Reported Reactions

Adverse event reports that FDA received

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Impaired work ability adverse event reports that record this term

Kind of term
MedDRA preferred term
Plain meaning
reduced ability to work

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 21,124 adverse event reports that record the MedDRA preferred term Impaired work ability. In plain words, the term means: reduced ability to work. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 787 reports in the 12 months to June 2026 and 798 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 730 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, 787 (0.1%) record this term. Reports for patients aged 45 to 64 were 31.7% 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

Reduced ability to work. 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 93 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 Impaired work ability name as a suspect product, in order of name
DrugClassReports with this term
AbilifyAtypical antipsychotic132
Acetaminophen170
Acetaminophen Oxycodone Hydrochloride283
ActemraInterleukin-6 receptor antagonist489
AdalimumabTumor necrosis factor blocker244
Albendazole121
Amitriptyline127
Amitriptyline hydrochlorideTricyclic antidepressant103
AmpyraPotassium channel blocker580
Androgel452
AravaAntirheumatic agent425
Asacol161
AspirinNonsteroidal anti-inflammatory drug197
AzathioprinePurine antimetabolite121
BudesonideCorticosteroid168
CandesartanAngiotensin 2 receptor blocker147
CelebrexNonsteroidal anti-inflammatory drug200
ChantixPartial cholinergic nicotinic agonist335
CimziaTumor necrosis factor blocker210
CiproCorticosteroid102
CiprofloxacinFluoroquinolone antibacterial343
Comirnaty110
CortifoamCorticosteroid142
CortisoneCorticosteroid100
CrestorHMG-CoA reductase inhibitor129
Cymbalta221
DapagliflozinSodium-Glucose cotransporter 2 inhibitor142
DepakoteAnti-epileptic agent222
DesoximetasoneCorticosteroid123
DilaudidOpioid agonist324
DupixentInterleukin-4 receptor alpha antagonist123
EffexorSerotonin and norepinephrine reuptake inhibitor179
EnbrelTumor necrosis factor blocker965
EntyvioIntegrin receptor antagonist164
EscitalopramSerotonin reuptake inhibitor198
EsomeprazoleProton pump inhibitor160
FelodipineDihydropyridine calcium channel blocker137
FentanylOpioid agonist114
FurosemideLoop diuretic146
GabapentinAnti-epileptic agent296
Humira1,329
Hydrocodone bitartrate and acetaminophenOpioid agonist515
HydrocortisoneCorticosteroid167
HydroxychloroquineAntimalarial356
Hydroxychloroquine sulfateAntimalarial365
InfliximabTumor necrosis factor blocker262
LeflunomideAntirheumatic agent248
Levaquin235
LevofloxacinFluoroquinolone antibacterial177
LipitorHMG-CoA reductase inhibitor196
Lisdexamfetamine dimesylateCentral nervous system stimulant114
Lyrica733
MesalamineAminosalicylate177
MetforminBiguanide188
MethotrexateFolate analog metabolic inhibitor744
Methotrexate sodiumFolate analog metabolic inhibitor177
MetoclopramideDopamine-2 receptor antagonist468
MirenaProgestin170
Morphine sulfateOpioid agonist323
MS ContinOpioid agonist271
NaproxenNonsteroidal anti-inflammatory drug174
Neurontin146
NexiumProton pump inhibitor111
Novothyrox298
OmeprazoleProton pump inhibitor186
OrenciaSelective T cell costimulation modulator431
OxycodoneOpioid agonist180
Oxycodone and acetaminophenOpioid agonist284
Oxycodone hydrochlorideOpioid agonist901
OxyContinOpioid agonist937
Para-Aminosalicylic Acid104
PaxilSerotonin reuptake inhibitor114
PercocetOpioid agonist109
PlaquenilAntimalarial293
PrednisoneCorticosteroid618
Pregabalin178
RemicadeTumor necrosis factor blocker322
RituxanCD20-directed cytolytic antibody147
RituximabCD20-directed cytolytic antibody233
RosuvastatinHMG-CoA reductase inhibitor118
SeroquelAtypical antipsychotic232
SimponiTumor necrosis factor blocker147
SimvastatinHMG-CoA reductase inhibitor212
SulfasalazineAminosalicylate532
Taxotere163
Tramadol295
VedolizumabIntegrin receptor antagonist360
Venlafaxine hydrochlorideSerotonin and norepinephrine reuptake inhibitor104
VyvanseCentral nervous system stimulant140
WarfarinVitamin K antagonist142
Warfarin sodiumVitamin K antagonist131
XeljanzJanus kinase inhibitor436
ZoloftSerotonin reuptake inhibitor107

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 53 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 Impaired work ability name, in order of name
ClassReports with this term
Acetylcholine release inhibitor132
Aminoketone181
Aminosalicylate730
Androgen127
Angiotensin 2 receptor blocker261
Anti-epileptic agent731
Antimalarial1,016
Antirheumatic agent673
Atypical antipsychotic833
Benzodiazepine432
beta-Adrenergic blocker159
beta2-Adrenergic agonist101
Biguanide264
Bisphosphonate209
Calcium channel blocker120
CD20-directed cytolytic antibody409
Central nervous system stimulant385
Corticosteroid1,839
Dihydrofolate reductase inhibitor antibacterial138
Dihydropyridine calcium channel blocker235
Dopamine-2 receptor antagonist474
Fluoroquinolone antibacterial559
Folate analog metabolic inhibitor921
GLP-1 receptor agonist147
Histamine-2 receptor antagonist174
HMG-CoA reductase inhibitor736
Human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor119
Integrin receptor antagonist560
Interleukin-23 antagonist102
Interleukin-4 receptor alpha antagonist138
Interleukin-6 receptor antagonist513
Janus kinase inhibitor606
Kinase inhibitor171
l-Thyroxine138
Leukotriene receptor antagonist119
Loop diuretic204
Nonsteroidal anti-inflammatory drug992
Opioid agonist4,410
Partial cholinergic nicotinic agonist337
Partial opioid agonist174
Phosphodiesterase 4 inhibitor105
Potassium channel blocker580
Progestin234
Proton pump inhibitor736
Purine antimetabolite209
Pyrimidine synthesis inhibitor108
Selective T cell costimulation modulator446
Serotonin and norepinephrine reuptake inhibitor505
Serotonin reuptake inhibitor862
Sodium-Glucose cotransporter 2 inhibitor176
Tricyclic antidepressant122
Tumor necrosis factor blocker2,375
Vitamin K antagonist273

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

Reports by month

Reports that record Impaired work ability, 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 Impaired work ability
AgeReportsShareShare as a bar
Under 27under 0.1%
2 to 11190.1%
12 to 17490.2%
18 to 445,04823.9%
45 to 646,70431.7%
65 to 748424%
75 and over2791.3%
Age not given8,17638.7%
Sex of the patient in the reports that record Impaired work ability
SexReportsShareShare as a bar
Female12,43658.9%
Male7,24834.3%
Unknown or not given1,4406.8%

Age and sex are as the report gives them. 71% of these reports give the United States as the country.

Terms near this one

Official pages

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Reported Reactions. Impaired work ability: adverse event reports that record this term. https://reportedreactions.com/reaction/impaired-work-ability/ 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 Impaired work ability mean in an adverse event report?

In plain words: reduced ability to work. 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 .