Drug profile

The FDA adverse-event record for Allergy Medication

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

14
adverse-event reports
14.3%
death-coded share
Dog
most-reported species
5
Lack of efficacy (ectoparasite) - flea - 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.
14
Total Reports
2
Deaths Reported
14.3%
Death Rate

Active Ingredients

Allergy Medication

Administration Routes

UnknownOralSubcutaneous

Species Affected

Dog 12
Cat 2

Most Affected Breeds

Crossbred Canine/dog 3
Terrier - Yorkshire 2
Domestic Shorthair 2
Bulldog 1
Pekingese 1
Spaniel - Boykin 1
Bulldog - French 1
Terrier - Silky 1
Saluki 1
Shih Tzu 1

Most Reported Reactions

Lack of efficacy (ectoparasite) - flea 5
Vomiting 3
Pruritus 3
Seizure NOS 2
Vocalisation 2
Death by euthanasia 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Behavioural disorder NOS 2
Disorientation 1
Elevated serum alkaline phosphatase (SAP) 1
Elevated alanine aminotransferase (ALT) 1
Inappetence 1

Outcome Breakdown

Outcome Unknown
8 (57.1%)
Recovered/Normal
3 (21.4%)
Euthanized
2 (14.3%)
Ongoing
1 (7.1%)

Allergy Medication Adverse Event Insights

14 reports name Allergy Medication; 2 recorded a death outcome (14.3% of reported events, not a population-level mortality rate). Active ingredient: Allergy Medication. Administration routes: Unknown, Oral, Subcutaneous.

By species: Dog (12 reports), Cat (2 reports). By breed: Crossbred Canine/dog (3), Terrier - Yorkshire (2), Domestic Shorthair (2).

Leading clinical signs: Lack of efficacy (ectoparasite) - flea (5), Vomiting (3), Pruritus (3), Seizure NOS (2). Outcome, 14 coded reports: Outcome Unknown leads at 57.1%.

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.