Ivermectin(1%)/Clorsulon(10%) Injection
304 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 | 304 |
| Reports involving death | 24 |
| Case-fatality rate (reported events) | 790.0% |
| Distinct species in reports | 9 |
| Distinct breeds in reports | 20 |
| 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.
Ivermectin(1%)/Clorsulon(10%) Injection Adverse Event Insights
The FDA Center for Veterinary Medicine database currently holds 304 adverse event reports referencing Ivermectin(1%)/Clorsulon(10%) Injection, including 24 reports in which the animal died — a 790.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Ivermectin(1%)/Clorsulon(10%) Injection. Reported administration routes include Unknown, Subcutaneous, Oral, Intramuscular. 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 Ivermectin(1%)/Clorsulon(10%) Injection reports are Unknown (200 reports), Cattle (69 reports), Dog (20 reports), with Unknown accounting for the largest share. Within those species, Unknown (212), Cattle (unknown) (24), Crossbred Bovine/Cattle (11) 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 Ivermectin(1%)/Clorsulon(10%) Injection are Uncoded sign (123), Caps, Abnormal (98), Stopper, abnormal (54), Closure, Abnormal (20). Of the 116 reports with a coded outcome, Outcome Unknown is the leading category at 59.5%. 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 Ivermectin(1%)/Clorsulon(10%) Injection.
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.