Reported Reactions

Adverse event reports that FDA received

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Unresponsive to stimuli adverse event reports that record this term

Kind of term
MedDRA preferred term

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 March 2004 to June 2026, FDA received 25,384 adverse event reports that record the MedDRA preferred term Unresponsive to stimuli. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 1,628 reports in the 12 months to June 2026 and 1,427 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

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.

Data version

openFDA FAERS release of 1 Oct 2026. Reports received through 30 Jun 2026.

Drugs in these reports

The table has the 94 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 Unresponsive to stimuli name as a suspect product, in order of name
DrugClassReports with this term
Acetaminophen454
Alcohol182
AlprazolamBenzodiazepine412
Amitriptyline149
AmlodipineCalcium channel blocker219
AspirinNonsteroidal anti-inflammatory drug145
Baclofengamma-Aminobutyric acid-ergic agonist442
BupropionAminoketone209
Bupropion hydrochlorideAminoketone132
CarbamazepineMood stabilizer112
Carbidopa levodopaAromatic amino acid171
CarboplatinPlatinum-based drug214
CeftriaxoneCephalosporin antibacterial110
CitalopramSerotonin reuptake inhibitor222
Citalopram hydrobromideSerotonin reuptake inhibitor123
ClonazepamBenzodiazepine464
ClonidineCentral alpha-2 adrenergic agonist103
ClozapineAtypical antipsychotic207
ClozarilAtypical antipsychotic163
Cocaine221
CyclobenzaprineMuscle relaxant116
CyclophosphamideAlkylating drug114
CytarabineNucleoside metabolic inhibitor192
DefinityContrast agent for ultrasound imaging143
DexamethasoneCorticosteroid183
Dianeal Low Calcium Peritoneal Dialysis Solution with Dextrose104
DiazepamBenzodiazepine341
DigoxinCardiac glycoside174
DilaudidOpioid agonist147
DiphenhydramineHistamine-1 receptor antagonist188
DocetaxelMicrotubule inhibitor112
Duodopa127
DuopaAromatic amino acid116
FentanylOpioid agonist765
Fentanyl citrateOpioid agonist193
FerahemeParenteral iron replacement141
FluoxetineSerotonin reuptake inhibitor225
GabapentinAnti-epileptic agent327
HaloperidolTypical antipsychotic137
Heparin sodiumAnti-coagulant276
Heroin134
Humira213
Hydromorphone151
IbuprofenNonsteroidal anti-inflammatory drug257
LamotrigineAnti-epileptic agent280
Levetiracetam132
Lexiscan(r) (regadenoson)135
LidocaineAmide local anesthetic186
Lioresal (baclofen)gamma-Aminobutyric acid-ergic agonist153
LisinoprilAngiotensin converting enzyme inhibitor119
Loperamide119
LorazepamBenzodiazepine371
Lyrica110
MetforminBiguanide316
Metformin hydrochlorideBiguanide107
MethadoneOpioid agonist342
MethotrexateFolate analog metabolic inhibitor199
Metoprololbeta-Adrenergic blocker167
Metoprolol tartratebeta-Adrenergic blocker105
MidazolamBenzodiazepine175
MirceraErythropoiesis-stimulating agent334
Mirtazapine139
MorphineOpioid agonist369
Morphine sulfateOpioid agonist329
NuplazidAtypical antipsychotic264
OlanzapineAtypical antipsychotic369
OmeprazoleProton pump inhibitor105
OndansetronSerotonin-3 receptor antagonist183
OxaliplatinPlatinum-based drug142
OxycodoneOpioid agonist328
Oxycodone hydrochlorideOpioid agonist425
OxyContinOpioid agonist228
PaclitaxelMicrotubule inhibitor274
PrednisoneCorticosteroid126
Pregabalin267
PropofolGeneral anesthetic118
QuetiapineAtypical antipsychotic464
Quetiapine fumarateAtypical antipsychotic172
RamiprilAngiotensin converting enzyme inhibitor115
RisperidoneAtypical antipsychotic190
SeroquelAtypical antipsychotic135
SertralineSerotonin reuptake inhibitor188
Sertraline hydrochlorideSerotonin reuptake inhibitor108
TemazepamBenzodiazepine115
Tramadol236
Trazodone135
UltravistRadiographic contrast agent109
Valproic acidAnti-epileptic agent127
ValsartanAngiotensin 2 receptor blocker119
VenlafaxineSerotonin and norepinephrine reuptake inhibitor215
Venofer (iron sucrose)Parenteral iron replacement139
Vincristine sulfateVinca alkaloid109
XyremCentral nervous system depressant153
Zolpidemgamma-Aminobutyric acid A receptor positive modulator117

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 27 pharmacologic classes with 250 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 Unresponsive to stimuli name, in order of name
ClassReports with this term
Amide local anesthetic352
Aminoketone380
Angiotensin converting enzyme inhibitor254
Anti-coagulant284
Anti-epileptic agent1,099
Aromatic amino acid321
Atypical antipsychotic2,301
Benzodiazepine2,173
beta-Adrenergic blocker576
Biguanide462
Calcium channel blocker286
Corticosteroid539
Erythropoiesis-stimulating agent340
gamma-Aminobutyric acid A receptor positive modulator255
gamma-Aminobutyric acid-ergic agonist625
Histamine-1 receptor antagonist344
Kinase inhibitor250
Microtubule inhibitor390
Mood stabilizer252
Nonsteroidal anti-inflammatory drug678
Nucleoside metabolic inhibitor394
Opioid agonist3,864
Parenteral iron replacement311
Platinum-based drug435
Radiographic contrast agent254
Serotonin and norepinephrine reuptake inhibitor477
Serotonin reuptake inhibitor1,247

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

Reports by month

Reports that record Unresponsive to stimuli, 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 Unresponsive to stimuli
AgeReportsShareShare as a bar
Under 24941.9%
2 to 117853.1%
12 to 177472.9%
18 to 444,85219.1%
45 to 645,94523.4%
65 to 743,46013.6%
75 and over3,96615.6%
Age not given5,13520.2%
Sex of the patient in the reports that record Unresponsive to stimuli
SexReportsShareShare as a bar
Female12,42348.9%
Male11,22644.2%
Unknown or not given1,7356.8%

Age and sex are as the report gives them. 68.6% 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. Unresponsive to stimuli: adverse event reports that record this term. https://reportedreactions.com/reaction/unresponsive-to-stimuli/ 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 1 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 Oct 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 Unresponsive to stimuli mean in an adverse event report?

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 .