Drug profile

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

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

66
adverse-event reports
18.2%
death-coded share
Cat
most-reported species
29
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.
66
Total Reports
12
Deaths Reported
18.2%
Death Rate

Active Ingredients

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

Administration Routes

SubcutaneousUnknown

Species Affected

Cat 66

Most Affected Breeds

Domestic Shorthair 45
Domestic Longhair 5
American Curl Shorthair 3
Domestic Mediumhair 2
Maine Coon 2
Bengal 2
Siamese 2
Russian 1
Persian 1
Cat (unknown) 1

Most Reported Reactions

Lethargy (see also Central nervous system depression in Neurological) 29
Not eating 15
Vomiting 14
Emesis (multiple) 13
Diarrhoea 12
Fever 10
Anaphylaxis 10
Lack of efficacy - NOS 9
Open mouth breathing 7
Panting 6
Death by euthanasia 6
Death 6

Outcome Breakdown

Ongoing
34 (51.5%)
Recovered/Normal
16 (24.2%)
Euthanized
6 (9.1%)
Died
6 (9.1%)
Outcome Unknown
3 (4.5%)
Recovered with Sequela
1 (1.5%)

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

66 reports name Feline Calicivirus, Strain F-9, Passage 7, Lot A;Feline Panleukopenia Virus, Str; 12 recorded a death outcome (18.2% of reported events, not a population-level mortality rate). Active ingredient: Feline Calicivirus, Strain F-9, Passage 7, Lot A;Feline Panleukopenia Virus, Str. Administration routes: Subcutaneous, Unknown.

By species: Cat (66 reports). By breed: Domestic Shorthair (45), Domestic Longhair (5), American Curl Shorthair (3).

Leading clinical signs: Lethargy (see also Central nervous system depression in Neurological) (29), Not eating (15), Vomiting (14), Emesis (multiple) (13). Outcome, 66 coded reports: Ongoing leads at 51.5%.

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.