Drug profile

The FDA adverse-event record for Diclofenac

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

#864 of 2,679
by report volume (all drugs)
82
adverse-event reports
8.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Diclofenac ranks #864 of 2679 by total reports (82) and #618 of 1130 by death-coded share (8.5%). 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)
#864
This drug, reports of 2679
#618
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. Diclofenac has 82 reports now versus 77 in that prior snapshot: 5 more (6.5%).

Report change
+5
Death-coded reports
+1
Death-coded share
+0.7 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 Diclofenac changes

Signature read: 82 reports place Diclofenac in the upper third of FDA AER volume (#864 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.
82
Total Reports
7
Deaths Reported
8.5%
Death-coded share of reports

Active Ingredients

Diclofenac

Administration Routes

OphthalmicUnknownTopicalOralIntraocular

Species Affected

Dog 68
Horse 6
Unknown 3
Cat 3
Human 2

Most Affected Breeds

Retriever - Labrador 6
Unknown 5
Schnauzer (unspecified) 4
Terrier - Jack Russell 4
Beagle 4
Horse (other) 3
Spitz - German Pomeranian 3
Bichon Frise 3
Domestic Shorthair 3
Shih Tzu 3

Most Reported Reactions

Vomiting 14
Diarrhoea 7
Lethargy (see also Central nervous system depression in 'Neurological') 7
Elevated blood urea nitrogen (BUN) 6
Death by euthanasia 6
Urinary tract infection 6
Decreased appetite 6
Elevated cholesterol (total) 5
Hyperphosphataemia 5
Blindness 5
Abnormal pupil light reflex 5
Eye disorder NOS (for Photophobia see neurological) 5

Outcome Breakdown

Recovered/Normal
30 (43.5%)
Ongoing
24 (34.8%)
Outcome Unknown
6 (8.7%)
Euthanized
5 (7.2%)
Died
2 (2.9%)
Recovered with Sequela
2 (2.9%)

Diclofenac: 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 Diclofenac, 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 Diclofenac (#864 of 2,679 by report volume); death-coded 8.5%. PlainBreed drug row · report volume stamp 82 · 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 →