Browse Pet Safety Reports

18,026 FDA adverse event reports for pets.

FDA Veterinary Adverse Event Database

Browse 18,026 adverse event reports collected by the FDA's Center for Veterinary Medicine. Each report includes the animal species, breed, drug or product involved, observed reactions, and outcome. Reports flagged as "serious" involve death, life-threatening conditions, or hospitalization. Use the filters to narrow results by species, outcome severity, or keyword. Note that a higher number of reports does not necessarily indicate a less safe product, widely prescribed drugs naturally accumulate more reports.

Pet Adverse Event Reports

Browse 18,026 FDA veterinary adverse event reports.

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Date Species Breed Drug Reaction Outcome
Jun 24, 2015 Cat Siamese Praziquantel; Emodepside Application site alopecia; Application site lesion; Skin lesion NOS Recovered/Normal
Jun 24, 2015 Cat Domestic Shorthair Unspecified Application site alopecia; Application site scab Outcome Unknown
Jun 23, 2015 Dog Dog (unknown) Afoxolaner Not eating; Pruritus; Erythema (for urticaria see Immune SOC); Alopecia Outcome Unknown
Jun 22, 2015 Dog Terrier - Yorkshire Afoxolaner Itching; Alopecia Recovered/Normal
Jun 22, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 22, 2015 Dog Retriever - Labrador Afoxolaner Alopecia NOS Outcome Unknown
Jun 22, 2015 Dog Retriever - Golden Afoxolaner Alopecia NOS Outcome Unknown
Jun 21, 2015 Dog Bichon Frise Oclacitinib Maleate Pruritus; Lack of efficacy - NOS; Alopecia NOS; INEFFECTIVE, LOSS OF EFFECT; ... Ongoing
Jun 21, 2015 Cat Bengal Selamectin Rash; Alopecia Ongoing
Jun 21, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site erythema; Application site alopecia Outcome Unknown
Jun 20, 2015 Dog Mastiff - Neapolitan Fluralaner Chew Tablets Alopecia general; Hair coat discolouration Recovered/Normal
Jun 20, 2015 Dog Shepherd Dog - German Genta/Momet/Clotrim Ear Oint Inappropriate urination; Diarrhoea; Polyuria; Hyperpigmentation; Rash; Skin s... Recovered/Normal
Jun 20, 2015 Dog Spitz - German Pomeranian Fluralaner Chew Tablets Alopecia local Ongoing
Jun 19, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia; Application site erythema; Application site skin s... Recovered/Normal
Jun 19, 2015 Dog Hound - Basset Imidacloprid; Moxidectin Application site alopecia; Application site erythema Outcome Unknown
Jun 19, 2015 Cat Domestic Shorthair Selamectin Application site hair loss; Alopecia; Lack of efficacy (ectoparasite) - flea Outcome Unknown
Jun 18, 2015 Cat Siamese Selamectin Application site alopecia; Application site irritation; Application site prur... Ongoing
Jun 18, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia; Application site ulcer; Application site scab; Inc... Outcome Unknown
Jun 18, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 18, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia Outcome Unknown
Jun 17, 2015 Dog Poodle - Standard, Retrieve... Imidacloprid; Moxidectin Skin scab; Alopecia NOS; Bacterial skin infection NOS; Allergic dermatitis Outcome Unknown
Jun 17, 2015 Cat Domestic Longhair Praziquantel; Emodepside Application site alopecia; Application site leukotrichia; Inappetence Recovered/Normal
Jun 17, 2015 Cat Cat (unknown) Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 17, 2015 Dog Retriever - Golden Afoxolaner Hot spot (pyotraumatic dermatitis); Crust; Flaking skin; Alopecia Outcome Unknown
Jun 17, 2015 Dog Dog (other) Afoxolaner 68 Mg Chewable Tablets Folliculitis; Alopecia Outcome Unknown
Jun 17, 2015 Dog Retriever - Chesapeake Bay Fluralaner Chew Tablets Emesis (multiple); Pruritus; Skin scab; Alopecia; Erythema (for urticaria see... Ongoing
Jun 16, 2015 Dog Spaniel - Springer English Afoxolaner Alopecia NOS Outcome Unknown
Jun 15, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Vomiting; Diarrhoea; Application site alopecia Outcome Unknown
Jun 15, 2015 Dog Retriever - Labrador Cyclosporine A Hair shedding; Alopecia Ongoing
Jun 15, 2015 Cat Domestic Shorthair Selamectin Application site alopecia Outcome Unknown
Jun 15, 2015 Dog Cattle Dog - Australian (bl... Afoxolaner Pruritus; Alopecia Outcome Unknown
Jun 15, 2015 Dog Shih Tzu Selamectin Alopecia local; Moist dermatitis Ongoing
Jun 15, 2015 Dog Pit Bull Fluralaner Chew Tablets Crust; Other abnormal test result NOS; Erythematous rash; Hypertrichosis; Let... Recovered with Sequela
Jun 14, 2015 Dog Spaniel - Springer English Imidacloprid; Moxidectin Alopecia general Outcome Unknown
Jun 14, 2015 Dog Spaniel - Springer English Imidacloprid; Moxidectin Alopecia general Outcome Unknown
Jun 13, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Application site pruritus; Renal failure; Anorexia... Ongoing
Jun 13, 2015 Dog Pit Bull Ivermectin 272Mcg, Pyrantel 227Mg Diarrhoea; Vomiting; Head shake - ear disorder; Panting; Generalised rash; Ge... Recovered/Normal
Jun 12, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 12, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 12, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 12, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 12, 2015 Dog Terrier - Boston Trilostane Scaly condition NOS; Alopecia local; Urinary tract infection; Blood and lymph... Euthanized
Jun 12, 2015 Dog Pointing Dog - Hungarian Sh... Afoxolaner Alopecia NOS Outcome Unknown
Jun 12, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia Outcome Unknown
Jun 10, 2015 Dog Dachshund (unspecified) Spinosad; Milbemycin Oxime Pyoderma; Lack of efficacy - NOS; Alopecia; Pododermatitis; Lack of efficacy ... Ongoing
Jun 10, 2015 Cat Cat (unknown) Selamectin Application site alopecia; Weight loss Outcome Unknown
Jun 10, 2015 Dog Corgi - Welsh Cardigan Afoxolaner 2.27% Chewable Tablet (68 Mg) Pruritus; Alopecia Ongoing
Jun 10, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Outcome Unknown
Jun 9, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Application site scab; Application site irritation... Ongoing
Jun 9, 2015 Dog Bulldog - French Oclacitinib Maleate Other abnormal test result NOS; Alopecia NOS; Skin disorders NOS; Drug schedu... Ongoing

Frequently Asked Questions

Contact your veterinarian immediately. If the reaction is severe, difficulty breathing, seizures, collapse, or severe swelling, seek emergency veterinary care right away. After your pet is stabilized, report the adverse event to the FDA through safetyreporting.hhs.gov or by calling 1-888-FDA-VETS (1-888-332-8387). Reporting helps the FDA identify safety issues that can lead to label changes or product recalls.

Dogs account for the majority of adverse event reports, followed by cats. This reflects both the larger pet population and wider range of medications for these species. Flea and tick products, pain medications (NSAIDs), and heartworm preventives are among the product categories with the highest report counts across all species.

Not necessarily. A drug used by millions of pets will have more reports in absolute numbers than a niche product, even if the actual rate of adverse events is lower. The FDA uses these reports as one of many tools to evaluate drug safety, looking for patterns and statistical signals rather than raw counts alone. Always consult your veterinarian before changing any medication.