Drug profile

The FDA adverse-event record for Unknown Fvrcp Vaccine

16 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Unknown Fvrcp Vaccine. See the species affected, top reactions, and outcomes below.

16
adverse-event reports
12.5%
death-coded share
Cat
most-reported species
6
Weight loss - 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.
16
Total Reports
2
Deaths Reported
12.5%
Death Rate

Active Ingredients

Unknown Fvrcp Vaccine

Administration Routes

UnknownSubcutaneous

Species Affected

Cat 16

Most Affected Breeds

Domestic Shorthair 11
Cat (other) 2
Domestic Mediumhair 1
Siamese 1
Russian 1

Most Reported Reactions

Weight loss 6
Anorexia 5
Not eating 4
Hiding 4
Tremor 4
Vomiting 3
Walking difficulty 3
Muscle wasting 3
Lethargy (see also Central nervous system depression in 'Neurological') 2
Inappropriate urination 2
Head tremor 2
Drinking a lot 2

Outcome Breakdown

Outcome Unknown
8 (50.0%)
Ongoing
4 (25.0%)
Euthanized
2 (12.5%)
Recovered/Normal
2 (12.5%)

Unknown Fvrcp Vaccine Adverse Event Insights

16 reports name Unknown Fvrcp Vaccine; 2 recorded a death outcome (12.5% of reported events, not a population-level mortality rate). Active ingredient: Unknown Fvrcp Vaccine. Administration routes: Unknown, Subcutaneous.

By species: Cat (16 reports). By breed: Domestic Shorthair (11), Cat (other) (2), Domestic Mediumhair (1).

Leading clinical signs: Weight loss (6), Anorexia (5), Not eating (4), Hiding (4). Outcome, 16 coded reports: Outcome Unknown leads at 50.0%.

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.