Fluconazole

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300 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.
300
Total Reports
37
Deaths Reported
1230.0%
Death Rate

Active Ingredients

Fluconazole

Administration Routes

UnknownOralTopicalIntravenousSubcutaneous

Species Affected

Dog 270
Cat 27
Parrot 2
Human 1

Most Affected Breeds

Retriever - Labrador 29
Shepherd Dog - German 18
Domestic Shorthair 17
Shih Tzu 13
Terrier - Yorkshire 12
Retriever - Golden 12
Terrier - West Highland White 12
Crossbred Canine/dog 10
Pug 8
Bulldog - French 8

Most Reported Reactions

Vomiting 57
Lethargy (see also Central nervous system depression in 'Neurological') 48
Other abnormal test result NOS 39
Diarrhoea 33
Lack of efficacy - NOS 31
Anorexia 20
Weight loss 20
Emesis 19
Death by euthanasia 19
Elevated alanine aminotransferase (ALT) 18
Seizure NOS 18
Death 17

Outcome Breakdown

Ongoing
126 (42.3%)
Recovered/Normal
70 (23.5%)
Outcome Unknown
62 (20.8%)
Died
19 (6.4%)
Euthanized
18 (6.0%)
Recovered with Sequela
3 (1.0%)

Data Summary

Metric Value
Total adverse event reports 300
Reports involving death 37
Case-fatality rate (reported events) 1230.0%
Distinct species in reports 4
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.

Fluconazole Adverse Event Insights

The FDA Center for Veterinary Medicine database currently holds 300 adverse event reports referencing Fluconazole, including 37 reports in which the animal died — a 1230.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Fluconazole. Reported administration routes include Unknown, Oral, Topical, Intravenous. 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 Fluconazole reports are Dog (270 reports), Cat (27 reports), Parrot (2 reports), with Dog accounting for the largest share. Within those species, Retriever - Labrador (29), Shepherd Dog - German (18), Domestic Shorthair (17) 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 Fluconazole are Vomiting (57), Lethargy (see also Central nervous system depression in 'Neurological') (48), Other abnormal test result NOS (39), Diarrhoea (33). Of the 298 reports with a coded outcome, Ongoing is the leading category at 42.3%. 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 Fluconazole.

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