Parkinsonism 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 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 9,604 adverse event reports that record the MedDRA preferred term Parkinsonism. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 676 reports in the 12 months to June 2026 and 766 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 824 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, 676 (0.1%) record this term. Reports for female patients were 44.6% of the reports that record this term and 52.7% 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 132 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 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 Parkinsonism name as a suspect product, in order of name
Drug	Class	Reports with this term
Abilify	Atypical antipsychotic	587
Abilify Maintena		90
Acetaminophen		64
Albuterol	beta2-Adrenergic agonist	62
Allopurinol	Xanthine oxidase inhibitor	64
Alprazolam	Benzodiazepine	117
Amisulpride	Dopamine-2 receptor antagonist	64
Amlodipine	Calcium channel blocker	85
Aricept	Cholinesterase inhibitor	35
Aripiprazole	Atypical antipsychotic	666
Aspirin	Nonsteroidal anti-inflammatory drug	26
Atorvastatin		61
Austedo		87
Benserazide Levodopa		35
Betahistine		59
Bisoprolol	beta-Adrenergic blocker	25
Bromazepam		67
Bupropion	Aminoketone	40
Bupropion hydrochloride	Aminoketone	49
Candesartan	Angiotensin 2 receptor blocker	27
Carbamazepine	Mood stabilizer	29
Carbidopa levodopa	Aromatic amino acid	84
Cariprazine	Atypical antipsychotic	51
Carvykti		266
Chlorpromazine	Phenothiazine	78
Ciltacabtagene autoleucel		62
Citalopram	Serotonin reuptake inhibitor	178
Citalopram hydrobromide	Serotonin reuptake inhibitor	59
Clomipramine		37
Clonazepam	Benzodiazepine	163
Clozapine	Atypical antipsychotic	338
Clozaril	Atypical antipsychotic	56
Cyclophosphamide	Alkylating drug	29
Cymbalta		56
Dabigatran		62
Denosumab	RANK ligand inhibitor	27
Depakene		30
Depakote	Anti-epileptic agent	61
Diazepam	Benzodiazepine	105
Divalproex sodium	Anti-epileptic agent	52
Donepezil		84
Duodopa		49
Escitalopram	Serotonin reuptake inhibitor	107
Exelon	Cholinesterase inhibitor	27
Fluoxetine	Serotonin reuptake inhibitor	125
Flupentixol		35
Furosemide	Loop diuretic	114
Gabapentin	Anti-epileptic agent	82
Geodon	Atypical antipsychotic	55
Gliclazide		66
Haldol		121
Haloperidol	Typical antipsychotic	368
Haloperidol decanoate	Typical antipsychotic	37
Hydrochlorothiazide	Thiazide diuretic	70
Hydroxyzine	Antihistamine	64
Ingrezza	Vesicular monoamine transporter 2 inhibitor	608
Invega	Atypical antipsychotic	70
Invega Sustenna	Atypical antipsychotic	93
Isosorbide mononitrate	Nitrate vasodilator	64
Lamictal	Anti-epileptic agent	48
Lamotrigine	Anti-epileptic agent	79
Latuda	Atypical antipsychotic	77
Leponex		27
Levetiracetam		136
Levothyroxine		62
Lithium	Mood stabilizer	162
Lithium carbonate	Mood stabilizer	129
Lorazepam	Benzodiazepine	254
Loxapine		40
Lyrica		50
Metformin	Biguanide	167
Metformin hydrochloride	Biguanide	58
Metoclopramide	Dopamine-2 receptor antagonist	432
Metoclopramide hydrochloride	Dopamine-2 receptor antagonist	161
Metoprolol	beta-Adrenergic blocker	74
Metronidazole	Nitroimidazole antimicrobial	32
Mirtazapine		148
Naproxen	Nonsteroidal anti-inflammatory drug	27
Nuplazid	Atypical antipsychotic	34
Olanzapine	Atypical antipsychotic	831
Omeprazole	Proton pump inhibitor	123
Ondansetron	Serotonin-3 receptor antagonist	39
Oxcarbazepine	Anti-epileptic agent	32
Paliperidone	Atypical antipsychotic	104
Paliperidone palmitate	Atypical antipsychotic	29
Paroxetine	Serotonin reuptake inhibitor	78
Paroxetine hydrochloride	Serotonin reuptake inhibitor	36
Paxil	Serotonin reuptake inhibitor	92
Perphenazine	Phenothiazine	78
Potassium chloride	Osmotic laxative	68
Pramipexole	Nonergot dopamine agonist	44
Pregabalin		162
Prochlorperazine	Phenothiazine	37
Quetiapine	Atypical antipsychotic	588
Quetiapine fumarate	Atypical antipsychotic	230
Ramipril	Angiotensin converting enzyme inhibitor	114
Reglan	Dopamine-2 receptor antagonist	160
Rexulti	Atypical antipsychotic	116
Risperdal	Atypical antipsychotic	300
Risperdal Consta		48
Risperidone	Atypical antipsychotic	749
Rivastigmine	Cholinesterase inhibitor	49
Saphris	Atypical antipsychotic	26
Seroquel	Atypical antipsychotic	169
Sertraline	Serotonin reuptake inhibitor	277
Sertraline hydrochloride	Serotonin reuptake inhibitor	59
Simvastatin	HMG-CoA reductase inhibitor	55
Sinemet	Aromatic amino acid	44
Sodium valproate		27
Spironolactone	Aldosterone antagonist	64
Sulpiride		42
Tacrolimus	Calcineurin inhibitor immunosuppressant	46
Tavor		41
Tetrabenazine	Vesicular monoamine transporter 2 inhibitor	49
Torsemide	Loop diuretic	32
Tramadol		70
Tramadol hydrochloride	Opioid agonist	34
Trazodone		108
Trihexyphenidyl		35
Valproate		33
Valproate sodium	Anti-epileptic agent	95
Valproic acid	Anti-epileptic agent	232
Venlafaxine	Serotonin and norepinephrine reuptake inhibitor	119
Venlafaxine hydrochloride	Serotonin and norepinephrine reuptake inhibitor	47
Xenazine	Vesicular monoamine transporter 2 inhibitor	42
Xeplion		45
Zeldox		38
Ziprasidone	Atypical antipsychotic	50
Ziprasidone hydrochloride	Atypical antipsychotic	64
Zoloft	Serotonin reuptake inhibitor	25
Zolpidem	gamma-Aminobutyric acid A receptor positive modulator	80
Zyprexa	Atypical antipsychotic	262

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 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 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 Parkinsonism name, in order of name
Class	Reports with this term
Aldosterone antagonist	64
Alkylating drug	36
Aminoketone	92
Angiotensin 2 receptor blocker	96
Angiotensin converting enzyme inhibitor	119
Anti-epileptic agent	732
Anticholinergic	34
Antihistamine	78
Aromatic amino acid	174
Atypical antipsychotic	5,629
Benzodiazepine	731
beta-Adrenergic blocker	164
beta2-Adrenergic agonist	79
Biguanide	228
Calcineurin inhibitor immunosuppressant	65
Calcium channel blocker	105
Cholinesterase inhibitor	124
Corticosteroid	73
Cytochrome P450 3A inhibitor	28
Dihydropyridine calcium channel blocker	25
Dopamine-2 receptor antagonist	817
gamma-Aminobutyric acid A receptor positive modulator	97
Hepatitis B virus nucleoside analog reverse transcriptase inhibitor	32
Histamine-1 receptor antagonist	30
HMG-CoA reductase inhibitor	90
Human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor	25
Kinase inhibitor	25
Loop diuretic	146
Mood stabilizer	334
Nitrate vasodilator	73
Nitroimidazole antimicrobial	32
Nonergot dopamine agonist	103
Nonsteroidal anti-inflammatory drug	64
Opioid agonist	84
Osmotic laxative	76
Phenothiazine	223
Platinum-based drug	26
Protease inhibitor	25
Proton pump inhibitor	198
RANK ligand inhibitor	27
Serotonin and norepinephrine reuptake inhibitor	234
Serotonin reuptake inhibitor	1,137
Serotonin-3 receptor antagonist	39
Thiazide diuretic	70
Typical antipsychotic	405
Vesicular monoamine transporter 2 inhibitor	699
Xanthine oxidase inhibitor	64

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

Reports by month

Reports that record Parkinsonism, 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 Parkinsonism
Age	Reports	Share
Under 2	13	0.1%
2 to 11	40	0.4%
12 to 17	130	1.4%
18 to 44	1,006	10.5%
45 to 64	2,066	21.5%
65 to 74	1,739	18.1%
75 and over	1,520	15.8%
Age not given	3,090	32.2%

Sex of the patient in the reports that record Parkinsonism
Sex	Reports	Share
Female	4,282	44.6%
Male	3,918	40.8%
Unknown or not given	1,404	14.6%

Age and sex are as the report gives them. 39.7% 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. Parkinsonism: adverse event reports that record this term. https://reportedreactions.com/reaction/parkinsonism/ 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 Parkinsonism 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 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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