Tiamulin Hydrogen Fumarate
56 adverse event reports submitted to the FDA
Active Ingredients
Administration Routes
Species Affected
Most Affected Breeds
Most Reported Reactions
Outcome Breakdown
Data Summary
| Metric | Value |
|---|---|
| Total adverse event reports | 56 |
| Reports involving death | 30 |
| Case-fatality rate (reported events) | 5360.0% |
| Distinct species in reports | 4 |
| Distinct breeds in reports | 6 |
| Distinct reactions reported | 20 |
| Active ingredients on file | 1 |
Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER). Counts reflect voluntary reports only.
Tiamulin Hydrogen Fumarate Adverse Event Insights
The FDA Center for Veterinary Medicine database currently holds 56 adverse event reports referencing Tiamulin Hydrogen Fumarate, including 30 reports in which the animal died — a 5360.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Tiamulin Hydrogen Fumarate. Reported administration routes include Oral, Unknown. These numbers reflect voluntary submissions from pet owners, veterinarians, and manufacturers and therefore under-represent mild events and over-represent severe ones — a pattern the FDA has documented repeatedly for pharmacovigilance datasets.
The species most frequently named in Tiamulin Hydrogen Fumarate reports are Pig (39 reports), Unknown (15 reports), Other Birds (1 reports), with Pig accounting for the largest share. Within those species, Crossbred Porcine/Pig (19), Unknown (17), Pig (unknown) (13) appear most often — though breed popularity and ownership density shape these counts as much as any drug-specific sensitivity. This distribution matters because the same active ingredient can behave very differently across body sizes, ages, and species physiology.
The most commonly reported clinical signs associated with Tiamulin Hydrogen Fumarate are Death (21), Lack of efficacy (bacteria) - NOS (16), NT - Abnormal necropsy finding NOS (9), Product Defect, General (7). Of the 56 reports with a coded outcome, Died is the leading category at 46.4%. Because FDA adverse event data describes correlation rather than causation, these figures are best used to frame informed questions with a veterinarian and to compare reporting patterns across related products — not as a standalone safety verdict on Tiamulin Hydrogen Fumarate.
Source: FDA Center for Veterinary Medicine — Adverse Event Reports FDA Center for Veterinary Medicine — Adverse Event Reports Data reflects voluntary submissions and may not represent actual incidence rates
Read our methodology — how this data is sourced, computed, and verified.