Febantel + Praziquantel + Pyrantel
625 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 | 625 |
| Reports involving death | 27 |
| Case-fatality rate (reported events) | 430.0% |
| Distinct species in reports | 4 |
| Distinct breeds in reports | 20 |
| Distinct reactions reported | 20 |
| Active ingredients on file | 3 |
Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER). Counts reflect voluntary reports only.
Febantel + Praziquantel + Pyrantel Adverse Event Insights
The FDA Center for Veterinary Medicine database currently holds 625 adverse event reports referencing Febantel + Praziquantel + Pyrantel, including 27 reports in which the animal died — a 430.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredients on file: Febantel, Praziquantel, Pyrantel. Reported administration routes include Oral, Unknown, Topical, Parenteral. 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 Febantel + Praziquantel + Pyrantel reports are Dog (607 reports), Unknown (9 reports), Cat (7 reports), with Dog accounting for the largest share. Within those species, Dog (unknown) (131), Greyhound (76), Crossbred Canine/dog (45) 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 Febantel + Praziquantel + Pyrantel are Vomiting (152), Lack of efficacy (endoparasite) - tapeworm (82), Lack of efficacy (endoparasite) - hookworm (73), Diarrhoea (64). Of the 616 reports with a coded outcome, Outcome Unknown is the leading category at 50.6%. 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 Febantel + Praziquantel + Pyrantel.
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.