Drug profile

The FDA adverse-event record for Fenbendazol Granules

2,491 FDA reports name Fenbendazol Granules, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#89 of 2,679
by report volume (all drugs)
2,491
adverse-event reports
6.0%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Fenbendazol Granules ranks #89 of 2679 by total reports (2,491) and #733 of 1130 by death-coded share (6.0%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#89
This drug, reports of 2679
#733
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Fenbendazol Granules has 2,491 reports now versus 2,455 in that prior snapshot: 36 more (1.5%).

Report change
+36
Death-coded reports
+0
Death-coded share
−0.1 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Fenbendazol Granules changes

Signature read: 2,491 reports place Fenbendazol Granules in the upper third of FDA AER volume (#89 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
2,491
Total Reports
150
Deaths Reported
6.0%
Death-coded share of reports

Active Ingredients

Fenbendazol Granules

Administration Routes

OralUnknownTopicalSubcutaneousRespiratory (Inhalation)

Species Affected

Dog 2,212
Unknown 185
Cat 71
Human 23

Most Affected Breeds

Crossbred Canine/dog 452
Unknown 213
Retriever - Labrador 168
Dog (unknown) 147
Pit Bull 122
Chihuahua 90
Shepherd Dog - German 78
Beagle 61
Retriever - Golden 61
Greyhound 49

Most Reported Reactions

Vomiting 447
Diarrhoea 356
Emesis (multiple) 353
Lethargy (see also Central nervous system depression in 'Neurological') 313
Lack of efficacy (endoparasite) - hookworm 222
Underdose 196
Not eating 150
Defect Unknown/Not Specified 133
Anorexia 119
Death 101
Lack of efficacy (endoparasite) - tapeworm 92
Overdose 87

Outcome Breakdown

Ongoing
1,133 (48.7%)
Recovered/Normal
683 (29.3%)
Outcome Unknown
355 (15.2%)
Died
107 (4.6%)
Euthanized
46 (2.0%)
Recovered with Sequela
4 (0.2%)

Fenbendazol Granules: high report volume in the FDA AER row

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.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Fenbendazol Granules, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (6.0% here), distinct from the volume row.

What to do with this drug

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Fenbendazol Granules (#89 of 2,679 by report volume); death-coded 6.0%. PlainBreed drug row · report volume stamp 2,491 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →