Reported Reactions

Adverse event reports that FDA received

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Bradykinesia 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 February 2004 to June 2026, FDA received 5,749 adverse event reports that record the MedDRA preferred term Bradykinesia. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 508 reports in the 12 months to June 2026 and 580 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 982 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, 508 (under 0.1%) record this term. Reports for male patients were 44% 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.

Data version

openFDA FAERS release of 29 Oct 2026. Reports received through 30 Jun 2026.

Drugs in these reports

The table has the 94 drug pages with 25 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 Bradykinesia name as a suspect product, in order of name
DrugClassReports with this term
AbilifyAtypical antipsychotic38
Acetaminophen53
Albuterolbeta2-Adrenergic agonist29
AllopurinolXanthine oxidase inhibitor37
AlprazolamBenzodiazepine144
AmantadineInfluenza A M2 protein inhibitor35
AmlodipineCalcium channel blocker54
AripiprazoleAtypical antipsychotic91
Atorvastatin50
Atorvastatin calciumHMG-CoA reductase inhibitor26
AvonexInterferon beta59
Benserazide Levodopa32
Betahistine30
Bromazepam39
BuprenorphinePartial opioid agonist32
Carbidopa levodopaAromatic amino acid803
CitalopramSerotonin reuptake inhibitor82
ClonazepamBenzodiazepine86
ClozapineAtypical antipsychotic79
Codeine61
Dabigatran32
DenosumabRANK ligand inhibitor27
DiazepamBenzodiazepine112
Donepezil44
Duodopa352
DuopaAromatic amino acid48
EntacaponeCatechol-O-Methyltransferase inhibitor25
EntrestoAngiotensin 2 receptor blocker44
EscitalopramSerotonin reuptake inhibitor69
Foscarbidopa/foslevodopa128
FurosemideLoop diuretic37
GabapentinAnti-epileptic agent61
Gliclazide44
HaloperidolTypical antipsychotic98
Humira25
HydrochlorothiazideThiazide diuretic40
HydroxyzineAntihistamine42
IbranceKinase inhibitor34
IngrezzaVesicular monoamine transporter 2 inhibitor100
Isosorbide mononitrateNitrate vasodilator33
Lacosamide31
LamotrigineAnti-epileptic agent36
Levetiracetam46
Levomethadone40
Levothyroxine32
LorazepamBenzodiazepine205
Lyrica51
MetforminBiguanide56
MetoclopramideDopamine-2 receptor antagonist78
Metoprololbeta-Adrenergic blocker35
Mirtazapine108
MorphineOpioid agonist51
Morphine sulfateOpioid agonist28
NeuproNonergot dopamine agonist48
Nordazepam81
NuplazidAtypical antipsychotic180
OlanzapineAtypical antipsychotic148
OmeprazoleProton pump inhibitor63
OngentysCatechol-O-Methyltransferase inhibitor47
OrgovyxGonadotropin releasing hormone receptor antagonist29
OxazepamBenzodiazepine67
OxcarbazepineAnti-epileptic agent42
ParoxetineSerotonin reuptake inhibitor60
Potassium chlorideOsmotic laxative38
PramipexoleNonergot dopamine agonist42
PrednisoneCorticosteroid26
Pregabalin95
QuetiapineAtypical antipsychotic218
Quetiapine fumarateAtypical antipsychotic66
RamiprilAngiotensin converting enzyme inhibitor53
RisperdalAtypical antipsychotic36
RisperidoneAtypical antipsychotic153
RivastigmineCholinesterase inhibitor43
Rivotril74
RopiniroleNonergot dopamine agonist26
RytaryAromatic amino acid37
SeroquelAtypical antipsychotic47
SertralineSerotonin reuptake inhibitor112
SinemetAromatic amino acid69
SpironolactoneAldosterone antagonist35
Stalevo27
Tavor58
Tecfidera76
TemazepamBenzodiazepine53
Topiramate27
Tramadol49
TysabriIntegrin receptor antagonist60
Valproic acidAnti-epileptic agent50
VenlafaxineSerotonin and norepinephrine reuptake inhibitor27
Vyalev35
XanaxBenzodiazepine62
XeljanzJanus kinase inhibitor88
Zolpidemgamma-Aminobutyric acid A receptor positive modulator77
Zolpidem tartrategamma-Aminobutyric acid A receptor positive modulator34

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 43 pharmacologic classes with 25 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 Bradykinesia name, in order of name
ClassReports with this term
Aldosterone antagonist45
Angiotensin 2 receptor blocker75
Angiotensin converting enzyme inhibitor73
Anti-epileptic agent264
Antihistamine55
Aromatic amino acid1,009
Atypical antipsychotic1,151
Benzodiazepine763
beta-Adrenergic blocker71
beta2-Adrenergic agonist35
Biguanide69
Calcium channel blocker62
Catechol-O-Methyltransferase inhibitor72
CD20-directed cytolytic antibody37
Cholinesterase inhibitor58
Corticosteroid57
Dopamine-2 receptor antagonist89
gamma-Aminobutyric acid A receptor positive modulator114
Gonadotropin releasing hormone receptor antagonist29
HMG-CoA reductase inhibitor52
Influenza A M2 protein inhibitor44
Insulin analog28
Integrin receptor antagonist62
Interferon beta73
Janus kinase inhibitor107
Kinase inhibitor93
Loop diuretic79
Mood stabilizer69
Nitrate vasodilator39
Nonergot dopamine agonist146
Nonsteroidal anti-inflammatory drug74
Opioid agonist164
Osmotic laxative38
Partial opioid agonist32
Platinum-based drug28
Proton pump inhibitor107
RANK ligand inhibitor27
Serotonin and norepinephrine reuptake inhibitor56
Serotonin reuptake inhibitor458
Thiazide diuretic40
Typical antipsychotic98
Vesicular monoamine transporter 2 inhibitor113
Xanthine oxidase inhibitor37

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

Reports by month

Reports that record Bradykinesia, 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 Bradykinesia
AgeReportsShareShare as a bar
Under 280.1%
2 to 11240.4%
12 to 17761.3%
18 to 4469812.1%
45 to 641,13619.8%
65 to 741,13119.7%
75 and over93116.2%
Age not given1,74530.4%
Sex of the patient in the reports that record Bradykinesia
SexReportsShareShare as a bar
Female2,84149.4%
Male2,52944%
Unknown or not given3796.6%

Age and sex are as the report gives them. 34.3% 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. Bradykinesia: adverse event reports that record this term. https://reportedreactions.com/reaction/bradykinesia/ 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 Bradykinesia 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 .