Drug profile

The FDA adverse-event record for Pyrantel Pamoate

2,676 FDA reports name Pyrantel Pamoate, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#84 of 2,679
by report volume (all drugs)
2,676
adverse-event reports
12.0%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Pyrantel Pamoate ranks #84 of 2679 by total reports (2,676) and #457 of 1130 by death-coded share (12.0%). 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)
#84
This drug, reports of 2679
#457
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. Pyrantel Pamoate has 2,676 reports now versus 2,661 in that prior snapshot: 15 more (0.6%).

Report change
+15
Death-coded reports
+3
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 Pyrantel Pamoate changes

Signature read: death-coded report count at 322 is the most distinctive stamp on Pyrantel Pamoate'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.
2,676
Total Reports
322
Deaths Reported
12.0%
Death-coded share of reports

Active Ingredients

Pyrantel Pamoate

Administration Routes

OralUnknownTopicalSubcutaneousParenteralOphthalmicNasal

Species Affected

Dog 2,381
Cat 186
Unknown 44
Human 41
Horse 18
Other 5
Pig 1

Most Affected Breeds

Unknown 210
Crossbred Canine/dog 198
Dog (unknown) 170
Retriever - Labrador 165
Chihuahua 128
Pit Bull 123
Domestic Shorthair 105
Boxer (German Boxer) 94
Shepherd Dog - German 74
Retriever - Golden 71

Most Reported Reactions

Vomiting 745
Lethargy (see also Central nervous system depression in 'Neurological') 368
Diarrhoea 367
Anorexia 240
Death 228
Emesis 197
Depression 158
Lack of efficacy (endoparasite) - hookworm 127
No sign 123
Accidental exposure 109
Facial swelling (see also 'Skin') 107
Ataxia 103

Outcome Breakdown

Recovered/Normal
669 (30.8%)
Outcome Unknown
639 (29.4%)
Ongoing
515 (23.7%)
Died
256 (11.8%)
Euthanized
68 (3.1%)
Recovered with Sequela
23 (1.1%)

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

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 Pyrantel Pamoate (#84 of 2,679 by report volume); death-coded 12.0%. PlainBreed drug row · death-coded report count stamp 322 · 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 →