Drug profile

The FDA adverse-event record for Fenbendazol Suspension

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

#187 of 2,679
by report volume (all drugs)
964
adverse-event reports
36.3%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Fenbendazol Suspension ranks #187 of 2679 by total reports (964) and #95 of 1130 by death-coded share (36.3%). 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)
#187
This drug, reports of 2679
#95
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 Suspension has 964 reports now versus 937 in that prior snapshot: 27 more (2.9%).

Report change
+27
Death-coded reports
+8
Death-coded share
−0.2 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 Suspension changes

Signature read: death-coded report count at 350 is the most distinctive stamp on Fenbendazol Suspension's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
964
Total Reports
350
Deaths Reported
36.3%
Death-coded share of reports

Active Ingredients

Fenbendazol Suspension

Administration Routes

OralUnknownTopicalSubcutaneousOtherIntravenousSubconjunctival

Species Affected

Dog 368
Cattle 328
Unknown 153
Cat 51
Goat 29
Human 12
Sheep 6
Snake 4
Pig 3
Alpaca 2

Most Affected Breeds

Cattle (other) 181
Unknown 178
Crossbred Canine/dog 61
Crossbred Bovine/Cattle 50
Aberdeen Angus 46
Domestic Shorthair 32
Dog (unknown) 25
Shepherd Dog - German 22
Beagle 20
Retriever - Labrador 19

Most Reported Reactions

Death 300
Lack of efficacy - NOS 130
Diarrhoea 74
Lack of efficacy (endoparasite) - hookworm 62
Lethargy (see also Central nervous system depression in 'Neurological') 59
Containers, Leaking 52
Odor, Abnormal 48
Death by euthanasia 43
Vomiting 42
Drug administration error 41
Lack of efficacy (bacteria) - NOS 34
Emesis (multiple) 33

Outcome Breakdown

Ongoing
338 (30.1%)
Died
319 (28.4%)
Recovered/Normal
261 (23.3%)
Outcome Unknown
153 (13.6%)
Euthanized
44 (3.9%)
Recovered with Sequela
7 (0.6%)

Fenbendazol Suspension: high death-coded share 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 Suspension, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (36.3% here), distinct from the volume row.

What to do with this drug

  • Compare Fenbendazol Suspension's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

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 Suspension (#187 of 2,679 by report volume); death-coded 36.3%. PlainBreed drug row · death-coded report count stamp 350 · 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 →