Drug profile

The FDA adverse-event record for Ilunocitinib

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

897
adverse-event reports
6.0%
death-coded share
Dog
most-reported species
173
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.
897
Total Reports
54
Deaths Reported
6.0%
Death Rate

Active Ingredients

Ilunocitinib

Administration Routes

OralUnknown

Species Affected

Dog 870
Unknown 26
Human 1

Most Affected Breeds

Retriever - Labrador 118
Dog (unknown) 82
Pit Bull 61
Retriever - Golden 45
Crossbred Canine/dog 44
Shepherd Dog - German 42
Bulldog - French 37
Shih Tzu 31
Bulldog - English 28
Unknown 27

Most Reported Reactions

Lack of efficacy - NOS 173
Lethargy (see also Central nervous system depression in Neurological) 131
Diarrhoea 110
Vomiting 91
Leucopenia NOS 69
Neutropenia 66
Decreased haematocrit 62
Elevated serum alkaline phosphatase (ALP) 55
Lymphopenia 51
Elevated alanine aminotransferase (ALT) 50
Other abnormal test result NOS 46
Behavioural disorder NOS 45

Outcome Breakdown

Outcome Unknown
386 (44.3%)
Ongoing
271 (31.1%)
Recovered/Normal
160 (18.4%)
Euthanized
39 (4.5%)
Died
15 (1.7%)

Ilunocitinib Adverse Event Insights

897 reports name Ilunocitinib; 54 recorded a death outcome (6.0% of reported events, not a population-level mortality rate). Active ingredient: Ilunocitinib. Administration routes: Oral, Unknown.

By species: Dog (870 reports), Unknown (26 reports), Human (1 reports). By breed: Retriever - Labrador (118), Dog (unknown) (82), Pit Bull (61).

Leading clinical signs: Lack of efficacy - NOS (173), Lethargy (see also Central nervous system depression in Neurological) (131), Diarrhoea (110), Vomiting (91). Outcome, 871 coded reports: Outcome Unknown leads at 44.3%.

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.