Drug profile

The FDA adverse-event record for Albendazole

369 FDA reports name Albendazole, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#369 of 2,679
by report volume (all drugs)
369
adverse-event reports
43.9%
death-coded share
Cattle
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Albendazole ranks #369 of 2679 by total reports (369) and #77 of 1130 by death-coded share (43.9%). 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)
#369
This drug, reports of 2679
#77
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. Albendazole has 369 reports now versus 369 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 Albendazole changes

Signature read: death-coded report count at 162 is the most distinctive stamp on Albendazole'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.
369
Total Reports
162
Deaths Reported
43.9%
Death-coded share of reports

Active Ingredients

Albendazole

Administration Routes

OralUnknownIntrauterineTopicalSubcutaneous

Species Affected

Cattle 178
Sheep 66
Unknown 52
Goat 31
Dog 29
Chicken 2
Human 2
Buffalo 2
Other Rodents 1
Turkey 1

Most Affected Breeds

Mixed (Cattle) 87
Unknown 59
Cattle (other) 45
Sheep (unknown) 40
Aberdeen Angus 20
Goat (unknown) 20
Cattle (unknown) 8
Katahdin 7
Dog (unknown) 6
Crossbred Bovine/Cattle 5

Most Reported Reactions

Death 110
Lack of efficacy (bacteria) - NOS 30
Lack of efficacy - NOS 28
Anorexia 19
INEFFECTIVE, WORMS NOS 18
Diarrhoea 17
Unexplained death 16
Overdose 16
Lethargy (see also Central nervous system depression in 'Neurological') 16
INEFFECTIVE, WORMS 16
No sign 15
Lack of efficacy (endoparasite) - trematode 14

Outcome Breakdown

Outcome Unknown
165 (42.1%)
Died
159 (40.6%)
Recovered/Normal
28 (7.1%)
Ongoing
25 (6.4%)
Euthanized
9 (2.3%)
Recovered with Sequela
6 (1.5%)

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

Similar report volume

Nearest other drugs by FDA report count (369 here).

Similar death-coded share

Nearest other drugs by death-coded share (43.9% 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 Albendazole (#369 of 2,679 by report volume); death-coded 43.9%. PlainBreed drug row · death-coded report count stamp 162 · 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 →