Drug profile

The FDA adverse-event record for Feline Hcp + Felv Carbo Adj

11 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Feline Hcp + Felv Carbo Adj. See the species affected, top reactions, and outcomes below.

11
adverse-event reports
9.1%
death-coded share
Cat
most-reported species
3
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.
11
Total Reports
1
Deaths Reported
9.1%
Death Rate

Active Ingredients

Feline Hcp + Felv Carbo Adj

Administration Routes

Subcutaneous

Species Affected

Cat 11

Most Affected Breeds

Domestic Shorthair 8
Domestic Mediumhair 2
Siamese 1

Most Reported Reactions

Vomiting 3
Emesis (multiple) 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Not eating 2
Anaphylaxis 2
Lethargy (see also Central nervous system depression in Neurological) 2
Application site hair loss 1
Icterus 1
Regenerative anaemia 1
Elevated total bilirubin 1
Immune mediated haemolytic anaemia 1
Decreased packed cell volume (PCV) 1

Outcome Breakdown

Ongoing
6 (54.5%)
Recovered/Normal
2 (18.2%)
Outcome Unknown
2 (18.2%)
Died
1 (9.1%)

Feline Hcp + Felv Carbo Adj Adverse Event Insights

11 reports name Feline Hcp + Felv Carbo Adj; 1 recorded a death outcome (9.1% of reported events, not a population-level mortality rate). Active ingredient: Feline Hcp + Felv Carbo Adj. Administration route: Subcutaneous.

By species: Cat (11 reports). By breed: Domestic Shorthair (8), Domestic Mediumhair (2), Siamese (1).

Leading clinical signs: Vomiting (3), Emesis (multiple) (2), Lethargy (see also Central nervous system depression in 'Neurological') (2), Not eating (2). Outcome, 11 coded reports: Ongoing leads at 54.5%.

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.