Drug profile

The FDA adverse-event record for Tiamulin

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

111
adverse-event reports
65.8%
death-coded share
Pig
most-reported species
65
Death - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
111
Total Reports
73
Deaths Reported
65.8%
Death Rate

Active Ingredients

Tiamulin

Administration Routes

OralUnknown

Species Affected

Pig 80
Unknown 19
Chicken 4
Turkey 2
Cattle 2
Dog 2
Goat 1
Horse 1

Most Affected Breeds

Pig (unknown) 54
Unknown 19
Crossbred Porcine/Pig 16
Mixed (Pig) 4
Chicken (unknown) 3
Pig (other) 3
Turkey (unknown) 2
Commercial hybrid 2
Cattle (other) 1
Cattle (unknown) 1

Most Reported Reactions

Death 65
Vocalisation 16
Recumbency 15
Lateral recumbency 9
Lameness 9
Death by euthanasia 8
Diarrhoea 8
NT - Abnormal necropsy finding NOS 7
Lethargy (see also Central nervous system depression in 'Neurological') 7
Other abnormal test result NOS 7
Cough 6
Pneumonia 6

Outcome Breakdown

Died
70 (50.4%)
Outcome Unknown
33 (23.7%)
Recovered/Normal
13 (9.4%)
Ongoing
13 (9.4%)
Euthanized
10 (7.2%)

Tiamulin Adverse Event Insights

111 reports name Tiamulin; 73 recorded a death outcome (65.8% of reported events, not a population-level mortality rate). Active ingredient: Tiamulin. Administration routes: Oral, Unknown.

By species: Pig (80 reports), Unknown (19 reports), Chicken (4 reports). By breed: Pig (unknown) (54), Unknown (19), Crossbred Porcine/Pig (16).

Leading clinical signs: Death (65), Vocalisation (16), Recumbency (15), Lateral recumbency (9). Outcome, 139 coded reports: Died leads at 50.4%.

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.