Drug profile

The FDA adverse-event record for Unspecified Vaccines

229 FDA reports name Unspecified Vaccines, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#509 of 2,679
by report volume (all drugs)
229
adverse-event reports
9.2%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Unspecified Vaccines ranks #506 of 2679 by total reports (229) and #586 of 1130 by death-coded share (9.2%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#506
This drug, reports of 2679
#586
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

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. Unspecified Vaccines has 229 reports now versus 229 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
+0.0 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 Unspecified Vaccines changes

Signature read: 229 reports place Unspecified Vaccines in the upper third of FDA AER volume (#509 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
229
Total Reports
21
Deaths Reported
9.2%
Death-coded share of reports

Active Ingredients

Unspecified Vaccines

Administration Routes

UnknownSubcutaneousTopicalParenteral

Species Affected

Dog 177
Cat 50
Cattle 1
Horse 1

Most Affected Breeds

Domestic Shorthair 35
Retriever - Labrador 29
Retriever - Golden 13
Shih Tzu 9
Chihuahua 8
Crossbred Canine/dog 8
Shepherd Dog - German 7
Dog (unknown) 6
Terrier - Yorkshire 5
Dachshund (unspecified) 5

Most Reported Reactions

Vomiting 58
Diarrhoea 38
Lethargy (see also Central nervous system depression in 'Neurological') 25
Seizure NOS 18
Anorexia 17
Lethargy (see also Central nervous system depression in Neurological) 16
Decreased appetite 15
Emesis (multiple) 13
Death by euthanasia 12
Weight loss 12
Fever 11
Behavioural disorder NOS 11

Outcome Breakdown

Outcome Unknown
80 (34.9%)
Recovered/Normal
74 (32.3%)
Ongoing
53 (23.1%)
Euthanized
12 (5.2%)
Died
9 (3.9%)
Recovered with Sequela
1 (0.4%)

Unspecified Vaccines: high report volume in the FDA AER row

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Unspecified Vaccines, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

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 Unspecified Vaccines (#509 of 2,679 by report volume); death-coded 9.2%. PlainBreed drug row · report volume stamp 229 · 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 →