Drug profile

The FDA adverse-event record for Tildipirosin

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

#537 of 2,679
by report volume (all drugs)
197
adverse-event reports
67.0%
death-coded share
Cattle
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Tildipirosin ranks #537 of 2679 by total reports (197) and #35 of 1130 by death-coded share (67.0%). 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)
#537
This drug, reports of 2679
#35
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. Tildipirosin has 197 reports now versus 196 in that prior snapshot: 1 more (0.5%).

Report change
+1
Death-coded reports
+0
Death-coded share
−0.3 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 Tildipirosin changes

Signature read: Tildipirosin's 67.0% 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.
197
Total Reports
132
Deaths Reported
67.0%
Death-coded share of reports

Active Ingredients

Tildipirosin

Administration Routes

SubcutaneousUnknownParenteralOtherTopicalIntramuscularOral

Species Affected

Cattle 162
Unknown 21
Human 12
Pig 1
Other Deer 1

Most Affected Breeds

Holstein-Friesian also known as Holstein 61
Crossbred Bovine/Cattle 55
Unknown 34
Cattle (unknown) 20
Aberdeen Angus 14
Cattle (other) 5
Mixed (Cattle) 3
Shorthorn (unspecified) 2
Hereford cattle 1
Crossbred Porcine/Pig 1

Most Reported Reactions

Lack of efficacy (bacteria) - NOS 119
DEATH-TREATMENT FAILURE 70
CULTURE/TITER DATA ABNORMAL 63
Death 60
PR-LUNG(S), LESION(S) 39
Vials, Damaged 16
Unclassifiable adverse event 14
Containers, Abnormal 13
Injection site swelling 12
Death by euthanasia 11
Respiratory tract disorder NOS 10
Diarrhoea 10

Outcome Breakdown

Died
132 (78.6%)
Outcome Unknown
16 (9.5%)
Ongoing
9 (5.4%)
Recovered/Normal
9 (5.4%)
Euthanized
2 (1.2%)

Tildipirosin: 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 Tildipirosin, 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 Tildipirosin (#537 of 2,679 by report volume); death-coded 67.0%. PlainBreed drug row · death-coded share stamp 67.0% · 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 →