Drug profile

The FDA adverse-event record for Trazodone

1,409 FDA reports name Trazodone, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#140 of 2,679
by report volume (all drugs)
1,409
adverse-event reports
11.6%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Trazodone ranks #140 of 2679 by total reports (1,409) and #471 of 1130 by death-coded share (11.6%). 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)
#140
This drug, reports of 2679
#471
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. Trazodone has 1,409 reports now versus 1,343 in that prior snapshot: 66 more (4.9%).

Report change
+66
Death-coded reports
+9
Death-coded share
+0.1 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 Trazodone changes

Signature read: death-coded report count at 164 is the most distinctive stamp on Trazodone's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
1,409
Total Reports
164
Deaths Reported
11.6%
Death-coded share of reports

Active Ingredients

Trazodone

Administration Routes

OralUnknownSubcutaneousIntravenousOtherOphthalmicTopical

Species Affected

Dog 1,387
Cat 15
Human 6
Other 1

Most Affected Breeds

Retriever - Labrador 199
Crossbred Canine/dog 86
Shepherd Dog - German 69
Retriever - Golden 67
Terrier - Bull - American Pit 55
Beagle 41
Chihuahua 39
Terrier (unspecified) 36
Siberian Husky 34
Boxer (German Boxer) 32

Most Reported Reactions

Vomiting 289
Diarrhoea 180
Lethargy (see also Central nervous system depression in Neurological) 148
Decreased appetite 106
Death by euthanasia 105
Not eating 103
Seizure NOS 89
Lethargy (see also Central nervous system depression in 'Neurological') 84
Panting 83
Lack of efficacy - NOS 82
Elevated alanine aminotransferase (ALT) 78
Weight loss 72

Outcome Breakdown

Ongoing
555 (39.4%)
Recovered/Normal
347 (24.7%)
Outcome Unknown
336 (23.9%)
Euthanized
107 (7.6%)
Died
57 (4.1%)
Recovered with Sequela
5 (0.4%)

Trazodone: 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 Trazodone, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (11.6% here), distinct from the volume row.

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 Trazodone (#140 of 2,679 by report volume); death-coded 11.6%. PlainBreed drug row · death-coded report count stamp 164 · 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 →