Drug profile

The FDA adverse-event record for Nexguard

10 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Nexguard. See the species affected, top reactions, and outcomes below.

10
adverse-event reports
60.0%
death-coded share
Dog
most-reported species
5
Death by euthanasia - top reaction
Verify with FDA CVM →
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
10
Total Reports
6
Deaths Reported
60.0%
Death Rate

Active Ingredients

Nexguard

Administration Routes

OralUnknown

Species Affected

Dog 10

Most Affected Breeds

Retriever - Labrador 2
Shepherd Dog - German 1
Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) 1
Schnauzer - Miniature 1
Siberian Husky 1
Shepherd Dog - Australian 1
Dogue de Bordeaux 1
Terrier (unspecified) 1
Pug 1

Most Reported Reactions

Death by euthanasia 5
Lethargy (see also Central nervous system depression in Neurological) 3
Vomiting 3
Ataxia 2
Seizure NOS 2
Excessive thirst 2
Collapse NOS (see also Cardio-vascular and Neurological disorders) 2
Nausea 2
Hypersalivation 2
Nystagmus 2
Not eating 2
Hind limb ataxia 2

Outcome Breakdown

Euthanized
5 (50.0%)
Recovered/Normal
2 (20.0%)
Ongoing
2 (20.0%)
Died
1 (10.0%)

Nexguard Adverse Event Insights

10 reports name Nexguard; 6 recorded a death outcome (60.0% of reported events, not a population-level mortality rate). Active ingredient: Nexguard. Administration routes: Oral, Unknown.

By species: Dog (10 reports). By breed: Retriever - Labrador (2), Shepherd Dog - German (1), Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) (1).

Leading clinical signs: Death by euthanasia (5), Lethargy (see also Central nervous system depression in Neurological) (3), Vomiting (3), Ataxia (2). Outcome, 10 coded reports: Euthanized leads at 50.0%.

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.