Neopolydex

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19 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.
19
Total Reports
3
Deaths Reported
1580.0%
Death Rate

Active Ingredients

Neopolydex

Administration Routes

OphthalmicUnknownTopicalIntraocular

Species Affected

Dog 18
Cat 1

Most Affected Breeds

Shih Tzu 2
Crossbred Canine/dog 2
Schnauzer (unspecified) 2
Maltese 2
Terrier - Yorkshire 1
Schnauzer - Miniature 1
Beagle 1
Pug 1
Terrier - Cairn 1
Havanese 1

Most Reported Reactions

Vomiting 5
Seizure NOS 4
Death by euthanasia 2
Decreased appetite 2
Elevated alanine aminotransferase (ALT) 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Diarrhoea 2
Lack of efficacy - NOS 2
Circling - neurological disorder (see also 'Behavioural disorders') 1
Nystagmus 1
Overdose 1
Hyperpigmentation 1

Outcome Breakdown

Recovered/Normal
7 (36.8%)
Ongoing
7 (36.8%)
Euthanized
2 (10.5%)
Outcome Unknown
2 (10.5%)
Died
1 (5.3%)

Data Summary

Metric Value
Total adverse event reports 19
Reports involving death 3
Case-fatality rate (reported events) 1580.0%
Distinct species in reports 2
Distinct breeds in reports 15
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.

Neopolydex Adverse Event Insights

The FDA Center for Veterinary Medicine database currently holds 19 adverse event reports referencing Neopolydex, including 3 reports in which the animal died — a 1580.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Neopolydex. Reported administration routes include Ophthalmic, Unknown, Topical, Intraocular. 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 Neopolydex reports are Dog (18 reports), Cat (1 reports), with Dog accounting for the largest share. Within those species, Shih Tzu (2), Crossbred Canine/dog (2), Schnauzer (unspecified) (2) 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 Neopolydex are Vomiting (5), Seizure NOS (4), Death by euthanasia (2), Decreased appetite (2). Of the 19 reports with a coded outcome, Recovered/Normal is the leading category at 36.8%. 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 Neopolydex.

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