Reaction profile

The FDA adverse-event record for hyperkeratosis

168 FDA adverse-event reports reference hyperkeratosis (VeDDRA 896). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1132 of 2,481
by report volume (all reactions)
168
reports citing this reaction
10.7%
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. Hyperkeratosis has 168 reports now versus 166 in that prior snapshot: 2 more (1.2%).

Report change
+2
Death-coded reports
+0
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 Hyperkeratosis changes

FDA AER · VeDDRA plate

Code 896 VOL-LOW

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

  • VOL-LOW 168 reports
  • DEATH-ELEV 10.7%
  • MID-PACK #1132/2481
  • PHOTO-FINISH Involuntary movement
  • SPECIES-DOG Dog · 149
  • DRUG-LEAD Oclacitinib Malea… · 33
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Involuntary movement (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Report-volume neighbourhood around Hyperkeratosis

Highest and lowest poles plus nearest volume peers, not a full 2,500-reaction corpus board reprint.

Vomiting · highest174348Administration device… · near169Corneal oedema · near169Hyperkeratosis · this reacti…168Involuntary movement · near168Tingling sensation · near168Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Hyperkeratosis

What the FDA AER plate says about Hyperkeratosis

Signature read: death-coded share at 10.7% is the most distinctive outcome stamp on Hyperkeratosis. Report volume sits in the middle third of the reaction corpus. 18 of 168 reports were death-coded (10.7% of named reports, not a population mortality rate). Nearest volume peer: Involuntary movement (±0 reports). Lead species Dog (149). Lead co-reported drug Oclacitinib Maleate (33).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Oclacitinib Maleate 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 149
Cat 12
Mouse 4
Cattle 2
Horse 1

Breeds Most Affected

Retriever - Labrador 11
Retriever - Golden 9
Domestic Shorthair 9
Crossbred Canine/dog 7
Shepherd Dog - German 6
Dog (unknown) 6
Boxer (German Boxer) 5
Unknown 5
Chihuahua 5
Schnauzer (unspecified) 4

Associated Drugs

Oclacitinib Maleate 33
Cyclosporine A 24
Cyclosporine 19
Trilostane 18
Maropitant Citrate 15
Milbemycin Oxime + Spinosad 12
Prednisone 12
Afoxolaner 10
Cefpodoxime Proxetil 9
Enrofloxacin 9
Anti-Il31 Mab Mcs Lot #1283563 8
Ketoconazole 7
Metronidazole 7
Cefovecin Sodium 6
Prednisolone 6
Gabapentin 6
Pentoxifylline 6
Hydrolyzed Protein Diet 6
Carprofen 5
Rabies Vaccine 5

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Hyperkeratosis, 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 (168 here).

Similar death-coded share

Nearest other reactions by death-coded share (10.7% 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 Hyperkeratosis (#1132 of 2,481 by report volume); death-coded 10.7%. PlainBreed reaction plate · death-coded share stamp 10.7% · 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 →