Drug profile

The FDA adverse-event record for Pyrantel Pamoate

2,643 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Pyrantel Pamoate. See the species affected, top reactions, and outcomes below.

2,643
adverse-event reports
12.0%
death-coded share
Dog
most-reported species
740
Vomiting - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
2,643
Total Reports
316
Deaths Reported
12.0%
Death Rate

Active Ingredients

Pyrantel Pamoate

Administration Routes

OralUnknownTopicalSubcutaneousParenteralOphthalmicNasal

Species Affected

Dog 2,354
Cat 180
Unknown 44
Human 41
Horse 18
Other 5
Pig 1

Most Affected Breeds

Unknown 202
Crossbred Canine/dog 197
Dog (unknown) 170
Retriever - Labrador 162
Chihuahua 128
Pit Bull 123
Domestic Shorthair 102
Boxer (German Boxer) 94
Shepherd Dog - German 72
Retriever - Golden 70

Most Reported Reactions

Vomiting 740
Lethargy (see also Central nervous system depression in 'Neurological') 369
Diarrhoea 362
Anorexia 240
Death 225
Emesis 197
Depression 158
No sign 123
Lack of efficacy (endoparasite) - hookworm 121
Accidental exposure 109
Facial swelling (see also 'Skin') 107
Ataxia 101

Outcome Breakdown

Recovered/Normal
663 (31.0%)
Outcome Unknown
623 (29.2%)
Ongoing
509 (23.8%)
Died
252 (11.8%)
Euthanized
66 (3.1%)
Recovered with Sequela
23 (1.1%)

Pyrantel Pamoate Adverse Event Insights

2,643 reports name Pyrantel Pamoate; 316 recorded a death outcome (12.0% of reported events, not a population-level mortality rate). Active ingredient: Pyrantel Pamoate. Administration routes: Oral, Unknown, Topical, Subcutaneous.

By species: Dog (2,354 reports), Cat (180 reports), Unknown (44 reports). By breed: Unknown (202), Crossbred Canine/dog (197), Dog (unknown) (170).

Leading clinical signs: Vomiting (740), Lethargy (see also Central nervous system depression in 'Neurological') (369), Diarrhoea (362), Anorexia (240). Outcome, 2,136 coded reports: Recovered/Normal leads at 31.0%.

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.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.