Drug profile

The FDA adverse-event record for Fluralaner Chew Tablets

35,883 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Fluralaner Chew Tablets. See the species affected, top reactions, and outcomes below.

35,883
adverse-event reports
3.3%
death-coded share
Dog
most-reported species
11,977
Vomiting - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
35,883
Total Reports
1,187
Deaths Reported
3.3%
Death Rate

Active Ingredients

Fluralaner Chew Tablets

Administration Routes

OralUnknownTopicalTransplacentalOtherIntrauterineOphthalmicRectalSubcutaneous

Species Affected

Dog 32,413
Unknown 3,355
Human 57
Cat 46
Wolf 3
Marsupial 3
Other 1
Rabbit 1
Tiger 1
Deer 1

Most Affected Breeds

Crossbred Canine/dog 7,461
Unknown 3,444
Retriever - Labrador 2,581
Chihuahua 1,351
Shih Tzu 1,201
Shepherd Dog - German 1,151
Terrier - Yorkshire 1,128
Retriever - Golden 1,006
Dog (unknown) 983
Pit Bull 883

Most Reported Reactions

Vomiting 11,977
Lack of efficacy (ectoparasite) - flea 4,018
Lethargy (see also Central nervous system depression in 'Neurological') 3,354
Emesis (multiple) 3,130
UNPALATABLE 2,833
Diarrhoea 2,599
Lack of efficacy (ectoparasite) - tick NOS 1,566
Lack of efficacy (flea) 1,451
Seizure NOS 1,443
Lack of efficacy (tick) 1,427
Product problem 1,266
Product Defect, General 1,210

Outcome Breakdown

Recovered/Normal
15,491 (47.6%)
Ongoing
11,277 (34.6%)
Outcome Unknown
4,358 (13.4%)
Euthanized
636 (2.0%)
Died
554 (1.7%)
Recovered with Sequela
231 (0.7%)

Fluralaner Chew Tablets Adverse Event Insights

35,883 reports name Fluralaner Chew Tablets; 1,187 recorded a death outcome (3.3% of reported events, not a population-level mortality rate). Active ingredient: Fluralaner Chew Tablets. Administration routes: Oral, Unknown, Topical, Transplacental.

By species: Dog (32,413 reports), Unknown (3,355 reports), Human (57 reports). By breed: Crossbred Canine/dog (7,461), Unknown (3,444), Retriever - Labrador (2,581).

Leading clinical signs: Vomiting (11,977), Lack of efficacy (ectoparasite) - flea (4,018), Lethargy (see also Central nervous system depression in 'Neurological') (3,354), Emesis (multiple) (3,130). Outcome, 32,547 coded reports: Recovered/Normal leads at 47.6%.

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.

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

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.