Drug profile

The FDA adverse-event record for Pyrantel Pamoate/Praziquantel

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

961
adverse-event reports
7.1%
death-coded share
Dog
most-reported species
488
Vomiting - top reaction
Verify with FDA CVM →
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
961
Total Reports
68
Deaths Reported
7.1%
Death Rate

Active Ingredients

Pyrantel Pamoate/Praziquantel

Administration Routes

OralUnknownOphthalmic

Species Affected

Dog 932
Unknown 14
Human 8
Cat 7

Most Affected Breeds

Mixed (Dog) 164
Crossbred Canine/dog 115
Dog (unknown) 87
Chihuahua 69
American Pit Bull Terrier 63
Terrier - Yorkshire 39
Retriever - Labrador 37
Shih Tzu 29
Pit Bull 24
Unknown 22

Most Reported Reactions

Vomiting 488
Lethargy (see also Central nervous system depression in 'Neurological') 260
Diarrhoea 152
Not eating 73
Bloody diarrhoea 52
Death 51
Loose stool 45
Not drinking 45
Shaking 45
Anorexia 44
Overdose 42
Behavioural disorder NOS 33

Outcome Breakdown

Outcome Unknown
469 (49.5%)
Recovered/Normal
396 (41.8%)
Died
57 (6.0%)
Ongoing
15 (1.6%)
Euthanized
11 (1.2%)

Pyrantel Pamoate/Praziquantel Adverse Event Insights

961 reports name Pyrantel Pamoate/Praziquantel; 68 recorded a death outcome (7.1% of reported events, not a population-level mortality rate). Active ingredient: Pyrantel Pamoate/Praziquantel. Administration routes: Oral, Unknown, Ophthalmic.

By species: Dog (932 reports), Unknown (14 reports), Human (8 reports). By breed: Mixed (Dog) (164), Crossbred Canine/dog (115), Dog (unknown) (87).

Leading clinical signs: Vomiting (488), Lethargy (see also Central nervous system depression in 'Neurological') (260), Diarrhoea (152), Not eating (73). Outcome, 948 coded reports: Outcome Unknown leads at 49.5%.

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.