Find your pet's drug in FDA's adverse event reports

Type the brand name or the active ingredient. FDA counts reports by active ingredient, so a brand name opens the page of its ingredient.

Examples: Bravecto, Apoquel, Simparica, Librela, Rimadyl, gabapentin, trazodone

In the latest FDA data

FDA changed the counts for January to March 2026 in a later export.

The count for all animal drugs in January to March 2026 changed from 14,826 to 17,307.

101 drug pages have a different count.

1 drug page is new.

The site recorded this update on 11 Oct 2026. Open the update

The data have the reports that FDA received through 26 Jun 2026, from the openFDA export of 30 Oct 2026. 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.

A report is not proof that a drug caused a sign. What an adverse event report is, and is not

All updates. Feed of updates (RSS)

Reports for all animal drugs, by the quarter in which FDA received them
Species	Jan to Mar 2026	Oct to Dec 2025	Jan to Mar 2025
All species	17,307	18,072	16,457
Dog	11,984	12,499	11,305
Cat	3,030	3,140	2,800
Horse	222	228	157
Other or not given	2,071	2,205	2,195

If your animal is ill

Brand names A to Z

1,436 brand names from the FDA Green Book. Each name opens the page of its active ingredients.

0 to 9
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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.

All the lists

Drugs by active ingredient367 single ingredients and combinations, A to Z
Ingredients, all combinations85 ingredients that the reports name in more than one combination
Clinical signs1,149 coded terms, each with a plain gloss where one helps
Breeds213 breeds: dog, cat, cattle, horse, ferret, goat
MonthsReports by the month in which FDA received them, from 1987
GlossaryThe terms of the site, with the words of FDA
GuidesWhat a report is, what affects a count, why the counts have no brand names, the terms

Findings from all the reports

Reports that FDA received each year, 2014 to 2025FDA received 77,103 adverse event reports for animal drugs in 2025, the last full year in the data.
Reports by species, 1987 to June 2026Reports about dogs were 72.6% of the 1,378,761 reports that FDA received from January 1987 to June 2026.
Clinical signs in the most reports, 12 months to June 2026The sign "Vomiting" is in the largest number of the reports that FDA received in the 12 months to June 2026: 7,871 of 74,895 reports (10.5%).
Kinds of report by species, 1987 to June 2026Of the 1,378,761 reports, 64.5% are about a safety issue only.

All findings. A count of reports is not a measure of risk.

The edition of November 2026 keeps the counts of this month. Every monthly edition.

For sites and newsletters: embed a card of the counts of a drug, an ingredient or a species.

Reports for each month, by species

Dog249,455 reports. Largest count in one month: 5,543 (May 2024)

Cat53,285 reports. Largest count in one month: 1,386 (Jul 2024)

Horse3,887 reports. Largest count in one month: 109 (Apr 2026)

Other or not given42,126 reports. Largest count in one month: 907 (Oct 2024)

The month is the month in which FDA received the report. Each chart has its own scale. 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.

The data in figures

Reports in the data: 1,378,761, received from January 1987 to Jun 2026
Reports in the latest 12 months: 74,895, and 78,523 in the 12 months before
Reports about dogs: 72.6% of all reports
Reports about cats: 11% of all reports
Reports about lack of expected effectiveness: 23.3% of all reports, alone or with a safety issue

FDA says that commonly used products may have more reports because more animals get them. See what affects a count of reports and how the site counts reports.