Reaction profile

The FDA adverse-event record for elevated aspartate aminotransferase (ast)

2,499 FDA reports name elevated aspartate aminotransferase (ast), a high-volume reaction in the CVM extract (VeDDRA 2049). Plate stamps and neighbourhood peers follow.

#191 of 2,481
by report volume (all reactions)
2,499
reports citing this reaction
19.7%
death-coded share
Dog
most-affected species

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Elevated aspartate aminotransferase (AST) has 2,499 reports now versus 2,455 in that prior snapshot: 44 more (1.8%).

Report change
+44
Death-coded reports
+6
Death-coded share
−0.1 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Elevated aspartate aminotransferase (AST) changes

FDA AER · VeDDRA plate

Code 2049 VOL-MID

VOL-MID · DEATH-ELEV · TOP-DECILE · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-MID 2,499 reports
  • DEATH-ELEV 19.7%
  • TOP-DECILE #191/2481
  • PHOTO-FINISH Vials, Damaged
  • SPECIES-DOG Dog · 2,069
  • DRUG-LEAD Carprofen · 620
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Vials, Damaged (±1 reports)

Upper-third report volume drives the scale stamps on this plate; death-coded share and co-report peers follow. Not a clinical diagnosis.

High-volume neighbourhood around Elevated aspartate aminotransferase

Upper-third volume poles plus nearest peers, not a full reaction corpus board reprint.

Vomiting · highest174348Licking · near2506Vials, Damaged · near2500Elevated aspartate am… · thi…2499Nystagmus · near2489Head tremor · near2485Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Elevated aspartate aminotransferase (AST)

What the FDA AER plate says about Elevated aspartate aminotransferase (AST)

Signature read: 493 death-coded reports is a heavy tail count for Elevated aspartate aminotransferase (AST) in the CVM extract. Report volume is upper-third scale: 2,499 named reports in the openFDA extract. 493 of 2,499 reports were death-coded (19.7% of named reports, not a population mortality rate). Nearest volume peer: Vials, Damaged (±1 reports). Lead species Dog (2,069). Lead co-reported drug Carprofen (620).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Carprofen appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 2,069
Cat 354
Horse 54
Cattle 9
Human 7
Sheep 1
Other 1
Other Rodents 1
Other Birds 1
Lynx 1

Breeds Most Affected

Retriever - Labrador 436
Domestic Shorthair 225
Crossbred Canine/dog 181
Chihuahua 81
Retriever - Golden 78
Shepherd Dog - German 49
Terrier - Yorkshire 48
Beagle 44
Shih Tzu 43
Maltese 41

Associated Drugs

Carprofen 620
Maropitant Citrate 188
Oclacitinib Maleate 167
Trilostane 153
Gabapentin 110
Milbemycin Oxime + Spinosad 103
Afoxolaner 103
Fluralaner Chew Tablets 95
Meloxicam 77
Bedinvetmab 72
Moxidectin 71
Ivermectin + Pyrantel As Pamoate Salt 67
Spinosad 66
Deracoxib 66
Tramadol 57
Famotidine 56
Cefovecin 56
Prednisone 52
Sam-E, Silybin, Vitamin E, Zinc 52
Grapiprant 51

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Elevated aspartate aminotransferase (AST), both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (2,499 here).

Similar death-coded share

Nearest other reactions by death-coded share (19.7% here), distinct from the volume row.

What to do with this reaction

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Elevated aspartate aminotransferase (AST) (#191 of 2,481 by report volume); death-coded 19.7%. PlainBreed reaction plate · death-coded report count stamp 493 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →