Drug profile

The FDA adverse-event record for Tilmicosin Phosphate

347 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Tilmicosin Phosphate. See the species affected, top reactions, and outcomes below.

347
adverse-event reports
23.3%
death-coded share
Human
most-reported species
190
Accidental exposure - top reaction
Verify with FDA CVM →
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
347
Total Reports
81
Deaths Reported
23.3%
Death Rate

Active Ingredients

Tilmicosin Phosphate

Administration Routes

IntramuscularOralSubcutaneousUnknownParenteralCutaneousTopicalIntradermalOphthalmicRespiratory (Inhalation)

Species Affected

Human 208
Cattle 108
Pig 17
Goat 6
Unknown 3
Sheep 3
Rabbit 1
Dog 1

Most Affected Breeds

Unknown 211
Cattle (unknown) 41
Crossbred Bovine/Cattle 24
Pig (unknown) 15
Holstein-Friesian also known as Holstein 15
Aberdeen Angus 11
Cattle (other) 9
Mixed (Cattle) 4
Goat (unknown) 3
Boer 2

Most Reported Reactions

Accidental exposure 190
Unclassifiable adverse event 95
Death 75
Lack of efficacy (bacteria) - NOS 31
Injection site bleeding 28
Injection site pain 27
Injection site swelling 27
Nausea 18
Headache 17
Bad taste 17
Tachycardia 14
Hypertension 14

Outcome Breakdown

Recovered/Normal
118 (42.1%)
Died
78 (27.9%)
Outcome Unknown
65 (23.2%)
Recovered with Sequela
15 (5.4%)
Euthanized
4 (1.4%)

Tilmicosin Phosphate Adverse Event Insights

347 reports name Tilmicosin Phosphate; 81 recorded a death outcome (23.3% of reported events, not a population-level mortality rate). Active ingredient: Tilmicosin Phosphate. Administration routes: Intramuscular, Oral, Subcutaneous, Unknown.

By species: Human (208 reports), Cattle (108 reports), Pig (17 reports). By breed: Unknown (211), Cattle (unknown) (41), Crossbred Bovine/Cattle (24).

Leading clinical signs: Accidental exposure (190), Unclassifiable adverse event (95), Death (75), Lack of efficacy (bacteria) - NOS (31). Outcome, 280 coded reports: Recovered/Normal leads at 42.1%.

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.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.