Drug profile

The FDA adverse-event record for Fenbendazol Meal

27 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Fenbendazol Meal. See the species affected, top reactions, and outcomes below.

27
adverse-event reports
37.0%
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.
27
Total Reports
10
Deaths Reported
37.0%
Death Rate

Active Ingredients

Fenbendazol Meal

Administration Routes

OralUnknownSubcutaneous

Species Affected

Cattle 14
Pig 5
Unknown 3
Goat 2
Turkey 1
Bison 1
Sheep 1

Most Affected Breeds

Cattle (other) 10
Unknown 7
Pig (unknown) 3
Holstein-Friesian also known as Holstein 2
Commercial hybrid 1
Aberdeen Angus 1
Nubian 1
Cattle (unspecified) 1
Goat (unknown) 1

Most Reported Reactions

Death 8
Lack of efficacy (endoparasite) - NOS 6
Breathing difficulty 2
Product problem 2
Product Defect, General 2
Vomiting 2
INEFFECTIVE, WORMS 2
Lack of efficacy - NOS 2
INEFFECTIVE, ASCARIDS NOS 1
Equilibrium disorder 1
Collapse (see also 'Cardio-vascular' and 'Systemic disorders') 1
Lack of efficacy (endoparasite) - tapeworm 1

Outcome Breakdown

Ongoing
10 (37.0%)
Died
9 (33.3%)
Outcome Unknown
7 (25.9%)
Euthanized
1 (3.7%)

Fenbendazol Meal Adverse Event Insights

27 reports name Fenbendazol Meal; 10 recorded a death outcome (37.0% of reported events, not a population-level mortality rate). Active ingredient: Fenbendazol Meal. Administration routes: Oral, Unknown, Subcutaneous.

By species: Cattle (14 reports), Pig (5 reports), Unknown (3 reports). By breed: Cattle (other) (10), Unknown (7), Pig (unknown) (3).

Leading clinical signs: Death (8), Lack of efficacy (endoparasite) - NOS (6), Breathing difficulty (2), Product problem (2). Outcome, 27 coded reports: Ongoing leads at 37.0%.

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.