Drug profile

The FDA adverse-event record for Fluralaner 13.64% 12-Week Chew

28,569 FDA reports name Fluralaner 13.64% 12-Week Chew, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#11 of 2,679
by report volume (all drugs)
28,569
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, Fluralaner 13.64% 12-Week Chew ranks #11 of 2679 by total reports (28,569) and #955 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)
#11
This drug, reports of 2679
#955
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. Fluralaner 13.64% 12-Week Chew has 28,569 reports now versus 27,735 in that prior snapshot: 834 more (3.0%).

Report change
+834
Death-coded reports
+18
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 Fluralaner 13.64% 12-Week Chew changes

Signature read: 28,569 reports place Fluralaner 13.64% 12-Week Chew in the upper third of FDA AER volume (#11 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.
28,569
Total Reports
715
Deaths Reported
2.5%
Death-coded share of reports

Active Ingredients

Fluralaner 13.64% 12-Week Chew

Administration Routes

OralUnknownTopicalOtherDentalImmersionOropharyngealRectalSubcutaneous

Species Affected

Dog 26,722
Unknown 1,758
Cat 42
Human 32
Horse 6
Goat 3
Fox 2
Chicken 2
Other 1
Other Canids 1

Most Affected Breeds

Crossbred Canine/dog 6,635
Retriever - Labrador 1,957
Unknown 1,882
Dog (unknown) 1,522
Retriever - Golden 1,053
Chihuahua 996
Shepherd Dog - German 975
Shih Tzu 777
Terrier - Yorkshire 773
Shepherd Dog - Australian 708

Most Reported Reactions

Lack of efficacy (ectoparasite) - flea 8,363
Vomiting 6,449
Lack of efficacy (ectoparasite) - tick NOS 3,002
Emesis (multiple) 2,056
Seizure NOS 1,370
Diarrhoea 1,317
UNPALATABLE 1,207
Lethargy (see also Central nervous system depression in 'Neurological') 1,121
Product Defect, General 1,047
Lack of efficacy (bacteria) - Borrelia 997
Lack of efficacy (bacteria) - NOS 864
Lack of efficacy (bacteria) - Anaplasma 728

Outcome Breakdown

Ongoing
15,933 (59.4%)
Recovered/Normal
8,697 (32.4%)
Outcome Unknown
1,226 (4.6%)
Euthanized
362 (1.3%)
Died
353 (1.3%)
Recovered with Sequela
263 (1.0%)

Fluralaner 13.64% 12-Week Chew: 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 Fluralaner 13.64% 12-Week Chew, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Fluralaner 13.64% 12-Week Chew'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 Fluralaner 13.64% 12-Week Chew (#11 of 2,679 by report volume); death-coded 2.5%. PlainBreed drug row · report volume stamp 28,569 · 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 →