Real side-effect reports for pet medicines, from the FDA

Search 1,161,519 reports that owners and vets sent to the U.S. Food and Drug Administration about problems after pet medicines: flea and tick treatments, heartworm preventives, pain relievers, vaccines and more. See what was reported, how soon it started and how the animals did.

1,161,519Reports
994,418Dog reports
149,564Cat reports
643Medicines covered

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Dogs994,418 reports · 417 medicinesCats149,564 reports · 179 medicinesHorses17,537 reports · 47 medicines

Most reported medicines for dogs

Ivermectin + Pyrantel (Heartgard Plus)147,644 dog reportsMilbemycin Oxime + Spinosad (Trifexis)129,736 dog reportsFluralaner (Bravecto)68,765 dog reportsSpinosad (Comfortis)57,095 dog reportsAfoxolaner (NexGard)57,082 dog reportsPyrantel + Sarolaner (Simparica Trio)53,360 dog reportsMoxidectin (ProHeart 6)50,598 dog reportsCarprofen (Rimadyl)47,320 dog reportsMilbemycin Oxime + Praziquantel (Interceptor Plus)31,526 dog reportsMilbemycin Oxime (Interceptor)29,766 dog reportsSelamectin (Revolution)29,390 dog reportsOclacitinib (Apoquel)28,968 dog reports

All dog medicines ›

Most reported medicines for cats

Selamectin (Revolution)21,959 cat reportsSpinosad (Comfortis)11,584 cat reportsFluralaner (Bravecto)10,635 cat reportsNitenpyram (Capstar)8,744 cat reportsCefovecin (Convenia)8,685 cat reportsSarolaner + Selamectin (Revolution Plus)8,227 cat reportsImidacloprid + Moxidectin (Advantage Multi)8,157 cat reportsFrunevetmab (Solensia)8,035 cat reports

All cat medicines ›