Drug profile

The FDA adverse-event record for Hyaluronic Acid

282 FDA reports name Hyaluronic Acid, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#443 of 2,679
by report volume (all drugs)
282
adverse-event reports
3.5%
death-coded share
Unknown
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Hyaluronic Acid ranks #442 of 2679 by total reports (282) and #880 of 1130 by death-coded share (3.5%). 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)
#442
This drug, reports of 2679
#880
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. Hyaluronic Acid has 282 reports now versus 280 in that prior snapshot: 2 more (0.7%).

Report change
+2
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 Hyaluronic Acid changes

Signature read: 282 reports place Hyaluronic Acid in the upper third of FDA AER volume (#443 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.
282
Total Reports
10
Deaths Reported
3.5%
Death-coded share of reports

Active Ingredients

Hyaluronic Acid

Administration Routes

UnknownIntra-ArticularOphthalmicOralIntraocularParenteral

Species Affected

Unknown 140
Dog 90
Horse 39
Cat 9
Human 2
Guinea Pig 1
Other 1

Most Affected Breeds

Unknown 144
Quarter Horse 17
Crossbred Canine/dog 12
Shih Tzu 9
Chihuahua 7
Retriever - Labrador 6
Crossbred Equine/horse 5
Domestic Shorthair 5
Warmblood (unspecified) 5
Pug 5

Most Reported Reactions

Ocular discharge 19
Corneal ulcer 19
Underfilling, Bottles 16
Eye pain 15
Solution, Abnormal 15
Squinting 14
Other abnormal test result NOS 14
Behavioural disorder NOS 14
Diarrhoea 13
Dispenser, Abnormal 13
Lethargy (see also Central nervous system depression in 'Neurological') 13
Applicator, Abnormal 13

Outcome Breakdown

Outcome Unknown
56 (39.2%)
Recovered/Normal
55 (38.5%)
Ongoing
16 (11.2%)
Euthanized
6 (4.2%)
Recovered with Sequela
6 (4.2%)
Died
4 (2.8%)

Hyaluronic Acid: low death-coded share 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 Hyaluronic Acid, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (282 here).

Similar death-coded share

Nearest other drugs by death-coded share (3.5% 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 Hyaluronic Acid (#443 of 2,679 by report volume); death-coded 3.5%. PlainBreed drug row · report volume stamp 282 · 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 →