Drug profile

The FDA adverse-event record for Tris-Edta

89 FDA reports name Tris-Edta, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#824 of 2,679
by report volume (all drugs)
89
adverse-event reports
7.9%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Tris-Edta ranks #821 of 2679 by total reports (89) and #649 of 1130 by death-coded share (7.9%). 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)
#821
This drug, reports of 2679
#649
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. Tris-Edta has 89 reports now versus 87 in that prior snapshot: 2 more (2.3%).

Report change
+2
Death-coded reports
+0
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 Tris-Edta changes

Signature read: 89 reports place Tris-Edta in the upper third of FDA AER volume (#824 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.
89
Total Reports
7
Deaths Reported
7.9%
Death-coded share of reports

Active Ingredients

Tris-Edta

Administration Routes

Auricular (Otic)UnknownOtherTopicalOral

Species Affected

Dog 80
Cat 9

Most Affected Breeds

Retriever - Golden 12
Retriever - Labrador 8
Shih Tzu 8
Domestic Shorthair 7
Pit Bull 6
Shepherd Dog - German 4
Beagle 3
Bulldog 2
Maltese 2
Spaniel - Cocker American 2

Most Reported Reactions

Lack of efficacy - NOS 26
Vomiting 11
Not eating 11
Head tilt - ear disorder 10
Ear discharge 9
Decreased appetite 9
Nystagmus 8
Lethargy (see also Central nervous system depression in Neurological) 8
Behavioural disorder NOS 7
Loss of hearing 7
Death by euthanasia 7
Diarrhoea 7

Outcome Breakdown

Outcome Unknown
40 (44.9%)
Ongoing
31 (34.8%)
Euthanized
7 (7.9%)
Recovered/Normal
6 (6.7%)
Recovered with Sequela
5 (5.6%)

Tris-Edta: 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 Tris-Edta, 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 Tris-Edta (#824 of 2,679 by report volume); death-coded 7.9%. PlainBreed drug row · report volume stamp 89 · 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 →