Drug profile

The FDA adverse-event record for Tobramycin

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

#566 of 2,679
by report volume (all drugs)
179
adverse-event reports
17.3%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Tobramycin ranks #566 of 2679 by total reports (179) and #290 of 1130 by death-coded share (17.3%). 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)
#566
This drug, reports of 2679
#290
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. Tobramycin has 179 reports now versus 174 in that prior snapshot: 5 more (2.9%).

Report change
+5
Death-coded reports
+0
Death-coded share
−0.5 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 Tobramycin changes

Signature read: death-coded report count at 31 is the most distinctive stamp on Tobramycin'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.
179
Total Reports
31
Deaths Reported
17.3%
Death-coded share of reports

Active Ingredients

Tobramycin

Administration Routes

OphthalmicUnknownIntraocularTopicalOtherSubcutaneous

Species Affected

Dog 115
Cat 61
Rabbit 1
Monkey 1
Unknown 1

Most Affected Breeds

Domestic Shorthair 40
Retriever - Labrador 11
Shih Tzu 11
Chihuahua 10
Domestic Longhair 9
Domestic Mediumhair 6
Lhasa Apso 5
Boxer (German Boxer) 4
Bulldog 4
Retriever - Golden 4

Most Reported Reactions

Corneal ulcer 39
Lethargy (see also Central nervous system depression in 'Neurological') 35
Ocular discharge 29
Other abnormal test result NOS 28
Anorexia 27
Corneal disorder NOS 25
Neutrophilia 21
Vomiting 21
Death by euthanasia 20
Keratoconjunctivitis sicca 18
Weight loss 16
Lack of efficacy - NOS 16

Outcome Breakdown

Ongoing
73 (41.0%)
Outcome Unknown
37 (20.8%)
Recovered/Normal
31 (17.4%)
Euthanized
21 (11.8%)
Died
10 (5.6%)
Recovered with Sequela
6 (3.4%)

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

Similar death-coded share

Nearest other drugs by death-coded share (17.3% 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 Tobramycin (#566 of 2,679 by report volume); death-coded 17.3%. PlainBreed drug row · death-coded report count stamp 31 · 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 →