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 |
|---|---|---|---|---|---|
| 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.