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
Jun 27, 2015 Cattle Brahman Fenbendazol Suspension Death; Lateral recumbency; NT - Abnormal necropsy finding NOS; Pulmonary oedema Died
Jun 27, 2015 Cattle Cattle (unknown) Tilmicosin Phosphate Recumbency; Death; Pulmonary oedema Died
Jun 26, 2015 Cattle Aberdeen Angus Ivermectin Poor coat condition; Ringworm; Lack of efficacy - NOS Ongoing
Jun 25, 2015 Cattle Holstein-Friesian also know... Tildipirosin Injectable Scour; Death; Respiratory signs; Lack of efficacy (bacteria) - NOS Died
Jun 24, 2015 Cattle Cattle (other) Ceftiofur Crystalline Free Acid Ataxia; Collapse (see also 'Cardio-vascular' and 'Systemic disorders'); Death Died
Jun 24, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Death Died
Jun 23, 2015 Cattle Mixed (Cattle) Tulathromycin Lack of efficacy - NOS Died; Outcome Unknown
Jun 23, 2015 Cattle Holstein-Friesian also know... Ceftiofur Crystalline Free Acid Injection site swelling; Ear flap oedema; Milk drop; Allergic skin reaction; ... Outcome Unknown
Jun 23, 2015 Cattle Holstein-Friesian also know... Tulathromycin Lack of efficacy - NOS Died; Outcome Unknown
Jun 22, 2015 Cattle Aberdeen Angus Tulathromycin Lack of efficacy - NOS; Death Died
Jun 22, 2015 Cattle Holstein-Friesian also know... Ceftiofur Hydrochloride Residues in meat/offal Euthanized
Jun 22, 2015 Cattle Aberdeen Angus Tulathromycin Lack of efficacy - NOS Outcome Unknown
Jun 21, 2015 Cattle Cattle (other) Fenbendazol Powder Mix Lack of efficacy - NOS; INEFFECTIVE, STOMACH WORM NOS; Lack of efficacy (endo... Ongoing
Jun 20, 2015 Cattle Holstein-Friesian also know... Cephapirin Sodium Residues in milk Outcome Unknown
Jun 17, 2015 Cattle Aberdeen Angus Progesterone Vaginal swelling Recovered/Normal
Jun 15, 2015 Cattle Cattle (unknown) Monensin Sodium Decreased appetite; Diarrhoea Outcome Unknown
Jun 14, 2015 Cattle Cattle (unknown) Moxidectin Downer animal; Death; Nasal discharge Died
Jun 13, 2015 Cattle Red Angus Cloprostenol 263 Inj Cattle Anoestrus; INEFFECTIVE, ESTRUS SYNCHRONIZ Recovered/Normal
Jun 12, 2015 Cattle Cattle (other) Ceftiofur Crystalline Free Acid Lack of efficacy - NOS; Lack of efficacy (bacteria) - NOS; Death Died
Jun 10, 2015 Cattle Unknown Oxfendazole Sudden death; Cardiac enlargement Died
Jun 9, 2015 Cattle Unknown Ivermectin Lack of efficacy - NOS Outcome Unknown
Jun 8, 2015 Cattle Crossbred Bovine/Cattle Zeranol Implant Lack of efficacy - NOS; Pink eye Ongoing
Jun 7, 2015 Cattle Holstein-Friesian also know... Eprinomectin 5 Mg/Ml Pour-On Solution Depression; Death Died
Jun 6, 2015 Cattle Cattle (other) Oxfendazole Death Died
Jun 3, 2015 Cattle Holstein-Friesian also know... Cephapirin Sodium Residues in milk Recovered/Normal
Jun 3, 2015 Cattle Jersey Monensin Sodium Alteration of milk quality Recovered/Normal
Jun 2, 2015 Cattle Crossbred Bovine/Cattle Zeranol Implant Hypersalivation; Anaphylaxis; Death; Lateral recumbency; Laboured breathing; ... Died
Jun 2, 2015 Cattle Hereford cattle Enrofloxacin Unconscious; Bloodshot eye; Pale mucous membrane; Death by euthanasia; Depres... Euthanized
Jun 2, 2015 Cattle Crossbred Bovine/Cattle Ceftiofur Crystalline Free Acid Residues in meat/offal Euthanized
Jun 1, 2015 Cattle Cattle (unknown) Ractopamine Hydrochloride Ruminal bloat; Death Died; Outcome Unknown
Jun 1, 2015 Cattle Holstein-Friesian also know... Sometribove Infertility NOS Recovered/Normal
Jun 1, 2015 Cattle Holstein-Friesian also know... Sometribove Reduced conception rate Outcome Unknown
Jun 1, 2015 Cattle Red Angus, Simmental Zeranol Implant Respiratory distress; Found dead; Death Died
Jun 1, 2015 Cattle Cattle (unspecified) Fenbendazol Suspension Lack of efficacy - NOS; INEFFECTIVE, WORMS NOS Outcome Unknown
Jun 1, 2015 Cattle Mixed (Cattle) Trenbolone Acet/Estrad Sr Imp Sexual disorder NOS (see 'Reproductive' for named sexual disorders) Outcome Unknown
Jun 1, 2015 Cattle Cattle (unknown) Monensin Sodium Death; Unthrifty Recovered with Sequela; Died
Jun 1, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Milk fever; Death; Displaced abomasum; Alteration of milk quality; Ketosis; A... Died; Outcome Unknown
Jun 1, 2015 Cattle Holstein-Friesian also know... Ceftiofur Hydrochloride Urticaria; Fever Recovered/Normal
Jun 1, 2015 Cattle Cattle (unknown) Tilmicosin Phosphate Injection site swelling; Death; Systemic disorder NOS; Swollen lymph node Died; Outcome Unknown
May 31, 2015 Cattle Holstein-Friesian also know... Estradiol Pain NOS; Digestive tract disorder NOS; Behavioural disorder NOS Outcome Unknown
May 30, 2015 Cattle Red Angus Zeranol Implant Inappropriate urination; Nasal discharge; Death; Lateral recumbency; Laboured... Died
May 30, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Decreased appetite; Diarrhoea Recovered/Normal
May 30, 2015 Cattle Cattle (other) Ractopamine Hydrochloride Residues in meat/offal Outcome Unknown
May 29, 2015 Cattle Mixed (Cattle) Monensin Sodium Death; Systemic disorder NOS Died
May 28, 2015 Cattle Mixed (Cattle) Monensin Sodium Death; Not eating Died; Outcome Unknown
May 28, 2015 Cattle Cattle (other) Cloprostenol 263 Inj Cattle Sudden death Died
May 28, 2015 Cattle Cattle (other) Lasalocid Sodium Lack of efficacy - NOS; Lack of efficacy (protozoa) - Coccidia Outcome Unknown
May 27, 2015 Cattle Red Angus Zeranol Implant Breathing difficulty; Foam in the nose; Foam in the mouth; Shaking; Death; An... Died
May 25, 2015 Cattle Cattle (other) Doramectin; Phenol Death; Anaphylactic-type reaction Recovered/Normal; Died
May 24, 2015 Cattle Crossbred Bovine/Cattle Monensin Sodium Staggering; Recumbency; Death 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.