reports that record this term. https://reportedreactions.com/reaction/bronchospasm/ 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 Bronchospasm mean in an adverse event report?

In plain words: tightening of the airways. 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 .