Pet Drug Reports

Urticariain adverse event reports for animal drugs

Clinical sign, a VeDDRA term

In plain words: hives.

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 April 1987 to June 2026, FDA received 5,785 adverse event reports for animal drugs that list this sign. That is 0.4% of the 1,378,761 reports that FDA received from January 1987 to June 2026. In the 12 months to June 2026, FDA received 41 reports that list this sign.

Of the 5,785 reports, 83.9% 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 111 of 1,149 clinical signs with a page. Reports that list this sign rose by 46.4% 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 83.9% of the reports that list this sign, and 72.6% of all reports.

Search engines list a sign page with 3,000 reports or more in all years. The page also needs 300 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.

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 44 drug pages.

Show the 44 drug pages
Drug pages with 20 or more reports that list this sign, in order of name
Active ingredientsReports that list the sign
(S) - methoprene27
Afoxolaner82
Amoxicillin63
Butorphanol Tartrate45
Carprofen200
Cefovecin sodium86
Cefpodoxime proxetil40
Cyclosporine93
Deracoxib63
Desoxycorticosterone Pivalate27
Detomidine Hydrochloride74
Dexamethasone60
Dexmedetomidine hydrochloride40
Diphenhydramine130
Enrofloxacin36
Fenbendazole33
Firocoxib42
Flunixin Meglumine41
Fluralaner45
Imidacloprid + Moxidectin193
Insulin22
Isoflurane21
Ivermectin84
Ivermectin + Praziquantel35
Ivermectin + Praziquantel + Pyrantel Pamoate32
Ivermectin + Pyrantel Pamoate173
Ketamine Hydrochloride23
Lufenuron69
Lufenuron + Milbemycin Oxime131
Maropitant143
Melarsomine Dihydrochloride192
Meloxicam76
Milbemycin Oxime109
Milbemycin Oxime + Spinosad161
Moxidectin1,799
Nitenpyram36
Oclacitinib76
Prednisone53
Propofol26
Pyrantel Pamoate88
Selamectin567
Spinosad274
Sulfadimethoxine28
Triamcinolone Acetonide43

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 5,785 reports that list this sign. The sign is in 0.5% of all reports about the species dog. The sign is in 2.2% of all reports about the species horse.

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 Urticaria, by the year in which FDA received them
YearReports
202626
202533
202422
202330
202235
202150
202058
201990
2018150
2017185
2016170
2015145
2014260
2013300
2012370
2011459
2010383
2009321
2008300
2007236
2006172
2005150
2004316
2003328
2002473
2001223
2000148
199992
199866
199740
199655
199530
199418
19938
19925
19916
19909
19898
19888
19877

What these reports record

Outcome at the time of the report

  • Reports with this sign
  • All reports
  • Recovered/Normal16.1%930
  • Recovered with Sequela[recovered, with a lasting effect]0.6%37
  • Ongoing11.4%657
  • Died1.2%68
  • Euthanized0.3%15
  • Outcome Unknown6.2%361

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 5,785 reports that list this sign.

Age of the animal

  • Reports with this sign
  • All reports
  • Under 1 year13%752
  • 1 to 3 years38%2,197
  • 4 to 7 years23.8%1,378
  • 8 to 11 years10.8%623
  • 12 years and over7.3%422
  • Age not given7.1%413

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. Urticaria: adverse event reports for animal drugs. https://petdrugreports.com/reaction/urticaria/ 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: hives. 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 41 reports in the 12 months to June 2026. It received 28 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 1,893 reports that say if the event was serious, 40.7% 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