Reaction profile

The FDA adverse-event record for cyst nos

127 FDA adverse-event reports reference cyst nos (VeDDRA 2884). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1273 of 2,481
by report volume (all reactions)
127
reports citing this reaction
11.8%
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. Cyst NOS has 127 reports now versus 117 in that prior snapshot: 10 more (8.5%).

Report change
+10
Death-coded reports
+1
Death-coded share
−0.2 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 Cyst NOS changes

FDA AER · VeDDRA plate

Code 2884 VOL-LOW

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

  • VOL-LOW 127 reports
  • DEATH-ELEV 11.8%
  • MID-PACK #1273/2481
  • PHOTO-FINISH HYPERBILIRUBINEMIA
  • SPECIES-DOG Dog · 110
  • DRUG-LEAD Oclacitinib Malea… · 37
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: HYPERBILIRUBINEMIA (±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 Cyst NOS

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

Vomiting · highest174348Cyst NOS · this reaction127HYPERBILIRUBINEMIA · near127INEFFECTIVE, WEIGHT L… · near127Low pancreatic enzymes · near127Mammary gland neoplas… · near127Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Cyst NOS

What the FDA AER plate says about Cyst NOS

Signature read: death-coded share at 11.8% is the most distinctive outcome stamp on Cyst NOS. Report volume sits in the middle third of the reaction corpus. 15 of 127 reports were death-coded (11.8% of named reports, not a population mortality rate). Nearest volume peer: HYPERBILIRUBINEMIA (±0 reports). Lead species Dog (110). Lead co-reported drug Oclacitinib Maleate (37).

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 110
Cat 16
Horse 1

Breeds Most Affected

Retriever - Labrador 17
Domestic Shorthair 11
Shepherd Dog - German 9
Retriever - Golden 8
Dog (unknown) 7
Crossbred Canine/dog 7
Pit Bull 5
Terrier - Bull - American Pit 4
Shih Tzu 3
Spitz - American Eskimo Dog 3

Associated Drugs

Oclacitinib Maleate 37
Bedinvetmab 18
Ilunocitinib 14
Milbemycin Oxime + Praziquantel 13
Lotilaner 11
Gabapentin 10
Carprofen 9
Anti-Il31 Mab Mcs Lot #1283563 9
Frunevetmab 7
Bexagliflozin 6
Rabies Vaccine 5
Grapiprant 5
Maropitant Citrate 5
Pyrantel Pamoate;Sarolaner 5
Butorphanol 5
Fluralaner 4
Melarsomine Dihydrochloride 4
Fluralaner 13.64% 12-Week Chew 4
Enrofloxacin 4
Prednisolone 4

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Cyst NOS, 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 (11.8% 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 Cyst NOS (#1273 of 2,481 by report volume); death-coded 11.8%. PlainBreed reaction plate · death-coded share stamp 11.8% · 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 →