Anaphylactic shock

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VeDDRA Code: 1112

281 adverse event reports referencing this reaction

281
Total Reports
69
Deaths
2460.0%
Death Rate

Species Most Affected

Dog 226
Cat 24
Horse 14
Cattle 12
Pig 2
Human 2
Sheep 1

Breeds Most Affected

Domestic Shorthair 15
Chihuahua 15
Terrier - Bull - American Pit 13
Shih Tzu 11
Boxer (German Boxer) 11
Retriever - Labrador 10
Crossbred Canine/dog 10
Maltese 8
Dog (unknown) 8
Terrier - Yorkshire 8

Associated Drugs

Moxidectin 108
Maropitant Citrate 25
Cefovecin 20
Milbemycin Oxime + Spinosad 20
Dexamethasone 15
Diphenhydramine Hcl 15
Rabies Virus, Kv 12
Bordetella Bronchiseptica 92B 012992-7 Strain Boehringer Ingelheim 12
Rabies Virus, 12
Ivermectin + Pyrantel As Pamoate Salt 11
Leptospira Canicola L-15 Strain C-51;Leptospira Grippotyphosa 1550 Lot 10005 Str 11
Carprofen 11
Famotidine 9
Melarsomine Dihydrochloride 8
Rabies Vaccine 6
Afoxolaner 6
Bedinvetmab 6
Epinephrine 5
Dexamethasone Sodium Phosphate 5
Melarsomine Dihydrochloride Injection 5

Data Summary

Metric Value
Total reports referencing reaction 281
Reports with fatal outcome 69
Case-fatality rate (reported events) 2460.0%
Species observed 7
Breeds observed 20
Drugs associated with reaction 20

Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER); reaction term coded under VeDDRA 1112.

Anaphylactic shock Reaction Insights

The FDA Center for Veterinary Medicine database currently lists 281 adverse event reports that reference Anaphylactic shock as a reaction term, including 69 reports with a death outcome — a 2460.0% case-fatality figure calculated across only those events where this reaction was coded. The reaction is indexed in the openFDA system under VeDDRA code 1112, the standardized veterinary dictionary used to normalize clinical signs across submitters. Because reports are voluntary and often describe multiple concurrent signs per animal, the volume here reflects reporting intensity rather than true incidence in the broader pet population.

Anaphylactic shock appears most frequently in reports for Dog (226 reports), Cat (24 reports), Horse (14 reports) — with Dog dominating at 226 entries. Within those species, the breeds most often named alongside this reaction are Domestic Shorthair (15), Chihuahua (15), Terrier - Bull - American Pit (13). These distributions are influenced both by underlying breed popularity and by how veterinarians and owners code a given clinical sign, so they should be interpreted as a reporting fingerprint rather than a pure susceptibility ranking.

The drugs most commonly co-reported with Anaphylactic shock are Moxidectin (108 reports), Maropitant Citrate (25 reports), Cefovecin (20 reports), Milbemycin Oxime + Spinosad (20 reports), with Moxidectin appearing alongside this reaction in 108 submissions. Co-reporting does not establish that any specific product caused the reaction — FDA CVM data captures temporal association only. The value of these aggregates is in flagging which therapeutic classes appear repeatedly alongside a given clinical sign, so owners and veterinarians can ask targeted questions about medications currently in use.

Source: FDA Center for Veterinary Medicine — Adverse Event Reports FDA Center for Veterinary Medicine — Adverse Event Reports Data reflects voluntary submissions and may not represent actual incidence rates

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Data sourced from official AKC, AVMA, ACVO, and breed-club veterinary references. See our methodology for details. Retrieved and formatted by PlainBreed Editorial