Drug profile

The FDA adverse-event record for Civ (H3N2/H3N8)

15 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Civ (H3N2/H3N8). See the species affected, top reactions, and outcomes below.

15
adverse-event reports
0.0%
death-coded share
Dog
most-reported species
11
Vomiting - 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.
15
Total Reports
0
Deaths Reported
0.0%
Death Rate

Active Ingredients

Civ (H3N2/H3N8)

Administration Routes

UnknownSubcutaneous

Species Affected

Dog 15

Most Affected Breeds

Chihuahua 3
Retriever - Labrador 2
Terrier - Bull - American Pit 1
Boxer (German Boxer) 1
Terrier - Irish Soft-coated Wheaten 1
Coonhound (unspecified) 1
Chinese Crested Dog (unspecified) 1
Spaniel - Boykin 1
Retriever - Chesapeake Bay 1
Bulldog - French 1

Most Reported Reactions

Vomiting 11
Hives (see also 'Skin') 5
Facial swelling (see also 'Skin') 4
Fever 3
Anaphylaxis 2
Diarrhoea 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Unresponsive to stimuli 1
Prolonged activated partial thrombin time (APTT) 1
Elevated liver enzymes 1
Recumbency 1
Prolonged one stage prothrombin time (OSPT) 1

Outcome Breakdown

Ongoing
6 (40.0%)
Recovered/Normal
6 (40.0%)
Outcome Unknown
3 (20.0%)

Civ (H3N2/H3N8) Adverse Event Insights

15 reports name Civ (H3N2/H3N8); 0 recorded a death outcome (0.0% of reported events, not a population-level mortality rate). Active ingredient: Civ (H3N2/H3N8). Administration routes: Unknown, Subcutaneous.

By species: Dog (15 reports). By breed: Chihuahua (3), Retriever - Labrador (2), Terrier - Bull - American Pit (1).

Leading clinical signs: Vomiting (11), Hives (see also 'Skin') (5), Facial swelling (see also 'Skin') (4), Fever (3). Outcome, 15 coded reports: Ongoing leads at 40.0%.

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.