Penicillin G Potassium
21 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 | 21 |
| Reports involving death | 3 |
| Case-fatality rate (reported events) | 1430.0% |
| Distinct species in reports | 5 |
| Distinct breeds in reports | 8 |
| 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.
Penicillin G Potassium Adverse Event Insights
The FDA Center for Veterinary Medicine database currently holds 21 adverse event reports referencing Penicillin G Potassium, including 3 reports in which the animal died — a 1430.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Penicillin G Potassium. Reported administration routes include Unknown, Intravenous, Subcutaneous. 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 Penicillin G Potassium reports are Unknown (7 reports), Dog (6 reports), Horse (4 reports), with Unknown accounting for the largest share. Within those species, Unknown (9), Quarter Horse (4), Terrier - Bull - American Pit (2) 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 Penicillin G Potassium are Containers, Damaged (2), Containers, Leaking (2), Seizure NOS (2), Cold feeling of extremity (2). Of the 14 reports with a coded outcome, Recovered/Normal is the leading category at 42.9%. 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 Penicillin G Potassium.
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.