Drug profile

The FDA adverse-event record for Clostridium Perfringens C,D Kb

11 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Clostridium Perfringens C,D Kb. See the species affected, top reactions, and outcomes below.

11
adverse-event reports
81.8%
death-coded share
Cattle
most-reported species
8
Death - 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
9
Deaths Reported
81.8%
Death Rate

Active Ingredients

Clostridium Perfringens C,D Kb

Administration Routes

SubcutaneousUnknown

Species Affected

Cattle 11

Most Affected Breeds

Cattle (other) 4
Aberdeen Angus 3
Crossbred Bovine/Cattle 2
Mixed (Cattle) 1
Red Angus 1

Most Reported Reactions

Death 8
Lack of efficacy - NOS 4
Anaphylaxis 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Anaphylactic-type reaction 2
Rumen acidosis 1
Malaise 1
INEFFECTIVE, WORMS NOS 1
INEFFECTIVE, ANTIBIOTIC 1
NT - Abnormal necropsy finding NOS 1
Found dead 1
Lack of efficacy (bacteria) - NOS 1

Outcome Breakdown

Died
9 (47.4%)
Recovered/Normal
4 (21.1%)
Outcome Unknown
4 (21.1%)
Ongoing
2 (10.5%)

Clostridium Perfringens C,D Kb Adverse Event Insights

11 reports name Clostridium Perfringens C,D Kb; 9 recorded a death outcome (81.8% of reported events, not a population-level mortality rate). Active ingredient: Clostridium Perfringens C,D Kb. Administration routes: Subcutaneous, Unknown.

By species: Cattle (11 reports). By breed: Cattle (other) (4), Aberdeen Angus (3), Crossbred Bovine/Cattle (2).

Leading clinical signs: Death (8), Lack of efficacy - NOS (4), Anaphylaxis (2), Lethargy (see also Central nervous system depression in 'Neurological') (2). Outcome, 19 coded reports: Died leads at 47.4%.

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.