Reaction profile

The FDA adverse-event record for lichenification

84 FDA adverse-event reports reference lichenification (VeDDRA 2037). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1479 of 2,481
by report volume (all reactions)
84
reports citing this reaction
2.4%
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. Lichenification has 84 reports now versus 80 in that prior snapshot: 4 more (5.0%).

Report change
+4
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 Lichenification changes

FDA AER · VeDDRA plate

Code 2037 VOL-LOW

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

  • VOL-LOW 84 reports
  • DEATH-LOW 2.4%
  • MID-PACK #1479/2481
  • PHOTO-FINISH Pulmonary hypertension
  • SPECIES-DOG Dog · 79
  • DRUG-LEAD Oclacitinib Malea… · 27
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Pulmonary hypertension (±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 Lichenification

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

Vomiting · highest174348Dental plaque · near85Lichenification · this react…84Pulmonary hypertension · near84Slow reflexes · near84Destructive behaviour · near83Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Lichenification

Lichenification: low death-coded share in the FDA AER plate

Signature read: Lichenification's 2.4% death-coded share is among the lowest in the openFDA reaction corpus. Report volume sits in the middle third of the reaction corpus. Death-coded share is lower-third: 2 of 84 reports (2.4% of named reports). Nearest volume peer: Pulmonary hypertension (±0 reports). Lead species Dog (79). Lead co-reported drug Oclacitinib Maleate (27).

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 79
Cat 4
Cattle 1

Breeds Most Affected

Shepherd Dog - German 10
Retriever - Labrador 7
Chihuahua 5
Shepherd Dog - Australian 5
Crossbred Canine/dog 5
Shih Tzu 4
Domestic Shorthair 3
Terrier - West Highland White 3
Boxer (German Boxer) 3
Pug 3

Associated Drugs

Oclacitinib Maleate 27
Anti-Il31 Mab Mcs Lot #1283563 12
Afoxolaner 9
Pyrantel Pamoate;Sarolaner 6
Bedinvetmab 6
Milbemycin Oxime + Spinosad 5
Maropitant Citrate 5
Cefpodoxime Proxetil 5
Ivermectin 4
Carprofen 4
Tramadol 4
Glucosamine, Chondroitin, Unsaponifiables 4
Cyclosporine 4
Prednisone 4
Fluralaner Chew Tablets 4
Leptospira Canicola L-15 Strain C-51;Leptospira Grippotyphosa 1550 Lot 10005 Str 4
Ilunocitinib 4
Imidacloprid + Moxidectin 3
Betamethasone + Florfenicol + Terbinafine 3
Fluralaner 3

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Lichenification, 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 (84 here).

Similar death-coded share

Nearest other reactions by death-coded share (2.4% 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 Lichenification (#1479 of 2,481 by report volume); death-coded 2.4%. PlainBreed reaction plate · death-coded share stamp 2.4% · 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 →