Pet Drug Reports

Tablets, Abnormal: in adverse event reports for animal drugs

Clinical sign, a VeDDRA term

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

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 November 1993 to June 2026, FDA received 19,982 adverse event reports for animal drugs that list this sign. That is 1.5% of the 1,378,761 reports that FDA received from January 1987 to June 2026. In the 12 months to June 2026, FDA received 1,183 reports that list this sign.

Of the 19,982 reports, 3.4% are about dogs. A report can list more than one sign and more than one drug. A report is not proof that a drug caused a sign.

By number of reports in all years, this sign is number 26 of 1,149 clinical signs with a page. Reports that list this sign fell by 21.4% 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 dogs are 3.4% of the reports that list this sign, and 72.6% of all reports.

Drug pages with reports that list this sign

The table has every drug page with 20 or more reports that list this sign, in order of name. No count decides which drug is in the table. The table has 49 drug pages.

Show the 49 drug pages
Drug pages with 20 or more reports that list this sign, in order of name
Active ingredientsReports that list the sign
Afoxolaner1,729
Afoxolaner + Moxidectin + Pyrantel Pamoate705
Amoxicillin135
Amoxicillin + Clavulanate Potassium25
Amoxicillin Trihydrate + Clavulanate Potassium42
Butorphanol Tartrate157
Carprofen1,282
Cefpodoxime proxetil47
Cephalexin66
Clomipramine Hydrochloride450
Cyclosporine158
Deracoxib724
Enalapril Maleate41
Enrofloxacin84
Febantel + Praziquantel + Pyrantel Pamoate97
Firocoxib255
Fluoxetine hydrochloride75
Fluralaner679
Furosemide82
Grapiprant375
Imidacloprid22
Ivermectin320
Ivermectin + Praziquantel + Pyrantel Pamoate105
Ivermectin + Pyrantel Pamoate7,765
Levothyroxine sodium21
Lotilaner61
Lufenuron + Milbemycin Oxime182
Lufenuron + Milbemycin Oxime + Praziquantel95
Lufenuron + Praziquantel29
Maropitant126
Milbemycin Oxime420
Milbemycin Oxime + Praziquantel243
Milbemycin Oxime + Spinosad318
Nitenpyram100
Oclacitinib702
Oxibendazole27
Pergolide mesylate24
Pimobendan395
Potassium bromide86
Praziquantel218
Progesterone25
Pyrantel Pamoate + Sarolaner287
Robenacoxib24
Sarolaner64
Selegiline Hydrochloride196
Spinosad366
Sulfadimethoxine27
Tepoxalin27
Toceranib Phosphate37

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. A report can name more than one drug.

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.

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

Ingredients, all combinations

The list has every active ingredient with 20 or more reports that list this sign, in order of name. It has 44 ingredients.

Show the 44 ingredients

Reports by species

The share is of the 19,982 reports that list this sign. The sign is in 0.1% of all reports about the species dog. The sign is in 0% of all reports about the species cat.

Reports by month and by year

Reports for each month, Jul 2021 to Jun 2026. The month is the month in which FDA received the report.

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 that list Tablets, Abnormal, by the year in which FDA received them
YearReports
2026564
20251,367
20241,453
20231,032
2022863
2021955
20201,058
20191,205
2018583
2017796
2016512
20151,530
20141,061
2013822
2012825
2011558
2010742
2009625
2008529
2007533
2006556
2005444
2004559
2003228
200278
2001145
2000177
1999135
199839
19973
19963
19932

What these reports record

Outcome at the time of the report

  • Reports with this sign
  • All reports
  • Recovered/Normal1.2%242, All reports: 20.7%
  • Recovered with Sequela[recovered, with a lasting effect]0.1%10, All reports: 2.3%
  • Ongoing0.4%73, All reports: 17.4%
  • Diedunder 0.1%9, All reports: 4.9%
  • Euthanizedunder 0.1%4, All reports: 1.5%
  • Outcome Unknown1.2%235, All reports: 22.7%

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 19,982 reports that list this sign.

Age of the animal

  • Reports with this sign
  • All reports
  • Under 1 year0.2%36, All reports: 9.5%
  • 1 to 3 years0.8%159, All reports: 23.9%
  • 4 to 7 years0.9%174, All reports: 20.2%
  • 8 to 11 years0.7%142, All reports: 15.4%
  • 12 years and over0.5%106, All reports: 10.7%
  • Age not given96.9%19,365, All reports: 20.3%

The outcome is for the full report, not for this sign only.

Next in the A to Z list of signs

All clinical signs

Cite this page

Pet Drug Reports. Tablets, Abnormal: adverse event reports for animal drugs. https://petdrugreports.com/reaction/tablets-abnormal/ 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 counts the different spellings of one VeDDRA term together.

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 this sign

What does this term mean in a report?

In plain words: a product quality report, not a sign in an animal. It is a term from VeDDRA, the list of terms that FDA and drug companies use to code a report. The person who coded the report selected the term.

How does the count of the latest 12 months compare with the 12 months before?

FDA received 1,183 reports in the 12 months to June 2026. It received 1,506 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.

How many of these reports have a serious flag?

Of the 560 reports that say if the event was serious, 17.9% have the serious flag. The person who sends a report sets the flag.

Does a drug in the table cause this sign?

The reports do not show that. A report can name more than one drug. 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