Drug profile

The FDA adverse-event record for Allergy

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

191
adverse-event reports
7.3%
death-coded share
Dog
most-reported species
26
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.
191
Total Reports
14
Deaths Reported
7.3%
Death Rate

Active Ingredients

Allergy

Administration Routes

UnknownSubcutaneousOralSublingualIntradermal

Species Affected

Dog 185
Cat 6

Most Affected Breeds

Retriever - Labrador 23
Shih Tzu 10
Shepherd Dog - German 9
Boxer (German Boxer) 7
Terrier - Bull - American Pit 7
Retriever - Golden 7
Terrier - Yorkshire 6
Chihuahua 6
Crossbred Canine/dog 6
Terrier - Boston 6

Most Reported Reactions

Vomiting 26
Lack of efficacy - NOS 24
Lethargy (see also Central nervous system depression in 'Neurological') 20
Other abnormal test result NOS 19
Elevated serum alkaline phosphatase (SAP) 18
INEFFECTIVE, LOSS OF EFFECT 18
INEFFECTIVE, ATOPY CONTROL 16
Behavioural disorder NOS 13
Diarrhoea 12
Anorexia 9
Elevated alanine aminotransferase (ALT) 9
Seizure NOS 8

Outcome Breakdown

Ongoing
124 (64.9%)
Outcome Unknown
37 (19.4%)
Recovered/Normal
16 (8.4%)
Euthanized
8 (4.2%)
Died
6 (3.1%)

Allergy Adverse Event Insights

191 reports name Allergy; 14 recorded a death outcome (7.3% of reported events, not a population-level mortality rate). Active ingredient: Allergy. Administration routes: Unknown, Subcutaneous, Oral, Sublingual.

By species: Dog (185 reports), Cat (6 reports). By breed: Retriever - Labrador (23), Shih Tzu (10), Shepherd Dog - German (9).

Leading clinical signs: Vomiting (26), Lack of efficacy - NOS (24), Lethargy (see also Central nervous system depression in 'Neurological') (20), Other abnormal test result NOS (19). Outcome, 191 coded reports: Ongoing leads at 64.9%.

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.