Drug profile

Here's what the FDA CVM extract says about Eprinomectin + Esafoxolaner + Praziquantel

The CVM extract lists 3,101 reports for Eprinomectin + Esafoxolaner + Praziquantel, a high-volume entry. Species, reactions, and outcomes are below.

#72 of 2,679
by report volume (all drugs)
3,101
adverse-event reports
7.3%
death-coded share
Cat
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Eprinomectin + Esafoxolaner + Praziquantel ranks #72 of 2679 by total reports (3,101) and #680 of 1130 by death-coded share (7.3%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#72
This drug, reports of 2679
#680
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Eprinomectin + Esafoxolaner + Praziquantel has 3,101 reports now versus 2,916 in that prior snapshot: 185 more (6.3%).

Report change
+185
Death-coded reports
+14
Death-coded share
+0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

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Signature read: 3,101 reports place Eprinomectin + Esafoxolaner + Praziquantel in the upper third of FDA AER volume (#72 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
3,101
Total Reports
226
Deaths Reported
7.3%
Death-coded share of reports

Active Ingredients

EprinomectinEsafoxolanerPraziquantel

Administration Routes

TopicalUnknownOralOphthalmicSubcutaneousIntraocularTransdermalTransplacentalUnassigned

Species Affected

Cat 2,922
Unknown 122
Human 42
Dog 14
Bobcat 1

Most Affected Breeds

Domestic Shorthair 1,825
Cat (unknown) 399
Domestic Longhair 213
Domestic Mediumhair 179
Unknown 167
Siamese 57
Maine Coon 43
Ragdoll 29
Mixed (Cat) 27
Crossbred Feline/cat 21

Most Reported Reactions

Lethargy (see also Central nervous system depression in Neurological) 472
Vomiting 382
Hypersalivation 269
Application site hair loss 269
Foaming at the mouth 243
Drooling 205
Accidental exposure 191
Lack of efficacy (ectoparasite) - flea 190
Ataxia 186
Not eating 183
Lack of efficacy (endoparasite) - roundworm NOS 169
Lack of efficacy (endoparasite) - tapeworm 155

Outcome Breakdown

Outcome Unknown
1,698 (56.8%)
Recovered/Normal
837 (28.0%)
Ongoing
225 (7.5%)
Euthanized
114 (3.8%)
Died
113 (3.8%)
Recovered with Sequela
4 (0.1%)

Eprinomectin + Esafoxolaner + Praziquantel: high report volume in the FDA AER row

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Eprinomectin + Esafoxolaner + Praziquantel, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Where to go from here

  • Compare Eprinomectin + Esafoxolaner + Praziquantel's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Before drawing conclusions from this number, read why death-coded share is not the same thing as a mortality rate. Understanding adverse events
  • The full drug directory has report counts for every product we track. All drugs

Filing a report never proves Eprinomectin + Esafoxolaner + Praziquantel caused the reaction -- talk to a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Eprinomectin + Esafoxolaner + Praziquantel (#72 of 2,679 by report volume); death-coded 7.3%. PlainBreed drug row · report volume stamp 3,101 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →