Drug profile

The FDA adverse-event record for Praziquantel, Pyrantel Pamoate

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

371
adverse-event reports
8.6%
death-coded share
Dog
most-reported species
184
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.
371
Total Reports
32
Deaths Reported
8.6%
Death Rate

Active Ingredients

Praziquantel, Pyrantel Pamoate

Administration Routes

OralUnknownSubcutaneous

Species Affected

Dog 328
Cat 39
Human 2
Other 1
Unknown 1

Most Affected Breeds

Crossbred Canine/dog 69
Chihuahua 36
Domestic (unspecified) 34
Pit Bull 34
Dog (unknown) 24
Retriever - Labrador 15
Terrier - Yorkshire 14
Shih Tzu 13
Spitz - German Pomeranian 12
Dachshund (unspecified) 11

Most Reported Reactions

Vomiting 184
Depression 118
Anorexia 70
Diarrhoea 52
Ataxia 30
Death 22
Accidental exposure 21
Digestive tract disorder NOS 19
Bloody diarrhoea 17
Loose stool 15
Trembling 14
Haematochezia 14

Outcome Breakdown

Died
32 (97.0%)
Ongoing
1 (3.0%)

Praziquantel, Pyrantel Pamoate Adverse Event Insights

371 reports name Praziquantel, Pyrantel Pamoate; 32 recorded a death outcome (8.6% of reported events, not a population-level mortality rate). Active ingredient: Praziquantel, Pyrantel Pamoate. Administration routes: Oral, Unknown, Subcutaneous.

By species: Dog (328 reports), Cat (39 reports), Human (2 reports). By breed: Crossbred Canine/dog (69), Chihuahua (36), Domestic (unspecified) (34).

Leading clinical signs: Vomiting (184), Depression (118), Anorexia (70), Diarrhoea (52). Outcome, 33 coded reports: Died leads at 97.0%.

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.