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
Jan 1, 2016 Cat Domestic Shorthair Selamectin Application site alopecia; Lethargy (see also Central nervous system depressi... Euthanized
Jan 1, 2016 Cat Domestic Shorthair Selamectin Lymphosarcoma; Pruritus; Alopecia NOS; Demodicosis; Abnormal cytology Ongoing
Dec 31, 2015 Dog Terrier - Bull - American Pit Oclacitinib Maleate Erythema (for urticaria see Immune SOC); Alopecia NOS; Lethargy (see also Cen... Ongoing
Dec 30, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site pruritus; Application site erythema; Application site bleedi... Recovered/Normal
Dec 28, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia; Application site lesion Recovered/Normal
Dec 26, 2015 Dog Terrier - Boston Oclacitinib Maleate Facial swelling (see also 'Skin'); Alopecia NOS Ongoing
Dec 22, 2015 Cat Domestic Longhair Praziquantel; Emodepside Application site pruritus; Application site irritation; Application site eryt... Outcome Unknown
Dec 22, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia; Application site irritation; Application site eryt... Recovered/Normal
Dec 22, 2015 Dog Pit Bull, Bulldog Imidacloprid; Moxidectin Vomiting; Pruritus; Erythema (for urticaria see Immune SOC); Alopecia; Overdose Outcome Unknown
Dec 21, 2015 Dog Crossbred Canine/dog, Terri... Estriol Tablets Alopecia; Swollen vulva Outcome Unknown
Dec 20, 2015 Dog Retriever - Golden Oclacitinib Maleate Skin disorders NOS; Hyperkeratosis; Haemorrhage NOS; Alopecia NOS; Licking; P... Ongoing
Dec 20, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site lesion; Application site erythema; Application site alopecia... Outcome Unknown
Dec 16, 2015 Dog Beagle Afoxolaner 68 Mg Chewable Tablets Scratching; Erythema (for urticaria see Immune SOC); Alopecia Outcome Unknown
Dec 16, 2015 Dog Shepherd Dog - German Oclacitinib Maleate Limping; Oedema NOS (see other SOCs for specific oedemas); Moist dermatitis; ... Ongoing
Dec 15, 2015 Dog Spitz - German Pomeranian Maropitant Citrate Alopecia NOS Outcome Unknown
Dec 14, 2015 Dog Shepherd Dog - Australian Imidacloprid; Moxidectin Dry skin; Hair shedding; Application site rash; Application site alopecia; Ap... Outcome Unknown
Dec 13, 2015 Dog Shepherd Dog - German Fluralaner Chew Tablets Alopecia local; Hot spot (pyotraumatic dermatitis); Ear infection NOS Outcome Unknown
Dec 12, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Abnormal posture NOS; Application site alopecia; Application site burn; Appli... Outcome Unknown
Dec 11, 2015 Dog Collie - Border Afoxolaner 136 Mg Chewable Tablets Rash; Pyrexia; Swollen lymph node; Epidermal collarette; Papule; Skin inflamm... Outcome Unknown
Dec 11, 2015 Dog Dachshund - Miniature Carprofen Lethargy (see also Central nervous system depression in 'Neurological'); Bull... Recovered/Normal
Dec 11, 2015 Dog Dog (unknown) Imidacloprid; Moxidectin Alopecia general Outcome Unknown
Dec 11, 2015 Dog Great Pyrenees, Pointer (un... Spinosad; Milbemycin Oxime Alopecia local; Dermatosis NOS Outcome Unknown
Dec 9, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Application site inflammation Ongoing
Dec 9, 2015 Cat Cat (other) Selamectin Weight loss; Alopecia NOS Outcome Unknown
Dec 8, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Recovered/Normal
Dec 8, 2015 Cat Domestic Shorthair Selamectin Implant site alopecia; Application site irritation Ongoing
Dec 8, 2015 Cat Siamese Imidacloprid; Moxidectin Application site skin change NOS; Application site pruritus; Application site... Outcome Unknown
Dec 6, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia; Application site inflammation; Application site er... Recovered/Normal
Dec 6, 2015 Dog Beagle Fluralaner Chew Tablets Erythema (for urticaria see Immune SOC); Facial swelling (see also 'Skin'); A... Ongoing
Dec 6, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Application site ulcer; Application site scab Ongoing
Dec 5, 2015 Dog Pekingese Afoxolaner Generalised itching; Crust; Skin scab; Erythema (for urticaria see Immune SOC... Outcome Unknown
Dec 4, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Lethargy (see also Central nervous system depressi... Ongoing
Dec 4, 2015 Cat Domestic Shorthair Selamectin Alopecia NOS Outcome Unknown
Dec 3, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia Recovered/Normal
Dec 2, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site alopecia Outcome Unknown
Dec 1, 2015 Cat Russian Imidacloprid; Moxidectin Application site alopecia Outcome Unknown
Dec 1, 2015 Cat Russian Imidacloprid; Moxidectin Application site alopecia Outcome Unknown
Dec 1, 2015 Dog Pug Oclacitinib Maleate Alopecia NOS; Skin disorders NOS Outcome Unknown
Dec 1, 2015 Dog Terrier - Bull - Staffordshire Oclacitinib Maleate Alopecia local; Skin disorders NOS Recovered/Normal
Dec 1, 2015 Dog Pug, Dog (unknown) Oclacitinib Maleate Alopecia Ongoing
Nov 29, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Application site pruritus; Lethargy (see also Central nervous system depressi... Outcome Unknown
Nov 28, 2015 Cat Domestic Shorthair Imidacloprid; Moxidectin Agitation; Application site alopecia; Application site skin change NOS; Appli... Recovered/Normal
Nov 28, 2015 Cat Domestic Shorthair Praziquantel; Emodepside Application site alopecia; Application site erythema Outcome Unknown
Nov 27, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Alopecia NOS; Application site scab; Skin scab Ongoing
Nov 26, 2015 Cat Domestic Longhair Douxo Seborrhea Ps Spot On Application site alopecia Recovered/Normal
Nov 25, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Application site scab Outcome Unknown
Nov 25, 2015 Cat Domestic Shorthair Selamectin Application site alopecia; Application site scab Ongoing
Nov 25, 2015 Cat Domestic Mediumhair Praziquantel; Emodepside Application site pruritus; Application site alopecia Outcome Unknown
Nov 25, 2015 Dog Retriever - Labrador Ivermectin; Pyrantel As Pamoate Salt Scratching; Alopecia local Recovered/Normal
Nov 24, 2015 Dog Collie - Border Carprofen Injection site alopecia; Injection site scab; Injection site bruising; Inject... 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.