Reaction profile

The FDA adverse-event record for congested mucous membrane

252 FDA adverse-event reports reference congested mucous membrane (VeDDRA 1007). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#933 of 2,481
by report volume (all reactions)
252
reports citing this reaction
29.0%
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. Congested mucous membrane has 252 reports now versus 244 in that prior snapshot: 8 more (3.3%).

Report change
+8
Death-coded reports
+1
Death-coded share
−0.5 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 Congested mucous membrane changes

FDA AER · VeDDRA plate

Code 1007 VOL-LOW

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

  • VOL-LOW 252 reports
  • DEATH-HOT 29.0%
  • MID-PACK #933/2481
  • PHOTO-FINISH Inappropriate elimina…
  • SPECIES-DOG Dog · 194
  • DRUG-LEAD Milbemycin Oxime… · 31
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Inappropriate elimination NOS (±0 reports)

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

Report-volume neighbourhood around Congested mucous membrane

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

Vomiting · highest174348Cardiorespiratory arr… · near253Congested mucous memb… · thi…252Inappropriate elimina… · near252Gastric ulceration NOS · near251Injected sclera · near251Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Congested mucous membrane

Congested mucous membrane: high death-coded share in the FDA AER plate

Signature read: 73 death-coded reports is a heavy tail count for Congested mucous membrane in the CVM extract. Report volume sits in the middle third of the reaction corpus. Death-coded share is upper-third: 73 of 252 reports (29.0% of named reports). Nearest volume peer: Inappropriate elimination NOS (±0 reports). Lead species Dog (194). Lead co-reported drug Milbemycin Oxime + Spinosad (31).

Read these counts as reporting volume, not risk: per our methodology, A high death-coded share in FDA filings does not prove causation; co-reporting is voluntary temporal association only. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 194
Cat 29
Horse 25
Cattle 2
Donkey 1
Human 1

Breeds Most Affected

Domestic Shorthair 23
Retriever - Labrador 15
Chihuahua 13
Retriever - Golden 12
Boxer (German Boxer) 11
Crossbred Canine/dog 10
Quarter Horse 10
Terrier - Bull - American Pit 10
Terrier - Yorkshire 9
Dachshund (unspecified) 7

Associated Drugs

Milbemycin Oxime + Spinosad 31
Moxidectin 31
Maropitant Citrate 26
Deracoxib 12
Carprofen 11
Diphenhydramine 9
Dexmedetomidine Hydrochloride 9
Gabapentin 9
Ceftiofur Crystalline Free Acid 8
Isoflurane 8
Pyrantel Pamoate;Sarolaner 8
Tramadol 7
Rabies Vaccine 7
Velagliflozin Proline Monohydrate 7
Dexamethasone 6
Famotidine 6
Afoxolaner 6
Fluralaner Chew Tablets 6
Anti-Il31 Mab Mcs Lot #1283563 6
Cefovecin 6

Nationwide reactions with similar profiles

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

Similar death-coded share

Nearest other reactions by death-coded share (29.0% 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 Congested mucous membrane (#933 of 2,481 by report volume); death-coded 29.0%. PlainBreed reaction plate · death-coded report count stamp 73 · 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 →