Reported Reactions

Adverse event reports that FDA received

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Tachycardia adverse event reports that record this term

Kind of term
MedDRA preferred term
Plain meaning
fast heart rate

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 87,319 adverse event reports that record the MedDRA preferred term Tachycardia. In plain words, the term means: fast heart rate. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 4,956 reports in the 12 months to June 2026 and 4,848 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 153 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, 4,956 (0.4%) record this term. Reports for patients aged 18 to 44 were 25.4% of the reports that record this term and 12.3% 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

Fast heart rate. 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 63 drug pages with 500 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 Tachycardia name as a suspect product, in order of name
DrugClassReports with this term
Acetaminophen1,513
AdalimumabTumor necrosis factor blocker587
Alcohol527
AlprazolamBenzodiazepine520
AmlodipineCalcium channel blocker674
ApixabanFactor Xa inhibitor582
AspirinNonsteroidal anti-inflammatory drug940
Bisoprololbeta-Adrenergic blocker633
Bisoprolol fumaratebeta-Adrenergic blocker592
BupropionAminoketone525
CarboplatinPlatinum-based drug993
Cetirizine hydrochlorideHistamine-1 receptor antagonist562
ClozapineAtypical antipsychotic1,378
ClozarilAtypical antipsychotic1,383
CyclophosphamideAlkylating drug903
CytarabineNucleoside metabolic inhibitor698
DexamethasoneCorticosteroid906
DiazepamBenzodiazepine902
Diclofenac sodiumNonsteroidal anti-inflammatory drug524
DigoxinCardiac glycoside697
DocetaxelMicrotubule inhibitor542
EnbrelTumor necrosis factor blocker701
EscitalopramSerotonin reuptake inhibitor595
EsomeprazoleProton pump inhibitor589
EtoposideTopoisomerase inhibitor526
FentanylOpioid agonist597
FluoxetineSerotonin reuptake inhibitor586
GabapentinAnti-epileptic agent516
Humira1,265
HydrochlorothiazideThiazide diuretic847
IbuprofenNonsteroidal anti-inflammatory drug1,019
InfliximabTumor necrosis factor blocker606
LamotrigineAnti-epileptic agent504
LansoprazoleProton pump inhibitor536
Levothyroxine sodiuml-Thyroxine552
LorazepamBenzodiazepine766
Lyrica509
MetforminBiguanide676
MethotrexateFolate analog metabolic inhibitor1,408
Mirtazapine954
Mycophenolate mofetilAntimetabolite immunosuppressant632
NaproxenNonsteroidal anti-inflammatory drug626
Novothyrox674
OlanzapineAtypical antipsychotic1,381
OxaliplatinPlatinum-based drug709
PaclitaxelMicrotubule inhibitor806
PrednisoloneCorticosteroid586
PrednisoneCorticosteroid1,346
Pregabalin874
PropofolGeneral anesthetic570
QuetiapineAtypical antipsychotic1,377
Quetiapine fumarateAtypical antipsychotic543
RemicadeTumor necrosis factor blocker1,270
RisperdalAtypical antipsychotic509
RisperidoneAtypical antipsychotic805
RituximabCD20-directed cytolytic antibody1,028
SeroquelAtypical antipsychotic560
SertralineSerotonin reuptake inhibitor776
SimvastatinHMG-CoA reductase inhibitor821
TocilizumabInterleukin-6 receptor antagonist576
Tramadol679
Tramadol hydrochlorideOpioid agonist628
VenlafaxineSerotonin and norepinephrine reuptake inhibitor736

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 28 pharmacologic classes with 1,000 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 Tachycardia name, in order of name
ClassReports with this term
Alkylating drug1,410
Angiotensin 2 receptor blocker2,016
Anti-epileptic agent2,121
Atypical antipsychotic9,798
Benzodiazepine3,965
beta-Adrenergic blocker2,803
Bisphosphonate1,326
Calcium channel blocker1,271
CD20-directed cytolytic antibody1,880
Central nervous system stimulant1,377
Corticosteroid6,487
Factor Xa inhibitor1,265
Folate analog metabolic inhibitor1,735
Histamine-1 receptor antagonist2,442
HMG-CoA reductase inhibitor2,189
Human immunoglobulin G1,055
Interleukin-6 receptor antagonist1,204
Kinase inhibitor2,507
Microtubule inhibitor1,396
Nitrate vasodilator1,053
Nonsteroidal anti-inflammatory drug5,185
Nucleoside metabolic inhibitor2,210
Opioid agonist4,252
Platinum-based drug2,179
Proton pump inhibitor2,607
Serotonin and norepinephrine reuptake inhibitor2,024
Serotonin reuptake inhibitor4,568
Tumor necrosis factor blocker4,866

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

Reports by month

Reports that record Tachycardia, by month, five years to June 2026
05001,00020222023202420252026

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 Tachycardia
AgeReportsShareShare as a bar
Under 21,0561.2%
2 to 112,3302.7%
12 to 173,3153.8%
18 to 4422,18025.4%
45 to 6420,39523.4%
65 to 749,74911.2%
75 and over6,8677.9%
Age not given21,42724.5%
Sex of the patient in the reports that record Tachycardia
SexReportsShareShare as a bar
Female48,51355.6%
Male30,91435.4%
Unknown or not given7,8929%

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

Official pages

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Reported Reactions. Tachycardia: adverse event reports that record this term. https://reportedreactions.com/reaction/tachycardia/ 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 Tachycardia mean in an adverse event report?

In plain words: fast heart rate. 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 .