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
Jan 1, 2015 Cattle Holstein-Friesian also know... Sometribove Injection site abscess; Injection site lump Outcome Unknown
Jan 1, 2015 Cattle Cattle (unknown) Monensin Sodium Aggression; Increased appetite; Behavioural disorder NOS Recovered/Normal
Jan 1, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Reduced conception rate Outcome Unknown
Jan 1, 2015 Cattle Cattle (unknown) Sometribove Injection site infection Outcome Unknown
Jan 1, 2015 Cattle Holstein-Friesian also know... Sometribove Claw / hoof / nail disorder NOS; Mammary gland disorder NOS Outcome Unknown
Jan 1, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Alteration of milk quality Recovered/Normal
Jan 1, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Abnormal birth weight Recovered/Normal
Jan 1, 2015 Cattle Cattle (unknown) Ractopamine Hydrochloride Death Died
Jan 1, 2015 Cattle Cattle (unknown) Tilmicosin Lack of efficacy - NOS Outcome Unknown
Jan 1, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Alteration of milk quality Outcome Unknown
Jan 1, 2015 Cattle Cattle (unknown) Monensin Sodium Infertility NOS; Weight gain Recovered/Normal; Outcome Unknown
Jan 1, 2015 Cattle Cattle (unknown) Monensin Sodium Death; Cardiac disorder NOS; Pericardial haemorrhage; Pulmonary congestion; P... Died
Jan 1, 2015 Cattle Holstein-Friesian also know... Monensin Sodium Alteration of milk quality Recovered/Normal
Dec 31, 2014 Cattle Red Angus Trenbolone Acet/Estradiol Impl Found dead Died
Dec 30, 2014 Cattle Mixed (Cattle) Monensin Sodium Death Died
Dec 30, 2014 Cattle Cattle (unspecified) Ceftiofur Hydrochloride Injection site swelling; Death by euthanasia; PR-INJECTION SITE, LESION(S) Ongoing
Dec 29, 2014 Cattle Cattle (other) Doramectin Lack of efficacy - NOS; Pruritus; Rubbing; PR-SKIN, LESION(S); Dermatitis; Ri... Outcome Unknown
Dec 29, 2014 Cattle Holstein-Friesian also know... Doramectin; Phenol Sudden death; Anaphylactic-type reaction Recovered/Normal; Died
Dec 29, 2014 Cattle Holstein-Friesian also know... Moxidectin Lack of efficacy - NOS; Lack of efficacy (ectoparasite) - lice Outcome Unknown
Dec 29, 2014 Cattle Cattle (other) Tulathromycin Lack of efficacy (bacteria) - NOS; Increased mortality rate Died
Dec 28, 2014 Cattle Ayrshire Cephapirin Sodium Residues in milk Outcome Unknown
Dec 28, 2014 Cattle Holstein-Friesian also know... Ivermectin(1%)/Clorsulon(10%) Injection Illness NOS; Death Died; Outcome Unknown
Dec 25, 2014 Cattle Aberdeen Angus, Cattle (unk... Monensin Sodium Death; Ruminal bloat Died
Dec 23, 2014 Cattle Cattle (other) Ceftiofur Hydrochloride Residues in milk Outcome Unknown
Dec 22, 2014 Cattle Cattle (other) Doramectin Lack of efficacy - NOS; Scratching; Localised hair loss; Lack of efficacy (ec... Outcome Unknown
Dec 22, 2014 Cattle Holstein-Friesian also know... Monensin Sodium Lateral recumbency; Ataxia Recovered/Normal
Dec 22, 2014 Cattle Cattle (other) Doramectin; Phenol Lack of efficacy - NOS; INEFFECTIVE, PARASITE(S) NOS; Weight loss; Low weight... Outcome Unknown
Dec 21, 2014 Cattle Holstein-Friesian also know... Florfenicol/Flunixin Inj-Triac Respiratory signs; Death; Lack of efficacy - NOS; Lack of efficacy (bacteria)... Ongoing; Died
Dec 21, 2014 Cattle Holstein-Friesian also know... Moxidectin Recumbency; Lethargy (see also Central nervous system depression in 'Neurolog... Recovered with Sequela; Died
Dec 20, 2014 Cattle Aberdeen Angus Eprinomectin 5 Mg/Ml Pour-On Solution Scratching; Localised hair loss; Systemic disorder NOS; Lack of efficacy - NO... Outcome Unknown
Dec 20, 2014 Cattle Cattle (unknown) Ivermectin 0.5% Pour-On Topical Solution Itching; Localised hair loss; Systemic disorder NOS; Lack of efficacy - NOS; ... Outcome Unknown
Dec 19, 2014 Cattle Cattle (other) Lasalocid Sodium Lack of efficacy - NOS; Lack of efficacy (protozoa) - Coccidia Died
Dec 18, 2014 Cattle Cattle (other) Tulathromycin Lack of efficacy (bacteria) - NOS; Death; Abnormal necropsy finding; Pulmonar... Died; Outcome Unknown
Dec 17, 2014 Cattle Cattle (other) Ceftiofur Crystalline Free Acid Sudden death; Paddling Died
Dec 17, 2014 Cattle Cattle (other) Tulathromycin Increased mortality rate; Lameness; Lack of efficacy (bacteria) - NOS; Abnorm... Died; Outcome Unknown
Dec 16, 2014 Cattle Aberdeen Angus Enrofloxacin Foaming at the mouth; Sudden death; Downer animal Died
Dec 16, 2014 Cattle Cattle (other) Ceftiofur Crystalline Free Acid Lack of efficacy (bacteria) - NOS; Death; Drug dose administration interval t... Died; Outcome Unknown
Dec 16, 2014 Cattle Holstein-Friesian also know... Ceftiofur Crystalline Free Acid Residues in meat/offal Euthanized
Dec 15, 2014 Cattle Cattle (unknown) Monensin Sodium Decreased appetite; Death; Stiffness NOS; NT - Abnormal necropsy finding NOS Recovered/Normal; Died
Dec 15, 2014 Cattle Aberdeen Angus Ivermectin 0.5% Pour-On Topical Solution Pruritus; Hair loss NOS; Lack of efficacy - NOS; Systemic disorder NOS; Lack ... Outcome Unknown
Dec 15, 2014 Cattle Aberdeen Angus Ivermectin 0.5% Pour-On Topical Solution Scratching; Hair loss NOS; Lack of efficacy - NOS; Systemic disorder NOS; Lac... Outcome Unknown
Dec 15, 2014 Cattle Aberdeen Angus Eprinomectin 5 Mg/Ml Pour-On Solution Pruritus; Hair loss NOS; Lack of efficacy - NOS; Systemic disorder NOS; Lack ... Outcome Unknown
Dec 15, 2014 Cattle Aberdeen Angus Ivermectin 0.5% Pour-On Topical Solution Scratching; Hair loss NOS; Lack of efficacy - NOS; Systemic disorder NOS; Lac... Outcome Unknown
Dec 15, 2014 Cattle Cattle (unknown) Amprolium Lack of efficacy (protozoa) - Coccidia Outcome Unknown
Dec 15, 2014 Cattle Holstein-Friesian also know... Sometribove Mammary gland oedema Outcome Unknown
Dec 13, 2014 Cattle Holstein-Friesian also know... Monensin Sodium Death Died
Dec 13, 2014 Cattle Aberdeen Angus, Aberdeen Angus Doramectin Lack of efficacy - NOS; Scratching; Hair loss NOS; INEFFECTIVE, LICE BITING Outcome Unknown
Dec 12, 2014 Cattle Cattle (other) Tulathromycin Lameness; Lack of efficacy (bacteria) - NOS; Death; Bone and joint disorder NOS Died; Outcome Unknown
Dec 12, 2014 Cattle Cattle (other) Tulathromycin Lack of efficacy (bacteria) - NOS; Death Ongoing; Died
Dec 12, 2014 Cattle Holstein-Friesian also know... Chlortetracycline As Hydrochloride No sign; Residues in milk Outcome Unknown

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.