Elevated liver enzymes NOS

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VeDDRA Code: 1942

717 adverse event reports referencing this reaction

717
Total Reports
167
Deaths
2330.0%
Death Rate

Species Most Affected

Dog 637
Cat 70
Horse 7
Human 2
Monkey 1

Breeds Most Affected

Retriever - Labrador 113
Crossbred Canine/dog 42
Domestic Shorthair 41
Dog (unknown) 36
Retriever - Golden 31
Terrier - Bull - American Pit 23
Shepherd Dog - German 21
Shih Tzu 20
Terrier (unspecified) 18
Chihuahua 17

Associated Drugs

Bedinvetmab 255
Carprofen 91
Gabapentin 73
Maropitant Citrate 59
Oclacitinib Maleate 56
Pyrantel Pamoate;Sarolaner 48
Moxidectin 34
Trilostane 30
Fluralaner 13.64% 12-Week Chew 28
Prednisone 27
Milbemycin Oxime + Praziquantel 24
Galliprant 24
Denamarin 23
Grapiprant 23
Afoxolaner 20
Doxycycline 19
Anti-Il31 Mab Mcs Lot #1283563 18
Enrofloxacin 16
Ondansetron 16
Frunevetmab 15

Data Summary

Metric Value
Total reports referencing reaction 717
Reports with fatal outcome 167
Case-fatality rate (reported events) 2330.0%
Species observed 5
Breeds observed 20
Drugs associated with reaction 20

Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER); reaction term coded under VeDDRA 1942.

Elevated liver enzymes NOS Reaction Insights

The FDA Center for Veterinary Medicine database currently lists 717 adverse event reports that reference Elevated liver enzymes NOS as a reaction term, including 167 reports with a death outcome — a 2330.0% case-fatality figure calculated across only those events where this reaction was coded. The reaction is indexed in the openFDA system under VeDDRA code 1942, 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.

Elevated liver enzymes NOS appears most frequently in reports for Dog (637 reports), Cat (70 reports), Horse (7 reports) — with Dog dominating at 637 entries. Within those species, the breeds most often named alongside this reaction are Retriever - Labrador (113), Crossbred Canine/dog (42), Domestic Shorthair (41). 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 Elevated liver enzymes NOS are Bedinvetmab (255 reports), Carprofen (91 reports), Gabapentin (73 reports), Maropitant Citrate (59 reports), with Bedinvetmab appearing alongside this reaction in 255 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