Pneumothorax adverse event reports that record this term

Kind of term: MedDRA preferred term
Plain meaning: a collapsed 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 2 Oct 2026. The data have the reports that FDA received through 30 Jun 2026.

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 2 Oct 2026.

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 2 Oct 2026.

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 15,610 adverse event reports that record the MedDRA preferred term Pneumothorax. In plain words, the term means: a collapsed lung. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 932 reports in the 12 months to June 2026 and 962 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 645 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, 932 (0.1%) record this term. Reports for male patients were 48.1% 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

A collapsed 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 127 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 2 Oct 2026.

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 11 Mar 2026. The site read the page on 2 Oct 2026.

Drugs that the reports with the term Pneumothorax name as a suspect product, in order of name
Drug	Class	Reports with this term
Acetaminophen		58
Actemra	Interleukin-6 receptor antagonist	76
Afinitor	Kinase inhibitor	73
Albuterol	beta2-Adrenergic agonist	71
Albuterol sulfate	beta2-Adrenergic agonist	169
Ambrisentan	Endothelin receptor antagonist	96
Ambroxol hydrochloride		102
Aredia		51
Aspirin	Nonsteroidal anti-inflammatory drug	164
Atezolizumab	Programmed death Receptor-1 blocking antibody	69
Avastin	Vascular endothelial growth factor inhibitor	250
Avonex	Interferon beta	71
Azathioprine	Purine antimetabolite	62
Aztreonam Lysine		118
Bevacizumab	Vascular endothelial growth factor inhibitor	242
Biotin	Arteriolar vasodilator	102
Bisoprolol	beta-Adrenergic blocker	104
Budesonide	Corticosteroid	70
Cabometyx	Kinase inhibitor	97
Calcium		72
Calcium carbonate	Blood coagulation factor	99
Calcium Pantothenate		81
Capecitabine	Nucleoside metabolic inhibitor	83
Carboplatin	Platinum-based drug	334
Cialis	Phosphodiesterase 5 inhibitor	62
Cisplatin	Platinum-based drug	171
Clopidogrel	P2Y12 platelet inhibitor	77
Clopidogrel bisulfate	P2Y12 platelet inhibitor	68
Colesevelam hydrochloride		90
Cosentyx	Interleukin-17A antagonist	52
Crestor	HMG-CoA reductase inhibitor	85
Cyclophosphamide	Alkylating drug	269
Cyclosporine	Calcineurin inhibitor immunosuppressant	90
Cytarabine	Nucleoside metabolic inhibitor	79
Dexamethasone	Corticosteroid	232
Diclofenac	Nonsteroidal anti-inflammatory drug	63
Diclofenac diethylamine		77
Docetaxel	Microtubule inhibitor	159
Doxorubicin	Anthracycline topoisomerase inhibitor	121
Doxorubicin hydrochloride	Anthracycline topoisomerase inhibitor	74
Dupixent	Interleukin-4 receptor alpha antagonist	95
Eliquis	Factor Xa inhibitor	59
Enbrel	Tumor necrosis factor blocker	199
Ergocalciferol	Provitamin D2 compound	96
Erlotinib	Kinase inhibitor	82
Esbriet	Pyridone	118
Etoposide	Topoisomerase inhibitor	178
Fentanyl	Opioid agonist	59
Fluorouracil	Nucleoside metabolic inhibitor	97
Fluticasone Propionate Salmeterol Xinafoate		90
Gabapentin	Anti-epileptic agent	76
Gemcitabine	Nucleoside metabolic inhibitor	81
Ginkgo		83
Herbals		90
Humira		642
Hydroxychloroquine	Antimalarial	56
Ibuprofen	Nonsteroidal anti-inflammatory drug	143
Ifosfamide	Alkylating drug	76
Imbruvica	Kinase inhibitor	86
Imfinzi	Programmed death Ligand-1 blocker	56
Infliximab	Tumor necrosis factor blocker	56
Ipratropium bromide	Anticholinergic	114
Keytruda	Programmed death Receptor-1 blocking antibody	189
Lenvatinib	Kinase inhibitor	98
Lenvima	Kinase inhibitor	107
Letairis	Endothelin receptor antagonist	50
Levofloxacin	Fluoroquinolone antibacterial	69
Linezolid	Oxazolidinone antibacterial	61
Mepolizumab	Interleukin-5 antagonist	50
Meropenem	Penem antibacterial	59
Methotrexate	Folate analog metabolic inhibitor	401
Methotrexate sodium	Folate analog metabolic inhibitor	58
Methylprednisolone	Corticosteroid	206
Mometasone	Corticosteroid	78
Mometasone furoate	Corticosteroid	97
Mycophenolate mofetil	Antimetabolite immunosuppressant	161
Nivolumab	Programmed death Receptor-1 blocking antibody	140
Ofev	Kinase inhibitor	274
Omeprazole	Proton pump inhibitor	66
Opdivo	Programmed death Receptor-1 blocking antibody	120
Opsumit	Endothelin receptor antagonist	95
Orkambi	Cystic fibrosis transmembrane conductance regulator potentiator	50
Oxaliplatin	Platinum-based drug	112
Paclitaxel	Microtubule inhibitor	240
Pazopanib	Kinase inhibitor	62
Pembrolizumab	Programmed death Receptor-1 blocking antibody	89
Pemetrexed	Folate analog metabolic inhibitor	62
Pradaxa	Direct thrombin inhibitor	71
Praluent	PCSK9 inhibitor	98
Prednisolone	Corticosteroid	263
Prednisone	Corticosteroid	335
Prograf	Calcineurin inhibitor immunosuppressant	54
Propofol	General anesthetic	81
Remdesivir	SARS-CoV-2 nucleotide analog RNA polymerase inhibitor	62
Remicade	Tumor necrosis factor blocker	139
Remodulin	Prostacycline vasodilator	66
Repatha	PCSK9 inhibitor	61
Revlimid	Thalidomide analog	114
Rinvoq	Janus kinase inhibitor	99
Rituximab	CD20-directed cytolytic antibody	216
Rivaroxaban	Factor Xa inhibitor	77
Rosuvastatin calcium	HMG-CoA reductase inhibitor	80
Simponi	Tumor necrosis factor blocker	50
Skyrizi	Interleukin-23 antagonist	86
Symbicort	Corticosteroid	124
Tacrolimus	Calcineurin inhibitor immunosuppressant	175
Tadalafil	Phosphodiesterase 5 inhibitor	119
Tagrisso	Kinase inhibitor	65
Tamsulosin		61
Tamsulosin hydrochloride	alpha-Adrenergic blocker	60
Taxol		67
Taxotere		70
Tiotropium bromide	Anticholinergic	171
Tocilizumab	Interleukin-6 receptor antagonist	104
Tocopherol		93
Tracleer	Endothelin receptor antagonist	96
Trastuzumab	HER2/neu receptor antagonist	70
Tysabri	Integrin receptor antagonist	62
Vancomycin	Glycopeptide antibacterial	56
Vincristine		109
Vincristine sulfate	Vinca alkaloid	60
Vitamin d	Provitamin D2 compound	53
Voriconazole	Azole antifungal	50
Votrient	Kinase inhibitor	140
Xarelto	Factor Xa inhibitor	127
Xolair	Anti-IgE	61
Zometa		93

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 47 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 2 Oct 2026.

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 11 Mar 2026. The site read the page on 2 Oct 2026.

Pharmacologic classes of the drugs that the reports with the term Pneumothorax name, in order of name
Class	Reports with this term
Alkylating drug	467
Aminoglycoside antibacterial	111
Angiotensin 2 receptor blocker	134
Anthracycline topoisomerase inhibitor	212
Anti-epileptic agent	120
Anticholinergic	383
Antimetabolite immunosuppressant	212
Arteriolar vasodilator	102
Atypical antipsychotic	159
Azole antifungal	124
Benzodiazepine	125
beta-Adrenergic blocker	184
beta2-Adrenergic agonist	301
Blood coagulation factor	123
Calcineurin inhibitor immunosuppressant	346
CD20-directed cytolytic antibody	292
Corticosteroid	1,729
Endothelin receptor antagonist	365
Factor Xa inhibitor	298
Fluoroquinolone antibacterial	135
Folate analog metabolic inhibitor	565
General anesthetic	110
HER2/neu receptor antagonist	185
HMG-CoA reductase inhibitor	213
Integrin receptor antagonist	108
Interleukin-4 receptor alpha antagonist	102
Interleukin-6 receptor antagonist	198
Janus kinase inhibitor	212
Kinase inhibitor	1,757
Microtubule inhibitor	453
Nonsteroidal anti-inflammatory drug	462
Nucleoside metabolic inhibitor	494
Opioid agonist	376
P2Y12 platelet inhibitor	158
PCSK9 inhibitor	221
Phosphodiesterase 5 inhibitor	229
Platinum-based drug	617
Programmed death Receptor-1 blocking antibody	656
Prostacycline vasodilator	212
Proton pump inhibitor	156
Provitamin D2 compound	149
Pyridone	142
Serotonin reuptake inhibitor	155
Thalidomide analog	143
Topoisomerase inhibitor	192
Tumor necrosis factor blocker	555
Vascular endothelial growth factor inhibitor	508

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

Reports by month

Reports that record Pneumothorax, by month, five years to June 2026

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 Pneumothorax
Age	Reports	Share
Under 2	332	2.1%
2 to 11	295	1.9%
12 to 17	406	2.6%
18 to 44	2,032	13%
45 to 64	3,643	23.3%
65 to 74	2,547	16.3%
75 and over	1,690	10.8%
Age not given	4,665	29.9%

Sex of the patient in the reports that record Pneumothorax
Sex	Reports	Share
Female	6,760	43.3%
Male	7,511	48.1%
Unknown or not given	1,339	8.6%

Age and sex are as the report gives them. 48.1% of these reports give the United States as the country.

Terms near this one

These are the next terms in the A to Z list. The links are for navigation.

Official pages

MedWatch Online Voluntary Reporting FormThe online form of FDA for a voluntary report.
MedWatch: The FDA Safety Information and Adverse Event Reporting ProgramThe page of the FDA program that receives reports about drugs and devices.
FDA Adverse Event Monitoring System (AEMS) Public DashboardThe public dashboard of FDA for adverse event reports on drugs and biologics.

The site checked these addresses on 2 Oct 2026. The links open in a new tab.

Cite this page

Reported Reactions. Pneumothorax: adverse event reports that record this term. https://reportedreactions.com/reaction/pneumothorax/ Source: U.S. Food and Drug Administration, openFDA Drug Adverse Event (FAERS) files, release of 29 Oct 2026. Reports received through 30 Jun 2026.

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 Pneumothorax mean in an adverse event report?

In plain words: a collapsed 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 2 Oct 2026.

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 2 Oct 2026.

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 2 Oct 2026.

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