Browse Pet Safety Reports

31,013 FDA adverse event reports for pets.

FDA Veterinary Adverse Event Database

Browse 31,013 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 31,013 FDA veterinary adverse event reports for Cattle.

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Date Species Breed Drug Reaction Outcome
May 22, 2015 Cattle Cattle (other), Cattle (other) Doramectin; Phenol Sudden death; Anaphylactic-type reaction Died
May 22, 2015 Cattle Holstein-Friesian also know... Ivermectin Recumbency; Death; Diarrhoea; Hypersalivation; Loss of voluntary movement Died
May 22, 2015 Cattle Cattle (unspecified) Progesterone Drooling; Depression; Death; PR-LUNG(S), LESION(S); Pneumonia Died
May 21, 2015 Cattle Mixed (Cattle) Melengestrol Acetate Lack of efficacy - NOS Outcome Unknown
May 20, 2015 Cattle Aberdeen Angus Eprinomectin 5% Injection Injection site swelling; Skin swelling Outcome Unknown
May 20, 2015 Cattle Aberdeen Angus Ivermectin(1%)/Clorsulon(10%) Injection Anorexia; Diarrhoea; Loss of condition; Lack of efficacy - NOS; Digestive tra... Ongoing
May 20, 2015 Cattle Aberdeen Angus Ivermectin(1%)/Clorsulon(10%) Injection Loss of condition; Lack of efficacy - NOS; Digestive tract disorder NOS; INEF... Outcome Unknown
May 19, 2015 Cattle Cattle (other) Doramectin; Phenol Death; Anaphylactic-type reaction; Respiratory tract disorder NOS Died
May 18, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Not eating Recovered/Normal
May 17, 2015 Cattle Holstein-Friesian also know... Cephapirin Sodium Residues NOS; RESIDUE, URINE Recovered/Normal
May 15, 2015 Cattle Cattle (unknown) Eprinomectin 5% Injection Infertility NOS Outcome Unknown
May 15, 2015 Cattle Cattle (other) Fenbendazol Block Lack of efficacy - NOS; INEFFECTIVE, WORMS NOS Outcome Unknown
May 15, 2015 Cattle Aberdeen Angus Eprinomectin 5% Injection Lethargy (see also Central nervous system depression in 'Neurological'); Droo... Outcome Unknown
May 13, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Alteration of milk quality Outcome Unknown
May 13, 2015 Cattle Cattle (other) Dinoprost Tromethamine Lateral recumbency; Collapse NOS (see also 'Cardio-vascular' and 'Neurologica... Recovered/Normal
May 12, 2015 Cattle Aberdeen Angus Dinoprost Tromethamine INEFFECTIVE, ESTRUS SYNCHRONIZ Outcome Unknown
May 11, 2015 Cattle Red Angus Zeranol Implant Found dead; Anaphylaxis Died
May 11, 2015 Cattle Mixed (Cattle) Cephapirin Sodium Residues in milk Recovered/Normal; Outcome Unknown
May 11, 2015 Cattle Holstein-Friesian also know... Moxidectin Other abnormal test result NOS Outcome Unknown
May 10, 2015 Cattle Aberdeen Angus Ceftiofur Crystalline Free Acid Death; Muscle shaking Died
May 10, 2015 Cattle Aberdeen Angus Oxytetracycline Injection site swelling Recovered/Normal
May 10, 2015 Cattle Holstein-Friesian also know... Pirlimycin Hydrochloride Acute mastitis; Sudden death; CULTURE/TITER DATA ABNORMAL; Downer animal; Death Recovered/Normal; Died; Euthanized; Outcome Unknown
May 9, 2015 Cattle Cattle (unknown) Monensin Sodium Death; NT - Abnormal necropsy finding NOS Died
May 8, 2015 Cattle Holstein-Friesian also know... Gamithromycin 15% Solution For Injection Injection site swelling; Lameness Outcome Unknown
May 8, 2015 Cattle Cattle (other) Cephapirin Sodium Alteration of milk quality Recovered/Normal
May 8, 2015 Cattle Cattle (other) Eprinomectin 5% Injection Poor coat condition; Unthrifty; Hair coat discolouration; Lack of efficacy - NOS Outcome Unknown
May 7, 2015 Cattle Cattle (other) Ceftiofur Crystalline Free Acid Death by euthanasia; Residues in meat/offal; Abscess NOS Euthanized
May 7, 2015 Cattle Cattle (other) Eprinomectin 5% Injection Recumbency; Laboured breathing; Haemorrhagic gastroenteritis; Pulmonary oedem... Died
May 7, 2015 Cattle Cattle (other) Dinoprost Tromethamine INEFFECTIVE, ESTRUS SYNCHRONIZ; Product Defect, General Outcome Unknown
May 6, 2015 Cattle Crossbred Bovine/Cattle Zeranol Implant Anaphylaxis; Pulmonary oedema; Found dead; NT - Abnormal necropsy finding NOS Died
May 6, 2015 Cattle Holstein-Friesian also know... Ceftiofur Crystalline Free Acid Injection site inflammation; Injection site swelling Outcome Unknown
May 5, 2015 Cattle Holstein-Friesian also know... Moxidectin Dermatitis Ongoing
May 5, 2015 Cattle Cattle (other) Pirlimycin Hydrochloride Acute mastitis; Death Died; Outcome Unknown
May 5, 2015 Cattle Holstein-Friesian also know... Ceftiofur Crystalline Free Acid Residues in meat/offal Euthanized
May 4, 2015 Cattle Cattle (unknown) Monensin Sodium Lack of efficacy - NOS; INEFFECTIVE, PRODUCTION (MILK) Outcome Unknown
May 4, 2015 Cattle Holstein-Friesian also know... Ceftiofur Crystalline Free Acid Unable to stand; Sudden death; Ataxia; NT - Abnormal necropsy finding NOS; Pn... Died
May 4, 2015 Cattle Mixed (Cattle) Ractopamine Hydrochloride Ruminal bloat; Death Recovered/Normal; Died
May 4, 2015 Cattle Aberdeen Angus Doramectin; Phenol Lack of efficacy - NOS; Weight loss; INEFFECTIVE, PARASITE(S) NOS Outcome Unknown
May 3, 2015 Cattle Aberdeen Angus Monensin Sodium Ruminal bloat; Death Died
May 1, 2015 Cattle Mixed (Cattle) Sometribove Alteration of milk quality; Lethargy (see also Central nervous system depress... Outcome Unknown
May 1, 2015 Cattle Holstein-Friesian also know... Sometribove Milk production decrease; Lack of efficacy - NOS Ongoing
May 1, 2015 Cattle Red Angus Trenbolone Acet/Estrad Sr Imp Lung oedema; Death Died
May 1, 2015 Cattle Holstein-Friesian also know... Cloxacillin Benz Intramam Dc Alteration of milk quality; Lack of efficacy - NOS; Other abnormal test resul... Outcome Unknown
Apr 30, 2015 Cattle Cattle (other) Doramectin Lack of efficacy - NOS; Rubbing; Itching; INEFFECTIVE, LICE BITING Outcome Unknown
Apr 29, 2015 Cattle Cattle (other) Moxidectin Lack of efficacy - NOS; Hair modification NOS; INEFFECTIVE, WORMS NOS Outcome Unknown
Apr 29, 2015 Cattle Unknown Eprinomectin 5 Mg/Ml Pour-On Solution Abortion Outcome Unknown
Apr 28, 2015 Cattle Holstein-Friesian also know... Ceftiofur Crystalline Free Acid Residues in meat/offal; DEATH-SLAUGHTERED Euthanized
Apr 28, 2015 Cattle Crossbred Bovine/Cattle Tildipirosin Injectable Death Died
Apr 28, 2015 Cattle Mixed (Cattle) Melengestrol Acetate Lack of efficacy - NOS Outcome Unknown
Apr 28, 2015 Cattle Cattle (other) Albendazole Found dead Died

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.