Drug profile

The FDA adverse-event record for Ivermectin/Pyrantel Pamoate/Praziquantel

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

787
adverse-event reports
0.8%
death-coded share
Dog
most-reported species
376
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.
787
Total Reports
6
Deaths Reported
0.8%
Death Rate

Active Ingredients

Ivermectin/Pyrantel Pamoate/Praziquantel

Administration Routes

OralUnknown

Species Affected

Dog 765
Unknown 22

Most Affected Breeds

Retriever - Labrador 80
Crossbred Canine/dog 49
Shih Tzu 37
Dog (unknown) 32
Maltese 32
Chihuahua 31
Terrier - Yorkshire 29
Beagle 25
Unknown 22
Shepherd Dog - German 21

Most Reported Reactions

Vomiting 376
Lack of efficacy - NOS 143
INEFFECTIVE, HEARTWORM LARVAE 96
Diarrhoea 91
Lack of efficacy (endoparasite) - hookworm 85
INEFFECTIVE, ASCARIDS NOS 73
Lethargy (see also Central nervous system depression in 'Neurological') 72
Overdose 21
Panting 16
Uncoded sign 15
Underfilling, Package 15
Lack of efficacy (endoparasite) - tapeworm 14

Outcome Breakdown

Recovered/Normal
420 (54.9%)
Outcome Unknown
291 (38.0%)
Ongoing
38 (5.0%)
Recovered with Sequela
10 (1.3%)
Died
3 (0.4%)
Euthanized
3 (0.4%)

Ivermectin/Pyrantel Pamoate/Praziquantel Adverse Event Insights

787 reports name Ivermectin/Pyrantel Pamoate/Praziquantel; 6 recorded a death outcome (0.8% of reported events, not a population-level mortality rate). Active ingredient: Ivermectin/Pyrantel Pamoate/Praziquantel. Administration routes: Oral, Unknown.

By species: Dog (765 reports), Unknown (22 reports). By breed: Retriever - Labrador (80), Crossbred Canine/dog (49), Shih Tzu (37).

Leading clinical signs: Vomiting (376), Lack of efficacy - NOS (143), INEFFECTIVE, HEARTWORM LARVAE (96), Diarrhoea (91). Outcome, 765 coded reports: Recovered/Normal leads at 54.9%.

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.