Drug profile

The FDA adverse-event record for Pyrantel Pamoate (Pyrantel Embonate)

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

502
adverse-event reports
14.3%
death-coded share
Dog
most-reported species
90
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.
502
Total Reports
72
Deaths Reported
14.3%
Death Rate

Active Ingredients

Pyrantel Pamoate (Pyrantel Embonate)

Administration Routes

OralUnknownSubcutaneous

Species Affected

Dog 385
Cat 57
Unknown 30
Horse 29
Goat 1

Most Affected Breeds

Retriever - Labrador 40
Dog (unknown) 38
Domestic Shorthair 32
Unknown 30
Chihuahua 22
Terrier - Yorkshire 18
Retriever - Golden 14
Terrier - Bull - American Pit 13
Shepherd Dog - German 12
Beagle 11

Most Reported Reactions

Vomiting 90
Lethargy (see also Central nervous system depression in 'Neurological') 77
Diarrhoea 73
Lack of efficacy (endoparasite) - hookworm 57
Death 50
Facial swelling (see also 'Skin') 38
Anorexia 36
INEFFECTIVE, ASCARIDS NOS 27
Anaphylactoid reaction 26
Lack of efficacy (endoparasite) - roundworm NOS 26
Seizure NOS 21
Fever 21

Outcome Breakdown

Ongoing
154 (31.7%)
Outcome Unknown
150 (30.9%)
Recovered/Normal
109 (22.4%)
Died
56 (11.5%)
Euthanized
17 (3.5%)

Pyrantel Pamoate (Pyrantel Embonate) Adverse Event Insights

502 reports name Pyrantel Pamoate (Pyrantel Embonate); 72 recorded a death outcome (14.3% of reported events, not a population-level mortality rate). Active ingredient: Pyrantel Pamoate (Pyrantel Embonate). Administration routes: Oral, Unknown, Subcutaneous.

By species: Dog (385 reports), Cat (57 reports), Unknown (30 reports). By breed: Retriever - Labrador (40), Dog (unknown) (38), Domestic Shorthair (32).

Leading clinical signs: Vomiting (90), Lethargy (see also Central nervous system depression in 'Neurological') (77), Diarrhoea (73), Lack of efficacy (endoparasite) - hookworm (57). Outcome, 486 coded reports: Ongoing leads at 31.7%.

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.