Drug profile

The FDA adverse-event record for Prilosec

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

19
adverse-event reports
31.6%
death-coded share
Dog
most-reported species
5
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.
19
Total Reports
6
Deaths Reported
31.6%
Death Rate

Active Ingredients

Prilosec

Administration Routes

UnknownOral

Species Affected

Dog 19

Most Affected Breeds

Retriever - Labrador 4
Crossbred Canine/dog 2
Plott 2
Chihuahua 1
Schnauzer (unspecified) 1
Spaniel - Springer (unspecified) 1
Greyhound 1
Shepherd Dog - Australian 1
Great Pyrenees 1
Bulldog - English 1

Most Reported Reactions

Vomiting 5
Diarrhoea 4
Lack of efficacy - NOS 4
Weight loss 4
Death by euthanasia 4
Emesis (multiple) 3
Decreased appetite 3
Lethargy (see also Central nervous system depression in Neurological) 3
Death 2
Seizure NOS 2
Anorexia 2
Polydipsia 2

Outcome Breakdown

Ongoing
10 (52.6%)
Euthanized
4 (21.1%)
Recovered/Normal
2 (10.5%)
Died
2 (10.5%)
Outcome Unknown
1 (5.3%)

Prilosec Adverse Event Insights

19 reports name Prilosec; 6 recorded a death outcome (31.6% of reported events, not a population-level mortality rate). Active ingredient: Prilosec. Administration routes: Unknown, Oral.

By species: Dog (19 reports). By breed: Retriever - Labrador (4), Crossbred Canine/dog (2), Plott (2).

Leading clinical signs: Vomiting (5), Diarrhoea (4), Lack of efficacy - NOS (4), Weight loss (4). Outcome, 19 coded reports: Ongoing leads at 52.6%.

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.