Verdinexor

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579 adverse event reports submitted to the FDA

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
579
Total Reports
225
Deaths Reported
3890.0%
Death Rate

Active Ingredients

Verdinexor

Administration Routes

OralUnknownTopical

Species Affected

Dog 576
Human 3

Most Affected Breeds

Retriever - Labrador 77
Retriever - Golden 48
Dog (unknown) 41
American Pit Bull Terrier 40
Beagle 26
Crossbred Canine/dog 22
Collie - Border 17
Shih Tzu 16
Boxer (German Boxer) 15
Shepherd Dog - German 13

Most Reported Reactions

Vomiting 162
Death by euthanasia 161
Weight loss 146
Diarrhoea 108
Lack of efficacy - NOS 98
Decreased appetite 93
Elevated alanine aminotransferase (ALT) 91
Thrombocytopenia 77
Anorexia 70
Elevated serum alkaline phosphatase (SAP) 67
Lethargy (see also Central nervous system depression in 'Neurological') 61
Death 59

Outcome Breakdown

Outcome Unknown
225 (38.9%)
Euthanized
163 (28.2%)
Ongoing
72 (12.4%)
Died
62 (10.7%)
Recovered/Normal
55 (9.5%)
Recovered with Sequela
2 (0.3%)

Data Summary

Metric Value
Total adverse event reports 579
Reports involving death 225
Case-fatality rate (reported events) 3890.0%
Distinct species in reports 2
Distinct breeds in reports 20
Distinct reactions reported 20
Active ingredients on file 1

Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER). Counts reflect voluntary reports only.

Verdinexor Adverse Event Insights

The FDA Center for Veterinary Medicine database currently holds 579 adverse event reports referencing Verdinexor, including 225 reports in which the animal died — a 3890.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Verdinexor. Reported administration routes include Oral, Unknown, Topical. These numbers reflect voluntary submissions from pet owners, veterinarians, and manufacturers and therefore under-represent mild events and over-represent severe ones — a pattern the FDA has documented repeatedly for pharmacovigilance datasets.

The species most frequently named in Verdinexor reports are Dog (576 reports), Human (3 reports), with Dog accounting for the largest share. Within those species, Retriever - Labrador (77), Retriever - Golden (48), Dog (unknown) (41) appear most often — though breed popularity and ownership density shape these counts as much as any drug-specific sensitivity. This distribution matters because the same active ingredient can behave very differently across body sizes, ages, and species physiology.

The most commonly reported clinical signs associated with Verdinexor are Vomiting (162), Death by euthanasia (161), Weight loss (146), Diarrhoea (108). Of the 579 reports with a coded outcome, Outcome Unknown is the leading category at 38.9%. Because FDA adverse event data describes correlation rather than causation, these figures are best used to frame informed questions with a veterinarian and to compare reporting patterns across related products — not as a standalone safety verdict on Verdinexor.

Source: FDA Center for Veterinary Medicine — Adverse Event Reports FDA Center for Veterinary Medicine — Adverse Event Reports Data reflects voluntary submissions and may not represent actual incidence rates

Related

Data sourced from official AKC, AVMA, ACVO, and breed-club veterinary references. See our methodology for details. Retrieved and formatted by PlainBreed Editorial