Browse Pet Safety Reports
1,068 FDA adverse event reports for pets.
FDA Veterinary Adverse Event Database
Browse 1,068 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 1,068 FDA veterinary adverse event reports for Sheep.
| Date | Species | Breed | Drug | Reaction | Outcome |
|---|---|---|---|---|---|
| Apr 4, 2009 | Sheep | Sheep (unknown) | Tilmicosin Phosphate | Dyspnoea; Nasal discharge; Depression; Injection site swelling | — |
| Mar 1, 2009 | Sheep | Sheep (unknown) | Tilmicosin Phosphate | Staggering; Death | Died |
| Feb 20, 2009 | Sheep | Dorset Down | Selenium, Vitamin E | Pulmonary congestion; Death; PR-PLEURAL EFFUSION | Died |
| Jan 15, 2009 | Sheep | Sheep (unknown) | Monensin | Abortion; Death; UNPALATABLE | Died |
| Jan 13, 2009 | Sheep | Crossbred Ovine/sheep | Oxytetracycline | Lack of efficacy (bacteria) - NOS | — |
| Oct 29, 2008 | Sheep | Merino - fine wool | Albendazole | Anorexia | — |
| Oct 17, 2008 | Sheep | Crossbred Ovine/sheep | Cephapirin Benzathine | Mammary gland disorder NOS; Death; Mammary gland oedema; Alteration of milk q... | Died |
| Sep 29, 2008 | Sheep | Suffolk sheep | Doramectin | INEFFECTIVE, STOMACH WORM NOS; INEFFECTIVE, PARASITE(S) NOS; Death | Died |
| Sep 29, 2008 | Sheep | Sheep (unknown) | Ivermectin | Death | Died |
| Sep 23, 2008 | Sheep | Hampshire Down | Amprolium | Nasal discharge; Death | Died |
| Sep 8, 2008 | Sheep | Sheep (unknown) | Albendazole | INEFFECTIVE, PARASITE(S) NOS | — |
| Aug 20, 2008 | Sheep | Mixed (Sheep) | Penicillin G Procaine | Shock; Collapse (see also 'Cardio-vascular' and 'Systemic disorders') | — |
| Aug 19, 2008 | Sheep | Suffolk sheep | Albendazole | Pale mucous membrane; Death; Anaemia NOS; Oedema NOS (see other SOCs for spec... | Died |
| Aug 9, 2008 | Sheep | Sheep (unknown) | Ivermectin | INEFFECTIVE, PARASITE(S) NOS; Death | Died |
| Aug 1, 2008 | Sheep | Merino - fine wool | Ivermectin | Perinatal mortality NOS | Died |
| Aug 1, 2008 | Sheep | Sheep (unknown) | Sulfadimethoxine | Residues in meat/offal | — |
| Aug 1, 2008 | Sheep | Sheep (unknown) | Ivermectin | Hair modification NOS; Hair shedding | — |
| Jul 31, 2008 | Sheep | Sheep (unknown) | Ivermectin | Cachexia; Death; Weight loss; INEFFECTIVE, STOMACH WORM NOS | Died |
| Jul 27, 2008 | Sheep | Sheep (unknown) | Ivermectin | INEFFECTIVE, ASCARIDS NOS; INEFFECTIVE, ASCARIDS NOS; Death | Died |
| Jun 29, 2008 | Sheep | Crossbred Ovine/sheep | Albendazole | Lack of efficacy (endoparasite) - tapeworm; Ataxia; Death; Death by euthanasi... | Died |
| Jun 26, 2008 | Sheep | Crossbred Ovine/sheep | Doramectin | No sign; Solution, Abnormal; Residues in meat/offal | — |
| Jun 19, 2008 | Sheep | Sheep (unknown) | Monensin | Accidental exposure; Inappropriate preparation of medication; Recumbency; Dep... | Died |
| Jun 15, 2008 | Sheep | Sheep (unknown) | Monensin | Death; Anorexia; Weight loss; Depression; PR-HEART, LESION(S) | Died |
| Jun 11, 2008 | Sheep | Rambouillet | Albendazole | Lack of efficacy (endoparasite) - roundworm NOS | — |
| May 15, 2008 | Sheep | Sheep (unknown) | Selenium, Vitamin E | Respiratory distress; Death; Accidental exposure | Died |
| May 12, 2008 | Sheep | Sheep (unknown) | Sulfadimethoxine | Residues in meat/offal | — |
| May 1, 2008 | Sheep | Sheep (unknown) | Ivermectin | Trembling; Recumbency | — |
| Apr 29, 2008 | Sheep | Sheep (unknown) | Ivermectin | Neurological signs NOS; Ataxia | — |
| Apr 23, 2008 | Sheep | Crossbred Ovine/sheep | Tulathromycin | Injection site pain | — |
| Apr 20, 2008 | Sheep | Sheep (unknown) | Ivermectin | Ataxia; Staggering | — |
| Mar 14, 2008 | Sheep | Suffolk sheep | Narasin, Nicarbazin | Accidental exposure; Pulmonary congestion; Death | Died |
| Mar 14, 2008 | Sheep | Suffolk sheep | Monensin | Accidental exposure; Death; Weight loss; PR-LIVER, LESION(S); PR-LUNG(S), EDE... | Died |
| Feb 26, 2008 | Sheep | Sheep (unknown) | Monensin | Accidental exposure; Death; Anorexia; Ruminal bloat; Depression | Died |
| Feb 20, 2008 | Sheep | Sheep (unknown) | Selenium, Vitamin E | Death | Died |
| Feb 6, 2008 | Sheep | Suffolk sheep | Methylprednisolone Acetate | No sign | — |
| Feb 1, 2008 | Sheep | Sheep (unknown) | Doramectin | Injection site pain; Lameness | Recovered/Normal |
| Jan 16, 2008 | Sheep | Crossbred Ovine/sheep | Doramectin | Residues in meat/offal | — |
| Jan 1, 2008 | Sheep | Sheep (unknown) | Eprinomectin | Death | Died |
| Dec 21, 2007 | Sheep | Suffolk sheep | Albendazole | Lack of efficacy (endoparasite) - tapeworm | — |
| Dec 15, 2007 | Sheep | Sheep (unknown) | Ivermectin | Death | Died |
| Nov 9, 2007 | Sheep | Sheep (other) | Albendazole | Death; Swelling NOS; INEFFECTIVE, STOMACH WORM NOS; INEFFECTIVE, STRONGYLES | Died |
| Oct 28, 2007 | Sheep | Mixed (Sheep) | Levamisole Hydrochloride | Anaphylaxis | Died |
| Sep 14, 2007 | Sheep | Sheep (unknown) | Albendazole | Death; INEFFECTIVE, STOMACH WORM NOS | Died |
| Aug 30, 2007 | Sheep | Sheep (unknown) | Levamisole Hydrochloride | Death | Died |
| Aug 28, 2007 | Sheep | Sheep (unknown) | Ivermectin | Blindness; Impaired vision; Behavioural disorder NOS | — |
| Aug 1, 2007 | Sheep | Sheep (unknown) | Lasalocid | Lack of efficacy (protozoa) - Coccidia; Death | Died |
| Aug 1, 2007 | Sheep | Suffolk sheep | Lincomycin Hydrochloride | Accidental exposure; Residues in meat/offal | — |
| Jul 30, 2007 | Sheep | Sheep (unknown) | Levamisole Hydrochloride | Anaphylaxis; Death; PR-LUNG(S), LESION(S); PR-LUNG(S), EDEMA; PR-TRACHEA, LES... | Died |
| Jul 18, 2007 | Sheep | Suffolk sheep | Moxidectin | INEFFECTIVE, PARASITE(S) NOS; PR-GASTROINTESTINAL PARASITISM; Facial oedema; ... | Died |
| Jul 17, 2007 | Sheep | Suffolk sheep | Albendazole | No sign | — |
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.