Reported Reactions

Adverse event reports that FDA received

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Epinephrine adverse event reports that FDA received

Name type
Generic name
Class
Catecholamine
Also reported as
Epinephrine Injection Usp, Epinephrine /00003902/, Epinephrine Inj

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.

Drug reports received through . Device reports have a separate cutoff, 30 Sep 2026. Why a report count is not a rate.

Reports on file

From January 2004 to June 2026, FDA received 10,460 adverse event reports that name Epinephrine. In these reports the drug is a suspect or interacting product.

In the same period, 31,072 further reports name it only as a concomitant medicine. The counts on this page do not include these reports.

FDA received 877 reports in the 12 months to June 2026 and 1,065 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Of the 1,332,454 drug reports that FDA received in the 12 months to June 2026, 877 (0.1%) name Epinephrine. Reports from other health professionals were 43.3% of the reports that name Epinephrine and 19.7% of all drug reports.

The number of people who use the product is not in the data. A count is not a rate. A count of reports is not a count of events or of patients, because one event can have more than one report.

There are many instances of duplicative reports and some reports do not contain all the necessary information.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Suspect product

FDA records each drug in a report as suspect, concomitant or interacting. This page counts the reports in which Epinephrine is suspect or interacting. FDA says:

Any number of the drugs may be marked as suspect if thought to be responsible for one or more of the reactions, but that information is not validated.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Data version

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

Since the last update

FDA says:

Many factors can influence whether or not an event will be reported, such as the time a product has been marketed and publicity about an event.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The information in these reports cannot be used to estimate the incidence (occurrence rates) of the events reported.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

The latest update of the FDA data, recorded on , changed no count of this page.

  • In April to June 2026, FDA received 199 reports that name Epinephrine.
  • In January to March 2026, FDA received 187.
  • In April to June 2025, FDA received 271.

April to June 2026 is the latest closed quarter in the data. A closed quarter is a quarter for which the FDA files have most of the reports.

All updatesFeed of updates (RSS)

Reaction lookup

These are the reaction terms that the reports record, with the number of reports for each term. Type a term or a plain word to find its count.

What this list leaves out

The table lists the 672 reaction terms that 5 or more reports record. A term with fewer than 5 reports is not in the table.

The site keeps reaction terms for 10,457 of the 10,460 reports (99.9%).

The reports of the other years are not in the counts.

So a count in the table can be lower than the count of FDA.

The table shows the first 50 of 672 terms.

Reaction terms in the reports that name Epinephrine, most reports first
Reaction term (MedDRA) and plain meaningReportsShare of the 10,460 reports
Drug ineffectivethe medicine did not work as expected2,91527.9%
Drug hypersensitivityan allergic-type reaction (the term names a medicine)8287.9%
Off label useused for a purpose or in a way not on the label7076.8%
Product quality issuea problem with the product itself6576.3%
Hypotensionlow blood pressure6566.3%
Cardiac arrestthe heart stopped4634.4%
Toxicity to various agentspoisoning or toxic effect of one or more substances4013.8%
Dyspnoeashortness of breath3893.7%
Liquid product physical issue3773.6%
Condition aggravatedthe condition being treated got worse3653.5%
Stress cardiomyopathy3313.2%
Bradycardiaslow heart rate3163%
Device failurethe device failed3113%
Tachycardiafast heart rate3062.9%
Anaphylactic reactiona severe, sudden allergic reaction3022.9%
Hypertensionhigh blood pressure2832.7%
Overdosea dose above the recommended amount2702.6%
Headachehead pain2642.5%
Accidental exposure to product2482.4%
Cardiogenic shockshock from the heart failing to pump2302.2%
Palpitationsawareness of the heartbeat2212.1%
Product use in unapproved indicationused for a purpose not on the label2162.1%
Drug ineffective for unapproved indication2142%
Hypersensitivityan allergic-type reaction2142%
Maternal exposure during pregnancythe mother took the medicine during pregnancy2062%
Metabolic acidosistoo much acid in the body fluids2031.9%
Acute kidney injurysudden loss of kidney function1861.8%
Angioedemadeep swelling of skin or mucous membranes1811.7%
Ventricular tachycardiaa fast rhythm from the lower heart chambers1801.7%
Rashskin rash1781.7%
Nauseafeeling sick1751.7%
Intentional overdosea deliberate overdose1731.7%
Fatiguetiredness1701.6%
Heart rate increaseda fast heart rate reading1671.6%
Drug interactionan interaction between medicines1661.6%
Accidental overdosean accidental overdose1631.6%
Loss of consciousnesspassing out1561.5%
Pulmonary oedemafluid in the lungs1541.5%
Therapy non-responderthe treatment did not work1541.5%
Blood pressure increaseda raised blood pressure reading1531.5%
Shockshock, a collapse of the circulation1521.5%
Medication errora mistake in prescribing, dispensing or taking a medicine1501.4%
Foetal exposure during pregnancythe unborn baby was exposed to the medicine1471.4%
Painpain, site not specified1471.4%
Vomitingbeing sick1451.4%
Pain in extremitypain in an arm or leg1421.4%
Therapeutic product effect incomplete1411.3%
Asthma1391.3%
Lactic acidosisa build-up of lactic acid in the blood1391.3%
Loss of personal independence in daily activities1391.3%

Download all 672 terms of Epinephrine (CSV)

The counts add to more than 10,460 reports, because one report can record more than one term. FDA says:

No individual drug is connected to any individual reaction. 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 .

The CSV file has the same rows and the same limits. Its last row is a note that says so.

MedDRA term

The person who codes a report selects the preferred term that agrees best with the description of the reporter. The words under a term are the plain meaning that this site gives.

Not the label

The FDA-approved label of a product lists its adverse reactions. See the official pages at the end of this page.

Same ingredient, other names

Reporters write a brand name or a generic name. Each name has its own page and its own count.

Names of Epinephrine with a page, in the order generic names, brand names, names as reported
NameName typeReports
Epinephrine (this page)Generic name10,460
Epinephrine hydrochlorideGeneric name268
EpipenBrand name3,696
Epipen JrBrand name664
Primatene MistBrand name385

Sum of the separately reported names: 15,473. A report that names two of these names is in the sum two times. The sum is not the number of reports for the ingredient.

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 .

Outcomes by year

The table gives the outcomes that the reporters gave, in the terms of FDA.

Outcomes in the reports that name Epinephrine, by the year of the openFDA file that holds the report

The table continues to the right.

Year of the openFDA fileReportsSeriousDeathLife-threateningHospitalization (initial or prolonged)Disability or Permanent DamageCongenital Anomaly/Birth DefectOther Serious (Important Medical Events)Not serious
200450353613401515
20054741981710156
200655402614102515
2007826633125005416
200885795282630406
20091461438545590703
20101151128195610653
201114413812233650976
201214812972744608419
2013143118142649607025
2014171149231746209022
201540226831344560185134
201653029561479560203235
20178063996111114390323407
20185063296110714462241177
201963944573138222137287194
2020699587151185364132299112
20211,251900124390525171499351
20228346568726138886364178
20231,047873228247548159446174
2024953806109286459216462147
20251,10890612133752786514202
2026499434701612984019865

An outcome in a report is not proof that the drug was the cause. The reporter gives the outcome, and FDA does not verify it. FDA says:

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 .

The six headings with the names of FDA are the outcome terms of FDA. A report can have more than one outcome. The columns Serious and Not serious are the two values of the openFDA field serious. For the value serious, openFDA gives this description:

The adverse event resulted in death, a life threatening condition, hospitalization, disability, congenital anomaly, or other serious condition

Source: openFDA, Drug adverse event fields (YAML reference). The site read the page on .

The year is the year of the openFDA file that holds the latest version of the report. It is not always the year in which FDA first received the report. The chart of the next section uses the year of first receipt. The latest year is not complete.

Reports by year and month

Reports that name Epinephrine, by the year in which FDA received them
01,0002,000200420082012201620202024

The column of 2026 has an outline, because the year is not complete. It has the reports that FDA received through June 2026 only.

Show the figures of the chart as a table
Reports that name Epinephrine, by the year in which FDA received them
YearReports
200447
200550
200650
200784
200884
2009152
2010115
2011146
2012162
2013136
2014179
2015409
2016616
2017805
2018548
2019616
2020758
20211,298
2022819
20231,011
2024966
20251,023
2026386
Reports that name Epinephrine, 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.

Why a count moves

A count moves for many reasons. The guide gives FDA's words about them.

Patients and reporters

Age of the patient in the reports that name Epinephrine
AgeReportsShareShare as a bar
Under 22652.5%
2 to 114103.9%
12 to 173873.7%
18 to 442,21521.2%
45 to 642,10520.1%
65 to 741,0149.7%
75 and over6175.9%
Age not given3,44733%
Sex of the patient in the reports that name Epinephrine
SexReportsShareShare as a bar
Female5,34351.1%
Male3,53133.8%
Unknown or not given1,58615.2%
Type of reporter in the reports that name Epinephrine
ReporterReportsShareShare as a bar
Physician2,55424.4%
Pharmacist5995.7%
Other health professional4,53443.3%
Lawyer130.1%
Consumer or non-health professional2,45023.4%
Not given3103%

Age and sex are as the report gives them. The reporter is the primary source in the report. 65.6% of the reports give the United States as the country.

Reason for use

Reason for use (indication) that the reports of Epinephrine record
Indication as recorded (MedDRA)ReportsShare
Anaphylactic reaction9739.3%
Hypotension4614.4%
Hypersensitivity3533.4%
Cardiac arrest2142%
Angioedema1961.9%
Local anaesthesia1731.7%

The reporter fills in the indication, and the field is often empty. Each share is of all 10,460 reports.

Drugs in the same reports

Other drugs that the reports of Epinephrine name, in any role, in order of name
DrugReports that name the two
Diphenhydramine402
Fentanyl681
Hydrocortisone500
Lidocaine894
Methylprednisolone486
Norepinephrine1,382
Phenylephrine484
Propofol586
Sodium bicarbonate431
Vasopressin960

The table has the 10 drug names that these reports name most. Two names in one report says only that the report recorded the two. It says nothing about the part of a product in the event.

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 .

Pages near this one

These links are for navigation. No count selected them. The class page lists each drug of the class.

Official pages

The site checked these addresses on . The links open in a new tab.

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Reported Reactions. Epinephrine: adverse event reports that FDA received. https://reportedreactions.com/drug/epinephrine/ 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.

A report is in the count when it names Epinephrine as a suspect or interacting product. The 31,072 reports that name it only as a concomitant medicine are not in the count. 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

Do these reports show that Epinephrine was responsible for the reactions?

No. FDA says:

For any given report, there is no certainty that a suspected drug caused the event.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

A reaction can relate to the condition that the drug treats, to other medicines, or to something else.

Is this the list of reactions on the label of Epinephrine?

No. It is a count of what people reported to FDA: 10,460 reports from January 2004 to June 2026. The FDA-approved label of a product lists its adverse reactions. The official pages at the end of this page link to the labels.

Who sent these reports?

Other health professional (43.3%), physician (24.4%) and consumer or non-health professional (23.4%). These are the types of reporter for the reports that name this drug.

If a manufacturer receives an adverse event report, it is normally required to send the report to FDA.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

How does a person report an adverse event?

FDA runs MedWatch, a program that takes voluntary reports from health professionals, patients and consumers. The guide on how to report has the links.