Drug profile

The FDA adverse-event record for Meloxidyl

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

28
adverse-event reports
21.4%
death-coded share
Dog
most-reported species
5
Death by euthanasia - 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.
28
Total Reports
6
Deaths Reported
21.4%
Death Rate

Active Ingredients

Meloxidyl

Administration Routes

OralUnknown

Species Affected

Dog 23
Cat 5

Most Affected Breeds

Retriever - Labrador 7
Domestic Shorthair 4
Chihuahua 3
Shepherd (unspecified) 2
Dog (unknown) 1
Collie (unspecified) 1
Siberian Husky 1
Pug 1
Domestic Mediumhair 1
Dog (other) 1

Most Reported Reactions

Death by euthanasia 5
Limb weakness 4
Anorexia 3
Nystagmus 3
Lethargy (see also Central nervous system depression in Neurological) 3
Elevated blood urea nitrogen (BUN) 2
Head tilt - neurological disorder (see also Head tilt - ear disorder) 2
Head tremor 2
Decreased appetite 2
Disoriented state 2
Lateral recumbency 2
Breathing difficulty 2

Outcome Breakdown

Ongoing
14 (50.0%)
Outcome Unknown
6 (21.4%)
Euthanized
5 (17.9%)
Recovered/Normal
2 (7.1%)
Died
1 (3.6%)

Meloxidyl Adverse Event Insights

28 reports name Meloxidyl; 6 recorded a death outcome (21.4% of reported events, not a population-level mortality rate). Active ingredient: Meloxidyl. Administration routes: Oral, Unknown.

By species: Dog (23 reports), Cat (5 reports). By breed: Retriever - Labrador (7), Domestic Shorthair (4), Chihuahua (3).

Leading clinical signs: Death by euthanasia (5), Limb weakness (4), Anorexia (3), Nystagmus (3). Outcome, 28 coded reports: Ongoing 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.