Pet Drug Reports

Florfenicol + Flunixin: adverse event reports that FDA received

Combination of 2 active ingredients

The Green Book lists no brand name for exactly these active ingredients.

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand.

Read this first. FDA says this about the data:

An API dataset query result cannot be used to estimate the risk associated with the product or compare one drug or device product with another. When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event. This dataset should not be the sole source of information for clinical decision-making or other assumptions about the safety or effectiveness of a product. The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine publishes these words. Source: Adverse Event Reports for Animal Drugs and Devices, read on . The data have the reports that FDA received through .

This page is not veterinary advice. For an animal that is ill, speak to a veterinarian.

Contacting a veterinarianHow to report to FDA

From May 2010 to May 2026, FDA received 434 adverse event reports that name a drug with florfenicol and flunixin as its active ingredients. Of the 434 reports, 297 (68.4%) are about cattle. 39 reports are about people who were exposed to the drug (9%).

In January to March 2026, FDA received 2 reports that name this drug. The signs that appear in the largest number of the 434 reports are "Death" and "Lack of efficacy (bacteria) - NOS". A report is not proof that a drug caused a sign.

Reports that name this drug fell by 83.3% in the 12 months to June 2026, compared with the 12 months before. Reports for all animal drugs fell by 4.6% in the same periods. The newest months can get more reports in a later update. Reports about cattle are 68.4% of the reports that name this drug, and 2.3% of all reports.

Search engines list a drug page with 500 reports or more in all years. The page also needs 30 reports or more in the 12 months to June 2026. This page is under one of these numbers. The site keeps the page and keeps it out of search engines.

Since the last update of the FDA data

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

January to March 2026 is the latest closed quarter in the data. In that quarter FDA received 2 reports that name florfenicol + flunixin: 0 dog, 0 cat, 0 horse, 2 other or not given.

All updatesFeed of updates (RSS)

Signs that the reports list

A sign is a coded term from the report. The words in brackets are a plain gloss of the term. The percentage is the share of the 434 reports that list the sign. One report can list more than one sign.

The sign that is in the largest number of the reports comes first.

  1. Death44%191 reports
  2. Lack of efficacy (bacteria) - NOS[the product did not have the expected effect: target not specified]23.7%103 reports
  3. Lack of efficacy - NOS[the product did not have the expected effect]21.4%93 reports
  4. PR-lung(s), lesion(s)[legacy FDA term: lesions found in the lungs]7.1%31 reports
  5. Containers, Damaged[a product quality report, not a sign in an animal]6%26 reports
  6. Appearance, Abnormal[a product quality report, not a sign in an animal]4.4%19 reports
  7. Accidental exposure[exposure that was not intended]4.1%18 reports
  8. Injection site pain[pain where the injection was given]4.1%18 reports
  9. PR-gi, lesion(s)[legacy FDA term: lesions found in the gi]3.7%16 reports
  10. PR-liver, lesion(s)[legacy FDA term: lesions found in the liver]3.2%14 reports
  11. PR-spleen, lesion(s)[legacy FDA term: lesions found in the spleen]3.2%14 reports
  12. Unclassifiable adverse event[event that fits no dictionary term]3.2%14 reports
Show the next 16 signs
  1. Respiratory signs2.8%12 reports
  2. Injection site swelling[swelling where the injection was given]2.5%11 reports
  3. Containers, Leaking[a product quality report, not a sign in an animal]2.3%10 reports
  4. Death by euthanasia[the animal was euthanized]2.1%9 reports
  5. Necropsy performed1.8%8 reports
  6. PR-kidney(s), lesion(s)[legacy FDA term: lesions found in the kidneys]1.8%8 reports
  7. PR-thymus, lesion(s)[legacy FDA term: lesions found in the thymus]1.8%8 reports
  8. Anaphylaxis[sudden severe allergic-type reaction]1.6%7 reports
  9. PR-stomach, lesion(s)[legacy FDA term: lesions found in the stomach]1.6%7 reports
  10. Recumbency[lying down and unable or unwilling to rise]1.6%7 reports
  11. Vocalisation[crying out or unusual noise]1.6%7 reports
  12. Ataxia[unsteady, uncoordinated movement]1.4%6 reports
  13. Defect Unknown/Not Specified[a product quality report, not a sign in an animal]1.4%6 reports
  14. Diarrhoea[diarrhea]1.4%6 reports
  15. Lateral recumbency[lying on the side, unable to rise]1.4%6 reports
  16. PR-lymph node(s), lesion(s)[legacy FDA term: lesions found in the lymph nodes]1.4%6 reports

The list shows 30 of 222 coded signs. A report is not proof that a drug caused a sign. Download all signs (CSV)

Reports by species

The share is of all 434 reports that name florfenicol + flunixin. The other reports give a different species or no species.

Reports for each month, Jul 2021 to Jun 2026

Dog0 reports

No chart: no month has 5 or more reports.

Cat0 reports

No chart: no month has 5 or more reports.

Horse0 reports

No chart: no month has 5 or more reports.

Other or not given143 reports. Largest count in one month: 9 (Jun 2024)

The month is the month in which FDA received the report. Each chart has its own scale. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

Reports by year

  • Dog
  • Cat
  • Horse
  • Other or not given
Reports that name florfenicol + flunixin, by the year in which FDA received them and by species
YearDogCatHorseOther or not givenAll species
202600033
20250001717
20240006262
20230003030
20220002424
20210001717
20200002626
20190001818
20180001717
20170001717
20160001616
20150002525
20140002525
20130003737
20120006161
20110002323
20100001616

2026 has the reports that FDA received through May 2026. Download the years (CSV)

What the reports record

Outcome at the time of the report

  • Recovered/Normal10.1%44
  • Recovered with Sequela[recovered, with a lasting effect]0.2%1
  • Ongoing19.1%83
  • Died56.5%245
  • Euthanized1.2%5
  • Outcome Unknown11.1%48

An outcome in a report is not proof that the drug caused it. The person who sends the report gives the outcome. Each share is of the 434 reports that name florfenicol + flunixin.

A report about more than one animal can have more than one outcome.

Kind of report

  • Safety issue48.4%210
  • Lack of expected effectiveness27.6%120
  • Both safety and lack of expected effectiveness4.4%19
  • Manufacturing or product defect19.6%85
  • Other0%0

212 reports say if the event was serious. 75.5% of them have the serious flag. The person who sends the report sets the flag.

Show age, weight, breed and route

Age of the animal

  • Under 1 year43.1%187
  • 1 to 3 years2.8%12
  • 4 to 7 years0.5%2
  • 8 to 11 years0%0
  • 12 years and over6.7%29
  • Age not given47%204

Weight of the animal

  • Under 5 kg (11 lb)0%0
  • 5 to 9.9 kg (11 to 22 lb)0.2%1
  • 10 to 24.9 kg (22 to 55 lb)1.4%6
  • 25 to 44.9 kg (55 to 99 lb)1.4%6
  • 45 kg and over (99 lb and over)48.2%209
  • Weight not given48.8%212

Breed, where the report gives one breed

A breed with many animals has many reports.

Route in the report

  • Subcutaneous56.5%245
  • Intramuscular2.1%9
  • Parenteral1.6%7
  • Topical0.9%4
  • Ophthalmic0.5%2
  • Other0.5%2

Each bar is on a scale of 0 to 100%.

Approved animal drugs with these active ingredients (FDA Green Book)

This section is reference data. It has no report count.

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand.

What the Green Book records give

Applications with an approval in force
1
Approved species
Cattle
Dose forms
Injectable Solution
Routes
Subcutaneous
Sale
RX (prescription)
Earliest approval date in the records

The species, dose forms and routes are the words of the Green Book records for all the applications together. One product can have fewer. The label of a product gives its approved use.

Applications in the Green Book of 2 Nov 2026, pioneer applications (NADA) first
Brand nameActive ingredientsSponsorApproved speciesApplication
Florfenicol and Flunixin MeglumineFlorfenicol, FlunixinCronus Pharma Specialities India Private Ltd.CattleANADA 200-796

Other pages with one of these ingredients

A report names a drug by its set of active ingredients. Each set has its own page. The list is in order of name.

Next in the A to Z list

All drugs by active ingredient. Brand names A to Z

FDA pages for this drug

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

Cite this page

Pet Drug Reports. Florfenicol + Flunixin: adverse event reports that FDA received. https://petdrugreports.com/drug/florfenicol-flunixin/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of . Reports received through .

Where the data come from

The counts come from the openFDA Animal and Veterinary adverse event files, export of 30 Oct 2026. The files have the reports that the FDA Center for Veterinary Medicine received through 26 Jun 2026. The files mask brand and manufacturer names. The site counts a drug by the active ingredients that each record gives, and gives no count to a brand, an application or a company. Ingredient names and the lists of approved products follow the FDA Green Book of 2 Nov 2026. The site does not use the application number that a record has.

The site does not publish report text, lot numbers or details of a reporter. FDA's record is the authority. See how the site counts reports, the data sources and the corrections page.

Questions about these reports

Which brand are these reports about?

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand. The Green Book lists no brand name for exactly these active ingredients.

Do the reports show that the drug caused the signs?

No. FDA states this about the data.

When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event.

The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine. Source: Adverse Event Reports for Animal Drugs and Devices

How many reports did FDA receive in the latest 12 months?

FDA received 7 reports in the 12 months to June 2026. It received 42 reports in the 12 months before. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

What kinds of report are in the count?

Of the 434 reports received from May 2010 to May 2026, 48.4% are about a safety issue only. 32% are about a lack of expected effectiveness, alone or with a safety issue. 19.6% are about a defect of the product or its package.