Drug profile

The FDA adverse-event record for Dinotefuran + Pyriproxyfen

243 FDA reports name Dinotefuran + Pyriproxyfen, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#488 of 2,679
by report volume (all drugs)
243
adverse-event reports
3.7%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Dinotefuran + Pyriproxyfen ranks #488 of 2679 by total reports (243) and #865 of 1130 by death-coded share (3.7%). 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)
#488
This drug, reports of 2679
#865
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. Dinotefuran + Pyriproxyfen has 243 reports now versus 242 in that prior snapshot: 1 more (0.4%).

Report change
+1
Death-coded reports
+1
Death-coded share
+0.4 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.

Subscribe to Dinotefuran + Pyriproxyfen changes

Signature read: 243 reports place Dinotefuran + Pyriproxyfen in the upper third of FDA AER volume (#488 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.
243
Total Reports
9
Deaths Reported
3.7%
Death-coded share of reports

Active Ingredients

DinotefuranDinotefuran + PyriproxyfenPyriproxyfen

Administration Routes

TopicalUnknownOral

Species Affected

Dog 222
Cat 20
Unknown 1

Most Affected Breeds

Retriever - Labrador 28
Domestic Shorthair 13
Retriever - Golden 11
Pit Bull 11
Boxer (German Boxer) 10
Collie - Border 9
Chihuahua 8
Terrier (unspecified) 8
Crossbred Canine/dog 8
Terrier - Yorkshire 7

Most Reported Reactions

Emesis 59
Vomiting 46
Lethargy (see also Central nervous system depression in 'Neurological') 41
Diarrhoea 18
Lack of efficacy (ectoparasite) - flea 14
Emesis (multiple) 13
Lack of efficacy - NOS 12
Other abnormal test result NOS 10
Behavioural disorder NOS 10
Weight loss 9
Seizure NOS 8
INEFFECTIVE, HOOKS 8

Outcome Breakdown

Recovered/Normal
135 (55.8%)
Outcome Unknown
75 (31.0%)
Ongoing
12 (5.0%)
Recovered with Sequela
11 (4.5%)
Euthanized
7 (2.9%)
Died
2 (0.8%)

Dinotefuran + Pyriproxyfen: low death-coded share 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 Dinotefuran + Pyriproxyfen, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Dinotefuran + Pyriproxyfen's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult 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 Dinotefuran + Pyriproxyfen (#488 of 2,679 by report volume); death-coded 3.7%. PlainBreed drug row · report volume stamp 243 · 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 →