Pet Drug Reports

Overdose: in adverse event reports for animal drugs

Clinical sign, a VeDDRA term

In plain words: more than the labelled amount was given.

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 March 1997 to December 2025, FDA received 14,293 adverse event reports for animal drugs that list this sign. That is 1% of the 1,378,761 reports that FDA received from January 1987 to June 2026. In the 12 months to June 2026, FDA received 749 reports that list this sign.

Of the 14,293 reports, 87.9% 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 41 of 1,149 clinical signs with a page. Reports that list this sign fell by 43.1% 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 87.9% 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 96 drug pages.

Show the 96 drug pages
Drug pages with 20 or more reports that list this sign, in order of name
Active ingredientsReports that list the sign
(S) - methoprene31
Afoxolaner581
Afoxolaner + Moxidectin + Pyrantel Pamoate22
Amoxicillin31
Amoxicillin + Clavulanate Potassium50
Amoxicillin Trihydrate + Clavulanate Potassium57
Apomorphine29
Atipamezole Hydrochloride46
Bedinvetmab252
Buprenorphine58
Butorphanol Tartrate61
Capromorelin47
Carprofen443
Cefovecin sodium100
Cefpodoxime proxetil40
Cephalexin218
Clomipramine Hydrochloride30
Cyclosporine79
Deracoxib91
Dexamethasone24
Dexmedetomidine76
Dexmedetomidine hydrochloride132
Diphenhydramine53
Doxycycline45
Emodepside + Praziquantel83
Enalapril Maleate32
Enrofloxacin84
Epsiprantel23
Famotidine50
Febantel + Praziquantel + Pyrantel Pamoate265
Fenbendazole43
Firocoxib132
Fluoxetine hydrochloride40
Fluralaner985
Frunevetmab36
Furosemide38
Gabapentin162
Grapiprant99
Hydrogen Peroxide52
Ilunocitinib22
Imidacloprid161
Imidacloprid + Moxidectin366
Insulin77
Isoflurane35
Ivermectin177
Ivermectin + Praziquantel + Pyrantel Pamoate185
Ivermectin + Pyrantel Pamoate1,648
Ketamine Hydrochloride36
Ketoconazole23
Levothyroxine sodium186
Lotilaner122
Lufenuron + Milbemycin Oxime356
Lufenuron + Milbemycin Oxime + Praziquantel116
Lufenuron + Praziquantel32
Maropitant230
Melarsomine Dihydrochloride117
Meloxicam84
Methylprednisolone Acetate23
Metronidazole63
Midazolam22
Milbemycin Oxime132
Milbemycin Oxime + Praziquantel268
Milbemycin Oxime + Spinosad2,061
Monensin36
Moxidectin378
Moxidectin + Pyrantel Pamoate + Sarolaner31
Nitenpyram441
Oclacitinib865
Omeprazole101
Ondansetron24
Pentobarbital39
Pentobarbital Sodium + Phenytoin Sodium53
Phenobarbital31
Pimobendan160
Polysulfated Glycosaminoglycan25
Praziquantel103
Praziquantel + Pyrantel Pamoate138
Prednisolone38
Prednisolone + Trimeprazine Tartrate22
Prednisone97
Propofol47
Pyrantel Pamoate103
Pyrantel Pamoate + Sarolaner361
Robenacoxib20
Sarolaner333
Sarolaner + Selamectin98
Selamectin253
Selegiline Hydrochloride20
Spinosad837
Sucralfate35
Sulfadimethoxine20
Tigilanol tiglate59
Tramadol45
Trazodone24
Trilostane76
Velagliflozin48

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 86 ingredients.

Show the 86 ingredients

Reports by species

The share is of the 14,293 reports that list this sign. The sign is in 1.3% of all reports about the species dog. The sign is in 0.9% 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 Overdose, by the year in which FDA received them
YearReports
20251,505
2024895
2023869
20221,016
2021698
2020860
20191,036
20181,285
20171,811
20161,597
20151,180
2014626
2013397
2012362
201187
20102
20097
20086
20075
200613
20055
20043
200314
20025
20014
19991
19974

What these reports record

Outcome at the time of the report

  • Reports with this sign
  • All reports
  • Recovered/Normal26.6%3,805, All reports: 20.7%
  • Recovered with Sequela[recovered, with a lasting effect]4%572, All reports: 2.3%
  • Ongoing28%4,002, All reports: 17.4%
  • Died2%285, All reports: 4.9%
  • Euthanized2.3%325, All reports: 1.5%
  • Outcome Unknown36.9%5,270, 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 14,293 reports that list this sign.

Age of the animal

  • Reports with this sign
  • All reports
  • Under 1 year15.2%2,166, All reports: 9.5%
  • 1 to 3 years26.2%3,738, All reports: 23.9%
  • 4 to 7 years21.9%3,134, All reports: 20.2%
  • 8 to 11 years18.1%2,583, All reports: 15.4%
  • 12 years and over12.4%1,766, All reports: 10.7%
  • Age not given6.3%906, 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. Overdose: adverse event reports for animal drugs. https://petdrugreports.com/reaction/overdose/ 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: more than the labelled amount was given. 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 749 reports in the 12 months to June 2026. It received 1,317 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 13,969 reports that say if the event was serious, 34.9% 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