Reported Reactions

Adverse event reports that FDA received

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Kadian adverse event reports that FDA received

Name type
Product name as reported

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 February 2004 to June 2026, FDA received 20,205 adverse event reports that name Kadian. The name is as reporters wrote it. In these reports the drug is a suspect or interacting product.

In the same period, 966 further reports name it only as a concomitant medicine. The counts on this page do not include these reports.

FDA received 17 reports in the 12 months to June 2026 and 1 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, 17 (under 0.1%) name Kadian. Reports from lawyers were 84.8% of the reports that name Kadian and 2.6% 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 Kadian 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 6 reports that name Kadian.
  • In January to March 2026, FDA received 8.
  • In April to June 2025, FDA received 1.

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 190 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 20,191 of the 20,205 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 190 terms.

Reaction terms in the reports that name Kadian, most reports first
Reaction term (MedDRA) and plain meaningReportsShare of the 20,205 reports
Deaththe patient died; cause not stated by this term9,46046.8%
Toxicity to various agentspoisoning or toxic effect of one or more substances8,03639.8%
Overdosea dose above the recommended amount4,02019.9%
Drug abusemisuse of a medicine1,6498.2%
Drug dependencedependence on a medicine1,5207.5%
Drug withdrawal syndrome neonatal7403.7%
Accidental overdosean accidental overdose5962.9%
Foetal exposure during pregnancythe unborn baby was exposed to the medicine3691.8%
Maternal exposure during pregnancythe mother took the medicine during pregnancy3321.6%
Intentional product misusedeliberate use not as intended2921.4%
Drug diversion2551.3%
Painpain, site not specified2011%
Tremorshaking1380.7%
Crying1280.6%
Poor feeding infant1280.6%
Hepatitis Chepatitis C infection1260.6%
Live birth1260.6%
Opisthotonus1250.6%
Developmental delayslower development in a child1210.6%
Drug withdrawal syndromesymptoms on stopping a medicine770.4%
Exposure during pregnancythe medicine was taken during pregnancy700.3%
Completed suicidedeath by suicide690.3%
Substance abuse560.3%
Unresponsive to stimuli450.2%
Vomitingbeing sick360.2%
Nauseafeeling sick350.2%
Somnolencedrowsiness340.2%
Drug ineffectivethe medicine did not work as expected330.2%
Depressionlow mood320.2%
Drug toxicity280.1%
Hypotensionlow blood pressure270.1%
Emotional distress260.1%
Pulmonary oedemafluid in the lungs250.1%
Anxiety230.1%
Cardio-respiratory arrestthe heart and breathing stopped230.1%
Fatiguetiredness230.1%
Pulmonary congestion220.1%
Weight decreasedweight loss220.1%
Tooth loss210.1%
Coma200.1%
Multiple drug overdose200.1%
Cardiac arrestthe heart stopped190.1%
Drug hypersensitivityan allergic-type reaction (the term names a medicine)190.1%
Respiratory depressionslow or shallow breathing190.1%
Accidental death180.1%
Drug screen positive180.1%
Headachehead pain180.1%
Constipation170.1%
Falla fall170.1%
Drug abuser160.1%

Download all 190 terms of Kadian (CSV)

The counts add to more than 20,205 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.

Outcomes by year

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

Outcomes in the reports that name Kadian, 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
2004282717190051
20054845284220033
200628281221010110
200740381621600122
200892921432510610
20091331332413401220
2010183181618001702
2011949410210900
201286846853610662
201316216113114001321
20141592030086
20151780050069
20161570050048
2017435426356125044769
201817,93917,92916,851165703002,84110
20193015208021215
202046946460236613375
202130530420115713021
2022282702822251
20233015103301515
2024661114060
2025881132080
2026141410000130

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 Kadian, by the year in which FDA received them
010,00020,000200420082012201620202024

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 Kadian, by the year in which FDA received them
YearReports
200425
200550
200628
200735
200884
200952
2010198
2011176
201285
2013162
201414
201519
201616
2017436
201817,944
201931
2020689
202191
202220
202329
20243
20254
202614
Reports that name Kadian, by month, five years to June 2026
0102020222023202420252026

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 Kadian
AgeReportsShareShare as a bar
Under 21020.5%
2 to 115under 0.1%
12 to 17120.1%
18 to 441840.9%
45 to 642211.1%
65 to 74350.2%
75 and over240.1%
Age not given19,62297.1%
Sex of the patient in the reports that name Kadian
SexReportsShareShare as a bar
Female9714.8%
Male5642.8%
Unknown or not given18,67092.4%
Type of reporter in the reports that name Kadian
ReporterReportsShareShare as a bar
Physician3021.5%
Pharmacist220.1%
Other health professional890.4%
Lawyer17,13384.8%
Consumer or non-health professional2,19610.9%
Not given4632.3%

Age and sex are as the report gives them. The reporter is the primary source in the report. 99.3% of the reports give the United States as the country.

Reason for use

Reason for use (indication) that the reports of Kadian record
Indication as recorded (MedDRA)ReportsShare
Pain17,99289%
Back pain550.3%
Intentional drug misuse120.1%
Completed suicide9under 0.1%
Maternal exposure timing unspecified7under 0.1%
Eye pain5under 0.1%

The reporter fills in the indication, and the field is often empty. Each share is of all 20,205 reports.

Drugs in the same reports

Other drugs that the reports of Kadian name, in any role, in order of name
DrugReports that name the two
Actiq18,992
Duragesic18,978
Fentora18,979
Norco18,698
Opana19,009
Opana Er19,018
Oxycodone hydrochloride18,625
OxyContin18,703
Percocet19,087
Percodan18,788

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.

Official pages

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

Cite this page

Reported Reactions. Kadian: adverse event reports that FDA received. https://reportedreactions.com/drug/kadian/ 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 Kadian as a suspect or interacting product. The 966 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 Kadian 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 Kadian?

No. It is a count of what people reported to FDA: 20,205 reports from February 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?

Lawyer (84.8%), consumer or non-health professional (10.9%) and physician (1.5%). 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.