Drug profile

The FDA adverse-event record for Gentamicin Sulfate

170 FDA reports name Gentamicin Sulfate, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#580 of 2,679
by report volume (all drugs)
170
adverse-event reports
13.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Gentamicin Sulfate ranks #580 of 2679 by total reports (170) and #412 of 1130 by death-coded share (13.5%). 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)
#580
This drug, reports of 2679
#412
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. Gentamicin Sulfate has 170 reports now versus 169 in that prior snapshot: 1 more (0.6%).

Report change
+1
Death-coded reports
+0
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 Gentamicin Sulfate changes

Signature read: death-coded report count at 23 is the most distinctive stamp on Gentamicin Sulfate'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.
170
Total Reports
23
Deaths Reported
13.5%
Death-coded share of reports

Active Ingredients

Gentamicin Sulfate

Administration Routes

UnknownTopicalIntravenousAuricular (Otic)OphthalmicSubcutaneousIntraocularParenteralNasalOral

Species Affected

Dog 80
Unknown 40
Horse 34
Cat 12
Rat 2
Human 1
Pig 1

Most Affected Breeds

Unknown 52
Retriever - Labrador 12
Domestic Shorthair 10
Dog (unknown) 6
Terrier - Yorkshire 6
Maltese 6
Quarter Horse 6
Horse (unknown) 6
Warmblood (unspecified) 6
Retriever - Golden 4

Most Reported Reactions

Vomiting 19
Death 15
Lethargy (see also Central nervous system depression in 'Neurological') 14
Other abnormal test result NOS 14
Administration device NOS, malfunction 12
Anorexia 11
Diarrhoea 11
Lack of efficacy - NOS 11
Weight loss 10
Colic 10
Behavioural disorder NOS 9
Decreased appetite 9

Outcome Breakdown

Recovered/Normal
46 (34.8%)
Ongoing
31 (23.5%)
Outcome Unknown
29 (22.0%)
Died
16 (12.1%)
Euthanized
7 (5.3%)
Recovered with Sequela
3 (2.3%)

Gentamicin Sulfate: 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 Gentamicin Sulfate, 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 Gentamicin Sulfate (#580 of 2,679 by report volume); death-coded 13.5%. PlainBreed drug row · death-coded report count stamp 23 · 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 →