Drug profile

The FDA adverse-event record for Bacitracin Methylene Disalicylate

51 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Bacitracin Methylene Disalicylate. Species, reactions, and outcomes follow.

#1099 of 2,679
by report volume (all drugs)
51
adverse-event reports
49.0%
death-coded share
Chicken
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Bacitracin Methylene Disalicylate ranks #1098 of 2679 by total reports (51) and #63 of 1130 by death-coded share (49.0%). 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)
#1098
This drug, reports of 2679
#63
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. Bacitracin Methylene Disalicylate has 51 reports now versus 51 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
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 Bacitracin Methylene Disalicylate changes

Signature read: Bacitracin Methylene Disalicylate's 49.0% death-coded share is among the highest in the openFDA drug corpus.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
51
Total Reports
25
Deaths Reported
49.0%
Death-coded share of reports

Active Ingredients

Bacitracin Methylene Disalicylate

Administration Routes

OralUnknownRespiratory (Inhalation)Topical

Species Affected

Chicken 19
Unknown 13
Turkey 5
Pig 4
Human 4
Partridge 1
Ostrich 1
Cattle 1
Other Birds 1
Quail 1

Most Affected Breeds

Unknown 19
Chicken (unknown) 9
Turkey (unknown) 5
Chicken (other) 5
Crossbred Porcine/Pig 4
Chicken (unspecified) 3
Partridge 2
Mixed (Chicken) 1
Cattle (other) 1
Other Birds (other) 1

Most Reported Reactions

Death 20
Lack of efficacy - NOS 6
Lack of efficacy (protozoa) - Coccidia 6
Increased mortality rate 5
INEFFECTIVE, COCCIDIA 5
Accidental exposure 4
Uncoded sign 4
Enteritis 4
Recumbency 3
Unclassifiable adverse event 3
Product Defect, General 3
No sign 3

Outcome Breakdown

Died
25 (62.5%)
Outcome Unknown
13 (32.5%)
Recovered/Normal
2 (5.0%)

Bacitracin Methylene Disalicylate: 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.

Nationwide drugs with similar profiles

Two openFDA-derived peer sets for Bacitracin Methylene Disalicylate, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (51 here).

Similar death-coded share

Nearest other drugs by death-coded share (49.0% here), distinct from the volume row.

What to do with this drug

  • Compare Bacitracin Methylene Disalicylate'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 Bacitracin Methylene Disalicylate (#1099 of 2,679 by report volume); death-coded 49.0%. PlainBreed drug row · death-coded share stamp 49.0% · 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 →