Drug profile

The FDA adverse-event record for Flea Product (Unknown)

668 FDA reports name Flea Product (Unknown), a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#247 of 2,679
by report volume (all drugs)
668
adverse-event reports
2.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Flea Product (Unknown) ranks #247 of 2679 by total reports (668) and #948 of 1130 by death-coded share (2.5%). 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)
#247
This drug, reports of 2679
#948
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. Flea Product (Unknown) has 668 reports now versus 667 in that prior snapshot: 1 more (0.1%).

Report change
+1
Death-coded reports
+0
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.

Subscribe to Flea Product (Unknown) changes

Signature read: 668 reports place Flea Product (Unknown) in the upper third of FDA AER volume (#247 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.
668
Total Reports
17
Deaths Reported
2.5%
Death-coded share of reports

Active Ingredients

Flea Product (Unknown)

Administration Routes

TopicalUnknownOtherOralCutaneousImmersion

Species Affected

Dog 494
Cat 173
Unknown 1

Most Affected Breeds

Domestic Shorthair 82
Retriever - Labrador 38
Chihuahua 38
Crossbred Canine/dog 32
Shih Tzu 29
Cat (unknown) 28
Dog (unknown) 27
Domestic Longhair 25
Terrier - Yorkshire 25
Shepherd Dog - German 17

Most Reported Reactions

Lack of efficacy (ectoparasite) - flea 240
Lack of efficacy (flea) 97
Lethargy (see also Central nervous system depression in 'Neurological') 67
Vomiting 66
Emesis 44
Lack of efficacy - NOS 44
Diarrhoea 31
Itching 30
Scratching 29
Behavioural disorder NOS 26
Vocalisation 26
Hyperactivity 22

Outcome Breakdown

Outcome Unknown
413 (61.9%)
Recovered/Normal
142 (21.3%)
Ongoing
74 (11.1%)
Recovered with Sequela
21 (3.1%)
Died
12 (1.8%)
Euthanized
5 (0.7%)

Flea Product (Unknown): 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 Flea Product (Unknown), both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (668 here).

Similar death-coded share

Nearest other drugs by death-coded share (2.5% here), distinct from the volume row.

What to do with this drug

  • Compare Flea Product (Unknown)'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 Flea Product (Unknown) (#247 of 2,679 by report volume); death-coded 2.5%. PlainBreed drug row · report volume stamp 668 · 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 →