Drug profile

The FDA adverse-event record for Fenbendazol Oral Paste

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

#602 of 2,679
by report volume (all drugs)
161
adverse-event reports
10.6%
death-coded share
Horse
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Fenbendazol Oral Paste ranks #602 of 2679 by total reports (161) and #525 of 1130 by death-coded share (10.6%). 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)
#602
This drug, reports of 2679
#525
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 Oral Paste has 161 reports now versus 161 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
+0.0 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 Oral Paste changes

Signature read: 161 reports place Fenbendazol Oral Paste in the upper third of FDA AER volume (#602 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.
161
Total Reports
17
Deaths Reported
10.6%
Death-coded share of reports

Active Ingredients

Fenbendazol Oral Paste

Administration Routes

OralUnknown

Species Affected

Horse 69
Unknown 39
Dog 38
Cattle 4
Human 4
Cat 3
Pig 1
Turkey 1
Mule 1
Sheep 1

Most Affected Breeds

Unknown 44
Quarter Horse 21
Horse (unknown) 13
Crossbred Canine/dog 11
Thoroughbred 10
Paint 4
Mixed (Horse) 3
Dog (unknown) 3
Terrier - Yorkshire 3
Shepherd Dog - Australian 3

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 19
INEFFECTIVE, STRONGYLES 14
Product problem 10
Uncoded sign 9
Underfilling, Container 9
Underfilling, Package 8
Diarrhoea 8
Ataxia 8
Drug administration error 8
Product Defect, General 8
Death 8
Weight loss 7

Outcome Breakdown

Ongoing
50 (39.4%)
Recovered/Normal
37 (29.1%)
Outcome Unknown
20 (15.7%)
Died
11 (8.7%)
Euthanized
6 (4.7%)
Recovered with Sequela
3 (2.4%)

Fenbendazol Oral Paste: 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 Oral Paste, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Fenbendazol Oral Paste'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 Oral Paste (#602 of 2,679 by report volume); death-coded 10.6%. PlainBreed drug row · report volume stamp 161 · 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 →