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 18, 2012 | Cat | Ragdoll | Selamectin | Application site alopecia | Outcome Unknown |
| Jun 17, 2012 | Dog | Bichon Frise | Milbemycin Oxime; Lufenuron | Bloody diarrhoea; Anorexia; Alopecia; Bacterial skin infection NOS; Hyperpigm... | Ongoing |
| Jun 16, 2012 | Dog | Spaniel - Cocker American | Melarsomine Dihydrochloride Injection | Pruritus; Alopecia NOS; Uncoded sign | Outcome Unknown |
| Jun 16, 2012 | Cat | Domestic Mediumhair | Selamectin | Application site alopecia; Application site scab; Aural haematoma; Scratching... | Ongoing |
| Jun 15, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Aggression; Behavioural disorder NOS; Vocalisation; Head shake - ear disorder... | Euthanized |
| Jun 15, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia | Ongoing |
| Jun 15, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia; Anorexia; Lethargy (see also Central nervous syste... | Ongoing |
| Jun 14, 2012 | Dog | Sheepdog - Shetland | Ivermectin/Pyrantel Pamoate Chewable ... | Application site alopecia; Application site lesion; Blistering (see also Appl... | Outcome Unknown |
| Jun 14, 2012 | Cat | Cat (unknown) | Selamectin | Application site alopecia | Ongoing |
| Jun 13, 2012 | Dog | Greyhound | Ivermectin/Pyrantel Pamoate Chewable ... | Application site alopecia | Outcome Unknown |
| Jun 13, 2012 | Cat | Domestic Longhair | Selamectin | Application site alopecia | Ongoing |
| Jun 13, 2012 | Cat | Siamese | Selamectin | Application site alopecia; Application site erythema; Application site scab; ... | Ongoing |
| Jun 12, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Application site burn; Application site alopecia | Recovered/Normal |
| Jun 12, 2012 | Dog | Schnauzer - Miniature | Ivermectin/Pyrantel Pamoate Chewable ... | Application site alopecia; Application site skin discolouration | Outcome Unknown |
| Jun 11, 2012 | Cat | Domestic Shorthair | Emodepside; Praziquantel | Application site alopecia | Recovered/Normal |
| Jun 11, 2012 | Dog | Retriever - Labrador | Ivermectin/Pyrantel Pamoate Chewable ... | Application site alopecia; Application site scab; Application site reaction NOS | Outcome Unknown |
| Jun 11, 2012 | Cat | Domestic Mediumhair | Emodepside; Praziquantel | Application site alopecia; Alopecia NOS; Fungal skin infection NOS | Recovered/Normal |
| Jun 10, 2012 | Dog | Pit Bull | Cyclosporine | Depression; Alopecia NOS | - |
| Jun 10, 2012 | Cat | Domestic Shorthair | Cefovecin | Alopecia NOS | Outcome Unknown |
| Jun 9, 2012 | Dog | Shepherd Dog - Australian | Praziquantel; Pyrantel Pamoate; Febantel | Cough; Alopecia NOS; Pruritus; Self trauma | Recovered/Normal |
| Jun 9, 2012 | Dog | Retriever - Labrador | Moxidectin; Imidacloprid | Alopecia general; Erythema (for urticaria see Immune SOC); Pruritus | Outcome Unknown |
| Jun 9, 2012 | Cat | Bengal | Imidacloprid; Moxidectin | Application site erythema; Application site alopecia; Application site pruritus | Outcome Unknown |
| Jun 9, 2012 | Cat | Domestic Shorthair | Cefovecin | Alopecia local | Ongoing |
| Jun 9, 2012 | Dog | Schnauzer - Miniature | Imidacloprid And Moxidectin | Alopecia local; Erythema (for urticaria see Immune SOC); Pruritus; Lack of ef... | Outcome Unknown |
| Jun 8, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia; Itching | Outcome Unknown |
| Jun 8, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Application site alopecia | Recovered/Normal |
| Jun 8, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia; Application site erythema; Application site prurit... | Ongoing |
| Jun 8, 2012 | Cat | Cat (unknown) | Selamectin | Application site alopecia; Loose stool; Protrusion membrana nictitans; Sneezi... | Ongoing |
| Jun 8, 2012 | Cat | Cat (unknown) | Selamectin | Application site alopecia | - |
| Jun 8, 2012 | Cat | Domestic Shorthair | Milbemycin Oxime; Lufenuron | Dermatitis; Alopecia; Licking | Recovered/Normal |
| Jun 8, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia; Anorexia; Lethargy (see also Central nervous syste... | Ongoing |
| Jun 8, 2012 | Cat | Domestic Shorthair | Imidacloprid And Moxidectin | Application site ulcer; Ulcerative dermatitis; Application site alopecia; App... | Ongoing |
| Jun 7, 2012 | Dog | Schnauzer - Miniature | Selamectin | Application site alopecia; Application site erythema; Hot spot (pyotraumatic ... | Ongoing |
| Jun 7, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia; Application site scab; Application site itching; A... | Ongoing |
| Jun 7, 2012 | Cat | Domestic Shorthair | Emodepside; Praziquantel | Application site alopecia; Application site reaction NOS | Outcome Unknown |
| Jun 7, 2012 | Cat | Domestic (unspecified) | Selamectin | Application site alopecia; Application site lesion | - |
| Jun 6, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia | Ongoing |
| Jun 6, 2012 | Cat | Domestic (unspecified) | Selamectin | Application site alopecia; Application site inflammation | - |
| Jun 5, 2012 | Cat | Domestic (unspecified) | Selamectin | Application site alopecia | - |
| Jun 5, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Behavioural disorder NOS; Alopecia local; Scratching; Skin lesion NOS; Self t... | Outcome Unknown |
| Jun 5, 2012 | Cat | Crossbred Feline/cat | Selamectin | Application site alopecia; Behavioural disorder NOS; Lack of efficacy (ectopa... | Outcome Unknown |
| Jun 5, 2012 | Cat | Cat (unknown) | Emodepside; Praziquantel | Application site alopecia | Outcome Unknown |
| Jun 5, 2012 | Cat | Domestic (unspecified) | Selamectin | Application site alopecia; Application site pain | - |
| Jun 5, 2012 | Dog | Collie - Border | Selamectin | Application site alopecia; Seborrhoea | Recovered/Normal |
| Jun 5, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Behavioural disorder NOS; Alopecia local; Scratching; Skin lesion NOS; Self t... | Outcome Unknown |
| Jun 5, 2012 | Cat | Siamese | Imidacloprid And Moxidectin | Application site alopecia | Outcome Unknown |
| Jun 5, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Behavioural disorder NOS; Alopecia local; Scratching; Skin lesion NOS; Self t... | Outcome Unknown |
| Jun 4, 2012 | Cat | Domestic Shorthair | Imidacloprid; Moxidectin | Application site alopecia | Outcome Unknown |
| Jun 4, 2012 | Cat | Domestic Shorthair | Selamectin | Application site alopecia | Ongoing |
| Jun 3, 2012 | Dog | Perro de Presa Canario | Spinosad; Milbemycin Oxime | Diarrhoea; Emesis; Alopecia local; Burn | Recovered/Normal |
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.