Lufenuron + Milbemycin Oxime + Praziquantel
2,444 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 | 2,444 |
| Reports involving death | 26 |
| Case-fatality rate (reported events) | 110.0% |
| Distinct species in reports | 3 |
| 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.
Lufenuron + Milbemycin Oxime + Praziquantel Adverse Event Insights
The FDA Center for Veterinary Medicine database currently holds 2,444 adverse event reports referencing Lufenuron + Milbemycin Oxime + Praziquantel, including 26 reports in which the animal died — a 110.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredients on file: Lufenuron, Milbemycin Oxime, Praziquantel. Reported administration routes include Oral, Unknown, Ophthalmic, Respiratory (Inhalation). 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 Lufenuron + Milbemycin Oxime + Praziquantel reports are Dog (2,296 reports), Unknown (146 reports), Human (2 reports), with Dog accounting for the largest share. Within those species, Retriever - Labrador (425), Unknown (148), Dog (unknown) (138) 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 Lufenuron + Milbemycin Oxime + Praziquantel are INEFFECTIVE, HOOKS (528), Lack of efficacy (endoparasite) - heartworm (422), Vomiting (382), Lack of efficacy (heartworm) (199). Of the 2,299 reports with a coded outcome, Outcome Unknown is the leading category at 72.2%. 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 Lufenuron + Milbemycin Oxime + Praziquantel.
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.