Drug profile

The FDA adverse-event record for Hypoallergenic Diet

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

123
adverse-event reports
5.7%
death-coded share
Dog
most-reported species
24
Lack of efficacy - NOS - 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.
123
Total Reports
7
Deaths Reported
5.7%
Death Rate

Active Ingredients

Hypoallergenic Diet

Administration Routes

OralUnknown

Species Affected

Dog 110
Cat 13

Most Affected Breeds

Retriever - Labrador 12
Domestic Shorthair 9
Bulldog - French 8
Crossbred Canine/dog 6
Terrier - Bull - American Pit 5
Terrier - Yorkshire 5
Shepherd Dog - German 4
Shih Tzu 4
Bulldog 4
Terrier - Boston 4

Most Reported Reactions

Lack of efficacy - NOS 24
INEFFECTIVE, ATOPY CONTROL 17
Other abnormal test result NOS 14
Lethargy (see also Central nervous system depression in 'Neurological') 11
Diarrhoea 11
Vomiting 8
Not eating 7
Elevated blood urea nitrogen (BUN) 6
Weight loss 6
Overdose 6
Partial lack of efficacy 6
Elevated alanine aminotransferase (ALT) 6

Outcome Breakdown

Ongoing
83 (67.5%)
Recovered/Normal
17 (13.8%)
Outcome Unknown
16 (13.0%)
Euthanized
4 (3.3%)
Died
3 (2.4%)

Hypoallergenic Diet Adverse Event Insights

123 reports name Hypoallergenic Diet; 7 recorded a death outcome (5.7% of reported events, not a population-level mortality rate). Active ingredient: Hypoallergenic Diet. Administration routes: Oral, Unknown.

By species: Dog (110 reports), Cat (13 reports). By breed: Retriever - Labrador (12), Domestic Shorthair (9), Bulldog - French (8).

Leading clinical signs: Lack of efficacy - NOS (24), INEFFECTIVE, ATOPY CONTROL (17), Other abnormal test result NOS (14), Lethargy (see also Central nervous system depression in 'Neurological') (11). Outcome, 123 coded reports: Ongoing leads at 67.5%.

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.