Drug profile

The FDA adverse-event record for Supplement

169 FDA reports name Supplement, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#588 of 2,679
by report volume (all drugs)
169
adverse-event reports
11.8%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Supplement ranks #582 of 2679 by total reports (169) and #463 of 1130 by death-coded share (11.8%). 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)
#582
This drug, reports of 2679
#463
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. Supplement has 169 reports now versus 157 in that prior snapshot: 12 more (7.6%).

Report change
+12
Death-coded reports
+0
Death-coded share
−0.9 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 Supplement changes

Signature read: 169 reports place Supplement in the upper third of FDA AER volume (#588 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.
169
Total Reports
20
Deaths Reported
11.8%
Death-coded share of reports

Active Ingredients

Supplement

Administration Routes

UnknownOral

Species Affected

Dog 131
Cat 27
Human 8
Cattle 2
Horse 1

Most Affected Breeds

Domestic Shorthair 16
Retriever - Labrador 13
Spitz - German Pomeranian 9
Retriever - Golden 9
Unknown 9
Pit Bull 8
Spaniel - King Charles Cavalier 7
Shepherd Dog - German 6
Pug 6
Collie - Border 5

Most Reported Reactions

Vomiting 26
Behavioural disorder NOS 25
Diarrhoea 21
Lethargy (see also Central nervous system depression in Neurological) 18
Death by euthanasia 17
Seizure NOS 16
Other abnormal test result NOS 13
Polydipsia 12
Shaking 12
Weight loss 12
Vocalisation 11
Decreased appetite 11

Outcome Breakdown

Outcome Unknown
58 (34.1%)
Ongoing
47 (27.6%)
Recovered/Normal
44 (25.9%)
Euthanized
17 (10.0%)
Died
4 (2.4%)

Supplement: 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 Supplement, 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 Supplement (#588 of 2,679 by report volume); death-coded 11.8%. PlainBreed drug row · report volume stamp 169 · 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 →