Pet Drug Reports

Reported signs

Reported sign · VeDDRA term

Appearance, Abnormal: reports listing this term

In plain language: a product quality report, not a sign in an animal

4,723reports listing the term, 2002–20260.4% of all reports
375reports, 12 months to March 2026720 in the 12 months before
39.3%classed serious, as reportedall reports: 38.6%
4.8%of these reports concern dogscat 1.7%

"Appearance, Abnormal" (a product quality report, not a sign in an animal) is a coded term listed in 4,723 adverse event reports received by FDA, 0.4% of the database. Terms come from VeDDRA, the veterinary dictionary that FDA and drug companies use to code what a reporter describes.

375 reports listed it in the 12 months to March 2026, down 48% from 720 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.

By active ingredient, the drugs named most often in those reports are ivermectin + pyrantel pamoate, fluralaner and afoxolaner. That order mostly follows how many reports each has overall; the table gives the term's share within each drug's own reports as well.

4.8% of the reports concern dogs, 1.7% of the reports concern cats and 0.2% of the reports concern cattle. Of reports listing this term that state seriousness, 39.3% were classed as serious; 0.3% record a death or euthanasia among the outcomes.

Drugs named most often in these reports, by active ingredient

Active ingredients recorded for the drugReports listing the termShare of that drug's own reports
Ivermectin + Pyrantel Pamoate1,0160.6%
Fluralaner3120.4%
Afoxolaner2950.5%
Insulin2952.2%
Mirtazapine2679.4%
Carprofen1420.3%
Meloxicam1220.7%
Selamectin950.2%
Amprolium8621.8%
Pimobendan851.3%
Cyclosporine800.4%
Furosemide712.9%
Ivermectin + Praziquantel + Pyrantel Pamoate650.7%
Moxidectin630.1%
Gentamicin Sulfate + Hydrocortisone aceponate + Miconazole Nitrate563%
Ivermectin500.2%
Lufenuron + Milbemycin Oxime + Praziquantel490.7%
Flunixin Meglumine412.8%
Lufenuron + Milbemycin Oxime390.1%
Orbifloxacin362.4%
Propofol360.8%
Pyrantel Pamoate + Sarolaner340.1%
Butorphanol Tartrate330.4%
Cefovecin sodium330.2%
Maropitant320.2%

Ordered by number of reports, which mostly tracks how many reports a drug has overall. Across the whole database the term appears in 0.4% of reports. A drug's presence in a report means the animal received it, not that it produced the sign; FDA states that these data cannot be used to compare one product with another. openFDA masks brand and manufacturer names in adverse event records, so the reports counted here cannot be attributed to a particular brand.

Single ingredients, pooled across combinations

Active ingredientReports listing the termShare of the ingredient's own reports
Pyrantel Pamoate1,1540.5%
Ivermectin1,1440.6%
Fluralaner3300.4%
Afoxolaner3230.5%
Insulin2952.2%
Mirtazapine2679.4%
Praziquantel1770.2%
Carprofen1420.3%
Milbemycin Oxime1340.1%
Meloxicam1220.7%
Moxidectin1220.1%
Selamectin1180.2%
Lufenuron1030.3%
Amprolium8621.8%
Pimobendan851.3%
Cyclosporine800.4%
Sarolaner730.1%
Furosemide712.9%
Miconazole Nitrate582.4%
Gentamicin Sulfate560.9%
Hydrocortisone aceponate563%
Clavulanate Potassium470.6%
Flunixin Meglumine412.8%
Orbifloxacin361.8%
Propofol360.8%

Species split

Dog4.8%229
Cat1.7%82
Cattle0.2%10
Human exposure0.2%8
Horse0.1%7
Goat0%1

Coloured bar: share of reports listing this term. Grey bar: the species' share of all reports. The term appears in 0% of all dog reports; The term appears in 0.1% of all cat reports.

Trend

057114Apr 2021: 38May 2021: 36Jun 2021: 40Jul 2021: 39Aug 2021: 43Sep 2021: 44Oct 2021: 40Nov 2021: 30Dec 2021: 22Jan 2022: 262022Feb 2022: 35Mar 2022: 51Apr 2022: 48May 2022: 47Jun 2022: 46Jul 2022: 30Aug 2022: 54Sep 2022: 45Oct 2022: 31Nov 2022: 61Dec 2022: 27Jan 2023: 322023Feb 2023: 30Mar 2023: 34Apr 2023: 37May 2023: 56Jun 2023: 38Jul 2023: 44Aug 2023: 37Sep 2023: 40Oct 2023: 41Nov 2023: 43Dec 2023: 40Jan 2024: 392024Feb 2024: 40Mar 2024: 51Apr 2024: 68May 2024: 56Jun 2024: 61Jul 2024: 64Aug 2024: 55Sep 2024: 45Oct 2024: 84Nov 2024: 114Dec 2024: 38Jan 2025: 492025Feb 2025: 44Mar 2025: 42Apr 2025: 42May 2025: 42Jun 2025: 37Jul 2025: 32Aug 2025: 28Sep 2025: 26Oct 2025: 31Nov 2025: 22Dec 2025: 27Jan 2026: 232026Feb 2026: 51Mar 2026: 14

Reports by month FDA received them, five years to March 2026. The newest months are incomplete because FDA posts reports with a delay of three to six months.

03587152002: 120022008: 32009: 1720092010: 12012: 720122013: 62014: 1520142015: 1142016: 31620162017: 4192018: 39420182019: 3982020: 39020202021: 4442022: 50120222023: 4722024: 71520242025: 4222026: 882026

Outcomes and ages in these reports

Outcome recorded in the report

Recovered/Normal2.4%114
Recovered with Sequela0.2%9
Ongoing2%93
Died0.2%9
Euthanized0.1%6
Outcome Unknown2.4%111

Age of the animal

Under 1 year0.3%14
1 to 3 years0.7%31
4 to 7 years1.3%63
8 to 11 years2%93
12 years and over1.7%78
Age not given94.1%4,444
MeasureReports listing this termAll reports
Reports4,7231,357,245
Classed serious, of reports stating it39.3%38.6%
Death or euthanasia recorded, per 1,000 reports3.263.8

Grey bars and the right-hand column are the whole database. Outcomes are as stated by the reporter and describe the report as a whole, not this term alone.

Questions about "Appearance, Abnormal"

What does "Appearance, Abnormal" mean in an adverse event report?

In plain language: a product quality report, not a sign in an animal. It is a VeDDRA dictionary term picked to code what the reporter described. The report's free-text description is not published by FDA and is not shown here.

How many reports list appearance, Abnormal?

4,723 reports through March 2026 (0.4% of all reports), 375 of them in the latest 12 months.

Which drugs are named most often alongside this term?

By active ingredient: ivermectin + pyrantel pamoate (1,016), fluralaner (312), afoxolaner (295), insulin (295) and mirtazapine (267). Drugs with many reports overall lead almost every term's list. Brands cannot be identified: openFDA masks them.

Which species are involved?

dog (4.8%), cat (1.7%), cattle (0.2%) and human exposure (0.2%).

Does a drug appearing here mean it produced this sign?

No such conclusion can be drawn. 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."

My animal shows this sign. What now?

This site cannot assess an animal. A veterinarian can; for an emergency, contact a veterinary emergency clinic. See the guide on when to call a vet.

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. Spelling variants of the same VeDDRA term (for example with and without a cross-reference note) are pooled. 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.