Drug profile

The FDA adverse-event record for Dexamethasone

2,311 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Dexamethasone. See the species affected, top reactions, and outcomes below.

2,311
adverse-event reports
24.6%
death-coded share
Dog
most-reported species
670
Vomiting - 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.
2,311
Total Reports
568
Deaths Reported
24.6%
Death Rate

Active Ingredients

Dexamethasone

Administration Routes

UnknownSubcutaneousIntravenousParenteralOralIntramuscularAuricular (Otic)OphthalmicTopicalOther

Species Affected

Dog 1,713
Cat 492
Cattle 44
Horse 43
Unknown 8
Pig 6
Human 3
Other 1
Ferret 1

Most Affected Breeds

Domestic Shorthair 315
Retriever - Labrador 164
Chihuahua 109
Terrier - Bull - American Pit 98
Retriever - Golden 58
Terrier - Yorkshire 58
Shih Tzu 57
Crossbred Canine/dog 56
Domestic Longhair 54
Shepherd Dog - German 50

Most Reported Reactions

Vomiting 670
Lethargy (see also Central nervous system depression in 'Neurological') 560
Death 302
Diarrhoea 289
Anorexia 281
Anaphylaxis 252
Death by euthanasia 244
Other abnormal test result NOS 228
Fever 218
Pale mucous membrane 188
Leucocytosis NOS 180
Elevated alanine aminotransferase (ALT) 171

Outcome Breakdown

Ongoing
884 (38.1%)
Recovered/Normal
516 (22.2%)
Outcome Unknown
331 (14.3%)
Died
327 (14.1%)
Euthanized
243 (10.5%)
Recovered with Sequela
21 (0.9%)

Dexamethasone Adverse Event Insights

2,311 reports name Dexamethasone; 568 recorded a death outcome (24.6% of reported events, not a population-level mortality rate). Active ingredient: Dexamethasone. Administration routes: Unknown, Subcutaneous, Intravenous, Parenteral.

By species: Dog (1,713 reports), Cat (492 reports), Cattle (44 reports). By breed: Domestic Shorthair (315), Retriever - Labrador (164), Chihuahua (109).

Leading clinical signs: Vomiting (670), Lethargy (see also Central nervous system depression in 'Neurological') (560), Death (302), Diarrhoea (289). Outcome, 2,322 coded reports: Ongoing leads at 38.1%.

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.