Pet Drug Reports

Ingredients

Active ingredient · pooled across combinations

Triamcinolone: adverse event reports, pooled

16 ingredient sets in reports · 2 FDA-approved applications in the Green Book

481reports naming the ingredient, 1997–20260% of all reports · about 17 a year
77reports, 12 months to March 202642 in the 12 months before
51.2%classed serious, as reportedall reports: 38.6%
73%of reports concern dogscat 21%

Triamcinolone appears, alone or combined with other ingredients, in 481 reports in FDA's animal adverse event database (March 1997 to March 2026). The figures here pool all 16 ingredient sets that include it.

The Green Book lists 2 FDA-approved applications containing it. openFDA masks brand and manufacturer names in adverse event records, so the reports counted here cannot be attributed to a particular brand.

77 reports arrived in the 12 months to March 2026, up 83% from 42 in the 12 months before. FDA posts reports quarterly with a delay of three to six months, so the newest months are incomplete and usually grow in later releases. That is about 17 reports a year over its reporting history and 0% of all reports.

Pooled across every set, the terms listed most often are lethargy (15.4%), vomiting (13.7%) and lack of efficacy - NOS (13.1%). Many drugs combine several ingredients, and many reports list several drugs, so a term on this page may relate to any of them or to none.

Of reports that state seriousness, 51.2% were classed as serious (38.6% across the whole database); 10.6% record a death or euthanasia (6.4% overall). Ingredients used in older or sicker animals, or in anaesthesia and cancer care, carry higher shares for that reason alone.

Ingredient sets that include triamcinolone

Active ingredients recorded for the drugReportsShare of this page's reportsLatest 12 months
Triamcinolone28759.7%35
Enrofloxacin + Ketoconazole + Triamcinolone9720.2%17
Nystatin + Thiostrepton + Triamcinolone5511.4%17
Neomycin Sulfate + Nystatin + Thiostrepton + Triamcinolone142.9%5
Betamethasone Valerate + Gentamicin Sulfate + Triamcinolone71.5%0
Ketoconazole + Triamcinolone61.2%2
Nystatin + Triamcinolone51%0
Gentamicin + Ketoconazole + Triamcinolone30.6%0
Thiostrepton + Triamcinolone10.2%0
Enrofloxacin + Triamcinolone10.2%0
Clotrimazole + Triamcinolone10.2%0
Orbifloxacin + Triamcinolone10.2%0
Ketoconazole + Lidocaine + Marbofloxacin + Silver sulfadiazine + Triamcinolone10.2%0
Enrofloxacin + Nystatin + Triamcinolone10.2%0
Chloramphenicol + Triamcinolone10.2%0
Dexamethasone + Triamcinolone10.2%1

Ordered by report count. FDA states that these data "cannot be used to estimate the risk associated with the product or compare one drug or device product with another"; counts follow sales volume and years on the market. A report can list more than one set, so shares can add to more than 100%.

Signs listed in reports, pooled

share of triamcinolone reports listing the termall reports in the database

  1. Lethargy[unusually tired or inactive]15.4%74
  2. Vomiting13.7%66
  3. Lack of efficacy - NOS[the product did not have the expected effect]13.1%63
  4. Diarrhoea[diarrhea]8.7%42
  5. Emesis[vomiting]8.3%40
  6. Other abnormal test result NOS[abnormal laboratory result, type not specified]7.7%37
  7. Anorexia[not eating]5.8%28
  8. Death5.6%27
  9. Behavioural disorder NOS[behaviour change, type not specified]5%24
  10. Death by euthanasia[the animal was euthanized]4.8%23
  11. Ataxia[unsteady, uncoordinated movement]4%19
  12. Elevated alanine aminotransferase (ALT)[a liver enzyme above the normal range]3.7%18
  13. Seizure NOS[seizure, type not specified]3.7%18
  14. Skin lesion NOS[NOS: not otherwise specified]3.7%18
  15. Anaemia NOS[low red blood cell count]3.5%17
  16. Vocalisation[crying out or unusual noise]3.5%17
  17. Leucocytosis NOS[high white blood cell count]3.3%16
  18. Panting3.3%16
  19. Pruritus[itching]3.3%16
  20. Elevated blood urea nitrogen (BUN)[a kidney value above the normal range]3.1%15
  21. Polyuria[passing more urine than usual]3.1%15
  22. Fever2.9%14
  23. Polydipsia[drinking more than usual]2.9%14
  24. Emesis (multiple)[vomiting more than once]2.5%12

Pooled across every ingredient set and every report that names the ingredient. One report can list several terms and several drugs; a term here may relate to any of them or to none.

Monthly reports by species, five years

Dog118 · peak 10
Apr 2021: 2May 2021: 2Jul 2021: 1Aug 2021: 4Sep 2021: 1Oct 2021: 1Nov 2021: 1Dec 2021: 2Jan 2022: 1Mar 2022: 2Apr 2022: 1May 2022: 1Jul 2022: 1Aug 2022: 2Oct 2022: 1Feb 2023: 1Mar 2023: 1Apr 2023: 1May 2023: 1Jul 2023: 1Aug 2023: 2Oct 2023: 2Dec 2023: 1Jan 2024: 4Feb 2024: 1Mar 2024: 1May 2024: 2Jun 2024: 2Jul 2024: 2Aug 2024: 3Sep 2024: 3Oct 2024: 3Nov 2024: 2Dec 2024: 1Jan 2025: 1Feb 2025: 3Mar 2025: 6Apr 2025: 3May 2025: 6Jun 2025: 1Jul 2025: 5Aug 2025: 10Sep 2025: 5Oct 2025: 5Nov 2025: 3Dec 2025: 6Jan 2026: 6Mar 2026: 12022202320242025
Cat44 · peak 6
Dec 2021: 1Jun 2022: 1Oct 2022: 1Dec 2022: 1Apr 2023: 1May 2023: 2Jun 2023: 2Jul 2023: 2Nov 2023: 2Dec 2023: 1May 2024: 3Jun 2024: 1Jul 2024: 1Oct 2024: 1Dec 2024: 2Feb 2025: 2Mar 2025: 1Apr 2025: 2May 2025: 6Jun 2025: 2Aug 2025: 3Sep 2025: 1Nov 2025: 1Dec 2025: 1Jan 2026: 1Feb 2026: 22022202320242025
Horse12 · peak 2
Aug 2021: 1Jun 2023: 2Jul 2024: 1Dec 2024: 1May 2025: 1Jun 2025: 1Jul 2025: 1Aug 2025: 1Dec 2025: 1Feb 2026: 1Mar 2026: 12022202320242025
Other4 · peak 1
Jun 2023: 1Nov 2023: 1Mar 2024: 1Nov 2024: 12022202320242025

By month of receipt; each panel has its own scale. The newest months are incomplete because FDA posts reports with a delay of three to six months.

039781997: 119972011: 22012: 2720122013: 492014: 3520142015: 362016: 4320162017: 282018: 1420182019: 272020: 3720202021: 202022: 1220222023: 242024: 3620242025: 782026: 122026

Outcomes, report types and ages

Outcome recorded in the report

Recovered/Normal26.2%126
Recovered with Sequela2.7%13
Ongoing28.1%135
Died5.6%27
Euthanized5%24
Outcome Unknown30.4%146

What kind of report it was

Safety issue84.4%406
Lack of expected effectiveness7.3%35
Both safety and lack of expected effectiveness6%29
Manufacturing or product defect2.3%11
Other0%0

Species

Dog73%351
Cat21%101
Horse5%24
Human exposure0.4%2
Camel0.2%1
Ferret0.2%1

Age of the animal

Under 1 year3.7%18
1 to 3 years17%82
4 to 7 years28.5%137
8 to 11 years28.5%137
12 years and over17.5%84
Age not given4.8%23

Coloured bar: reports naming triamcinolone. Grey bar: all 1,357,245 reports. Outcomes are as stated by the reporter; FDA has not necessarily determined whether any product played a part.

In context

MeasureTriamcinoloneAll reports
Reports4811,357,245
Latest 12 months against the 12 before+83%-5%
Classed serious, of reports stating it51.2%38.6%
Death or euthanasia recorded, per 1,000 reports10663.8
Filed as lack of expected effectiveness (wholly or partly)13.3%23%

Shares of reports, not of animals treated: how many animals receive the ingredient is not public. Ingredients used in anaesthesia, cancer care or in old animals carry more serious outcomes in their reports for that reason alone.

FDA-approved products containing triamcinolone (Green Book)

Reference information, not report statistics. openFDA masks brand and manufacturer names in adverse event records, so the reports counted here cannot be attributed to a particular brand. The list below is the FDA Green Book as of 1 Oct 2026; nothing on this page says which of these products, if any, a report concerned.

Trade nameActive ingredientsSponsorApproved forApplication
Aristovet Triamcinolone Tabletsapproval voluntarily withdrawnTriamcinoloneBayer HealthCare LLC, Animal Health Division—NADA 012-103
Aristovet Parenteralapproval voluntarily withdrawnProcaine Hydrochloride, TriamcinoloneBayer HealthCare LLC, Animal Health Division—NADA 012-392

Species are the major species the Green Book search lists for the application ("—" where it lists another species or none). Approval dates are not part of the Green Book listing files and are not shown. Pioneer applications (NADA) come first, then generics (ANADA).

Questions about triamcinolone reports

How many FDA adverse event reports mention triamcinolone?

481 reports through March 2026, 77 of them in the latest 12 months, counting triamcinolone alone and in combinations.

Which brands do these reports concern?

That cannot be known from the public data. openFDA masks brand and manufacturer names in adverse event records, so the reports counted here cannot be attributed to a particular brand. The Green Book reference list on this page names approved products containing triamcinolone without any counts.

In which combinations is triamcinolone reported?

Triamcinolone (59.7% of these reports), Enrofloxacin + Ketoconazole + Triamcinolone (20.2% of these reports), Nystatin + Thiostrepton + Triamcinolone (11.4% of these reports), Neomycin Sulfate + Nystatin + Thiostrepton + Triamcinolone (2.9% of these reports) and Betamethasone Valerate + Gentamicin Sulfate + Triamcinolone (1.5% of these reports).

What reactions are reported for triamcinolone?

lethargy (15.4%), vomiting (13.7%), lack of efficacy - NOS (13.1%), diarrhoea (8.7%) and emesis (8.3%). Shares are of reports naming the ingredient; one report can list several terms.

Which animals are these reports about?

dog (73%), cat (21%) and horse (5%).

Does a high count mean triamcinolone is a problem ingredient?

A count cannot show that. FDA states that "there is no certainty that the reported drug or device caused the adverse event" and that the event "may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources." Widely used ingredients collect more reports because more animals receive them.

How do I report a problem?

Call the drug company using the number on the label, or send Form FDA 1932a to FDA. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Animal & Veterinary adverse event bulk files released 28 Sep 2026, which hold reports FDA's Center for Veterinary Medicine received through 31 Mar 2026. openFDA masks brand and manufacturer names in these files, so drugs are counted by the active ingredients each record discloses and no figure is attributed to a brand, application or company. Ingredient names, and the separate reference lists of approved products, follow the FDA Green Book as of 1 Oct 2026. Ingredient names follow the Green Book; salts and forms are kept as FDA lists them. Drug entries are matched by the active ingredients their unmasked ingredient field discloses. No report text, lot numbers or reporter details are published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.