Drug profile

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

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

22
adverse-event reports
27.3%
death-coded share
Cat
most-reported species
7
Emesis (multiple) - 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.
22
Total Reports
6
Deaths Reported
27.3%
Death Rate

Active Ingredients

Feline Hcp-Chlam + Felv Carbo

Administration Routes

SubcutaneousUnknown

Species Affected

Cat 22

Most Affected Breeds

Domestic Shorthair 16
Domestic Longhair 3
Cat (other) 1
Ragdoll 1
Domestic Mediumhair 1

Most Reported Reactions

Emesis (multiple) 7
Lethargy (see also Central nervous system depression in 'Neurological') 6
Death 5
Application site hair loss 4
Vomiting 3
Appetite loss 3
Weight loss 3
Lethargy (see also Central nervous system depression in Neurological) 3
Anorexia 2
Ataxia 2
Elevated amylase 2
Hyperglycaemia 2

Outcome Breakdown

Ongoing
8 (36.4%)
Recovered/Normal
5 (22.7%)
Died
5 (22.7%)
Outcome Unknown
3 (13.6%)
Euthanized
1 (4.5%)

Feline Hcp-Chlam + Felv Carbo Adverse Event Insights

22 reports name Feline Hcp-Chlam + Felv Carbo; 6 recorded a death outcome (27.3% of reported events, not a population-level mortality rate). Active ingredient: Feline Hcp-Chlam + Felv Carbo. Administration routes: Subcutaneous, Unknown.

By species: Cat (22 reports). By breed: Domestic Shorthair (16), Domestic Longhair (3), Cat (other) (1).

Leading clinical signs: Emesis (multiple) (7), Lethargy (see also Central nervous system depression in 'Neurological') (6), Death (5), Application site hair loss (4). Outcome, 22 coded reports: Ongoing leads at 36.4%.

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.