Drug profile

The FDA adverse-event record for Thiabendazole, Dexamethasone, Neomycin Sulfate

171 FDA reports name Thiabendazole, Dexamethasone, Neomycin Sulfate, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#579 of 2,679
by report volume (all drugs)
171
adverse-event reports
17.0%
death-coded share
Cat
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Thiabendazole, Dexamethasone, Neomycin Sulfate ranks #576 of 2679 by total reports (171) and #307 of 1130 by death-coded share (17.0%). 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)
#576
This drug, reports of 2679
#307
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. Thiabendazole, Dexamethasone, Neomycin Sulfate has 171 reports now versus 167 in that prior snapshot: 4 more (2.4%).

Report change
+4
Death-coded reports
+0
Death-coded share
−0.4 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 Thiabendazole, Dexamethasone, Neomycin Sulfate changes

Signature read: death-coded report count at 29 is the most distinctive stamp on Thiabendazole, Dexamethasone, Neomycin 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.
171
Total Reports
29
Deaths Reported
17.0%
Death-coded share of reports

Active Ingredients

Thiabendazole, Dexamethasone, Neomycin Sulfate

Administration Routes

Auricular (Otic)UnknownTopicalOphthalmicOther

Species Affected

Cat 106
Dog 65

Most Affected Breeds

Domestic Shorthair 58
Domestic Mediumhair 9
Domestic Longhair 9
Retriever - Labrador 8
Cat (other) 8
Shih Tzu 6
Cat (unknown) 5
Terrier - Yorkshire 3
Persian 3
Manx 3

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 42
Other abnormal test result NOS 22
Vomiting 19
Death 16
Anorexia 16
Seizure NOS 14
Decreased appetite 14
Weight loss 13
Diarrhoea 12
Death by euthanasia 11
Not eating 11
Elevated alanine aminotransferase (ALT) 11

Outcome Breakdown

Ongoing
103 (59.9%)
Outcome Unknown
25 (14.5%)
Died
18 (10.5%)
Recovered/Normal
15 (8.7%)
Euthanized
11 (6.4%)

Thiabendazole, Dexamethasone, Neomycin Sulfate: 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 Thiabendazole, Dexamethasone, Neomycin Sulfate, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (17.0% here), distinct from the volume row.

What to do with this drug

  • Compare Thiabendazole, Dexamethasone, Neomycin Sulfate's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

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 Thiabendazole, Dexamethasone, Neomycin Sulfate (#579 of 2,679 by report volume); death-coded 17.0%. PlainBreed drug row · death-coded report count stamp 29 · 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 →