Drug profile

The FDA adverse-event record for Ivermectin, Pyrantel

12,066 FDA reports name Ivermectin, Pyrantel, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#21 of 2,679
by report volume (all drugs)
12,066
adverse-event reports
1.1%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ivermectin, Pyrantel ranks #21 of 2679 by total reports (12,066) and #1057 of 1130 by death-coded share (1.1%). 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)
#21
This drug, reports of 2679
#1057
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. Ivermectin, Pyrantel has 12,066 reports now versus 12,052 in that prior snapshot: 14 more (0.1%).

Report change
+14
Death-coded reports
+2
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 Ivermectin, Pyrantel changes

Signature read: 12,066 reports place Ivermectin, Pyrantel in the upper third of FDA AER volume (#21 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.
12,066
Total Reports
138
Deaths Reported
1.1%
Death-coded share of reports

Active Ingredients

Ivermectin, Pyrantel

Administration Routes

OralUnknownSubcutaneousTopicalIntramuscularRectal

Species Affected

Dog 11,032
Unknown 1,006
Cat 14
Human 12
Other 1
Ferret 1

Most Affected Breeds

Crossbred Canine/dog 2,932
Retriever - Labrador 1,771
Unknown 1,021
Shepherd Dog - German 515
Retriever - Golden 447
Dog (unknown) 409
Boxer (German Boxer) 274
Beagle 246
Dachshund (unspecified) 211
Chihuahua 190

Most Reported Reactions

INEFFECTIVE, HEARTWORM LARVAE 5,224
Lack of efficacy (endoparasite) - hookworm 2,186
INEFFECTIVE, ASCARIDS NOS 1,460
Vomiting 1,165
Diarrhoea 546
Tablets, Abnormal 511
Depression 482
Containers, Damaged 276
Anorexia 273
Convulsion 176
Underfilling, Package 173
Accidental exposure 143

Outcome Breakdown

Outcome Unknown
265 (43.7%)
Died
133 (21.9%)
Recovered/Normal
116 (19.1%)
Ongoing
75 (12.4%)
Recovered with Sequela
12 (2.0%)
Euthanized
5 (0.8%)

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

Similar report volume

Nearest other drugs by FDA report count (12,066 here).

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 Ivermectin, Pyrantel (#21 of 2,679 by report volume); death-coded 1.1%. PlainBreed drug row · report volume stamp 12,066 · 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 →