Drug profile

The FDA adverse-event record for Feline Calicivirus, Strain F-9, Passage 7, Lot A; Feline Panleukopenia Virus, St

134 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Feline Calicivirus, Strain F-9, Passage 7, Lot A; Feline Panleukopenia Virus, St. See the species affected, top reactions, and outcomes below.

134
adverse-event reports
26.1%
death-coded share
Cat
most-reported species
62
Lethargy (see also Central nervous system depression in 'Neurological') - 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.
134
Total Reports
35
Deaths Reported
26.1%
Death Rate

Active Ingredients

Feline Calicivirus, Strain F-9, Passage 7, Lot A; Feline Panleukopenia Virus, St

Administration Routes

Subcutaneous

Species Affected

Cat 134

Most Affected Breeds

Domestic Shorthair 92
Domestic Longhair 17
Domestic Mediumhair 7
Siamese 4
Cat (other) 3
Cat (unknown) 2
Abyssinian cat 1
Maine Coon 1
Birman (Sacred Birman) 1
Bengal 1

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 62
Anorexia 34
Vomiting 33
Fever 27
Death 24
Other abnormal test result NOS 24
Weight loss 16
Lack of efficacy (bacteria) - NOS 14
Dehydration 12
Behavioural disorder NOS 10
Ataxia 10
Lack of efficacy - NOS 10

Outcome Breakdown

Ongoing
67 (48.9%)
Recovered/Normal
28 (20.4%)
Died
28 (20.4%)
Outcome Unknown
7 (5.1%)
Euthanized
7 (5.1%)

Feline Calicivirus, Strain F-9, Passage 7, Lot A; Feline Panleukopenia Virus, St Adverse Event Insights

134 reports name Feline Calicivirus, Strain F-9, Passage 7, Lot A; Feline Panleukopenia Virus, St; 35 recorded a death outcome (26.1% of reported events, not a population-level mortality rate). Active ingredient: Feline Calicivirus, Strain F-9, Passage 7, Lot A; Feline Panleukopenia Virus, St. Administration route: Subcutaneous.

By species: Cat (134 reports). By breed: Domestic Shorthair (92), Domestic Longhair (17), Domestic Mediumhair (7).

Leading clinical signs: Lethargy (see also Central nervous system depression in 'Neurological') (62), Anorexia (34), Vomiting (33), Fever (27). Outcome, 137 coded reports: Ongoing leads at 48.9%.

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.