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.
| 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.