Drug profile

The FDA adverse-event record for Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain

Name: Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain - FDA Animal Adverse Event Reports
Creator: PlainBreed
License: https://creativecommons.org/publicdomain/zero/1.0/

11 FDA reports name Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain, a lower-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#2448 of 2,679
by report volume (all drugs): 11
adverse-event reports: 36.4%
death-coded share: Cat
most-reported species

Compiled by PlainBreed

Verify with FDA CVM →

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain ranks #2412 of 2679 by total reports (11). Death-coded-share rank requires at least 50 reports. National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1): 97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1): #2412
This drug, reports of 2679

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Signature read: 11 reports place Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain in the lower third of FDA AER volume (#2448 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.

Total Reports

Deaths Reported

36.4%

Death-coded share of reports

Active Ingredients

Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain

Administration Routes

Subcutaneous

Species Affected

Cat 11

Most Affected Breeds

Domestic Shorthair 5

Domestic Longhair 3

Ragdoll 1

Domestic Mediumhair 1

Siamese 1

Most Reported Reactions

Lethargy (see also Central nervous system depression in Neurological) 9

Diarrhoea 4

Death by euthanasia 4

Not eating 3

Fever 3

Vomiting 3

Anaemia NOS 3

Other abnormal test result NOS 3

Behavioural disorder NOS 2

Not drinking 2

Discomfort NOS 2

Lack of efficacy (virus) - parvovirus (including feline panleukopenia) 2

Outcome Breakdown

Euthanized

4 (36.4%)

Recovered/Normal

4 (36.4%)

Ongoing

3 (27.3%)

Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain: high death-coded share in the FDA AER row

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.

What to do with this drug

Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Feline Calicivirus, 255 Strain,Feline Calicivirus, Dd1 Strain,Feline Leukemia Virus, Ah927/1161E Strain,Feline Panleukopenia Virus, Cu-4 Strain,Feline Viral Rhinotracheitis, 605 Strain (#2448 of 2,679 by report volume); death-coded 36.4%. PlainBreed drug row · report volume stamp 11 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →