Drug profile

The FDA adverse-event record for Zeniquin

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

23
adverse-event reports
13.0%
death-coded share
Dog
most-reported species
6
Emesis - 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.
23
Total Reports
3
Deaths Reported
13.0%
Death Rate

Active Ingredients

Zeniquin

Administration Routes

OralUnknown

Species Affected

Dog 17
Cat 6

Most Affected Breeds

Domestic Shorthair 4
Terrier - Boston 2
Retriever - Labrador 2
Terrier - West Highland White 2
Domestic Mediumhair 1
Maltese 1
Pointing Dog - German Short-haired 1
Retriever - Golden 1
Dachshund - Miniature 1
Spaniel - Cocker American 1

Most Reported Reactions

Emesis 6
Vomiting 3
Not drinking 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Not eating 2
Death 2
NT - Abnormal necropsy finding NOS 2
Vocalisation 2
Tremor 2
Lack of efficacy - NOS 2
Diarrhoea 2
Application site alopecia 1

Outcome Breakdown

Recovered/Normal
11 (47.8%)
Outcome Unknown
6 (26.1%)
Died
2 (8.7%)
Ongoing
2 (8.7%)
Euthanized
1 (4.3%)
Recovered with Sequela
1 (4.3%)

Zeniquin Adverse Event Insights

23 reports name Zeniquin; 3 recorded a death outcome (13.0% of reported events, not a population-level mortality rate). Active ingredient: Zeniquin. Administration routes: Oral, Unknown.

By species: Dog (17 reports), Cat (6 reports). By breed: Domestic Shorthair (4), Terrier - Boston (2), Retriever - Labrador (2).

Leading clinical signs: Emesis (6), Vomiting (3), Not drinking (2), Lethargy (see also Central nervous system depression in 'Neurological') (2). Outcome, 23 coded reports: Recovered/Normal leads at 47.8%.

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.