Prednisolone Trimeprazine Tartrate

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481 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.
481
Total Reports
15
Deaths Reported
310.0%
Death Rate

Active Ingredients

Prednisolone Trimeprazine Tartrate

Administration Routes

OralUnknown

Species Affected

Dog 477
Cat 2
Unknown 2

Most Affected Breeds

Retriever - Labrador 40
Shih Tzu 37
Terrier - Yorkshire 35
Chihuahua 34
Retriever - Golden 22
Terrier (unspecified) 19
Pit Bull 15
Terrier - Jack Russell 14
Crossbred Canine/dog 14
Bichon Frise 12

Most Reported Reactions

Emesis 199
Vomiting 61
Lethargy (see also Central nervous system depression in 'Neurological') 57
Lack of efficacy - NOS 49
Lack of efficacy (ectoparasite) - flea 31
Diarrhoea 25
Seizure NOS 19
Other abnormal test result NOS 18
INEFFECTIVE, HEARTWORM LARVAE 15
Anorexia 14
Ataxia 14
Itching 13

Outcome Breakdown

Recovered/Normal
296 (61.8%)
Outcome Unknown
106 (22.1%)
Recovered with Sequela
39 (8.1%)
Ongoing
23 (4.8%)
Euthanized
8 (1.7%)
Died
7 (1.5%)

Data Summary

Metric Value
Total adverse event reports 481
Reports involving death 15
Case-fatality rate (reported events) 310.0%
Distinct species in reports 3
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.

Prednisolone Trimeprazine Tartrate Adverse Event Insights

The FDA Center for Veterinary Medicine database currently holds 481 adverse event reports referencing Prednisolone Trimeprazine Tartrate, including 15 reports in which the animal died — a 310.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Prednisolone Trimeprazine Tartrate. Reported administration routes include Oral, Unknown. 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 Prednisolone Trimeprazine Tartrate reports are Dog (477 reports), Cat (2 reports), Unknown (2 reports), with Dog accounting for the largest share. Within those species, Retriever - Labrador (40), Shih Tzu (37), Terrier - Yorkshire (35) 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 Prednisolone Trimeprazine Tartrate are Emesis (199), Vomiting (61), Lethargy (see also Central nervous system depression in 'Neurological') (57), Lack of efficacy - NOS (49). Of the 479 reports with a coded outcome, Recovered/Normal is the leading category at 61.8%. 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 Prednisolone Trimeprazine Tartrate.

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