Drug profile

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

305 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.

305
adverse-event reports
3.0%
death-coded share
Dog
most-reported species
97
Emesis - 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.
305
Total Reports
9
Deaths Reported
3.0%
Death Rate

Active Ingredients

Ivermectin + Pyrantel Pamoate + Praziquantel

Administration Routes

OralUnknown

Species Affected

Dog 305

Most Affected Breeds

Retriever - Labrador 52
Terrier - Yorkshire 18
Chihuahua 17
Crossbred Canine/dog 15
Boxer (German Boxer) 13
Beagle 11
Poodle (unspecified) 10
Retriever (unspecified) 9
Terrier (unspecified) 9
Shepherd Dog - German 9

Most Reported Reactions

Emesis 97
Lack of efficacy (endoparasite) - heartworm 55
Vomiting 35
INEFFECTIVE, HEARTWORM LARVAE 32
Lethargy (see also Central nervous system depression in 'Neurological') 30
Lack of efficacy (ectoparasite) - flea 25
Seizure NOS 15
Diarrhoea 14
Lack of efficacy - NOS 13
Emesis (multiple) 13
Other abnormal test result NOS 13
Behavioural disorder NOS 11

Outcome Breakdown

Recovered/Normal
137 (44.9%)
Outcome Unknown
118 (38.7%)
Ongoing
23 (7.5%)
Recovered with Sequela
18 (5.9%)
Died
7 (2.3%)
Euthanized
2 (0.7%)

Ivermectin + Pyrantel Pamoate + Praziquantel Adverse Event Insights

305 reports name Ivermectin + Pyrantel Pamoate + Praziquantel; 9 recorded a death outcome (3.0% of reported events, not a population-level mortality rate). Active ingredient: Ivermectin + Pyrantel Pamoate + Praziquantel. Administration routes: Oral, Unknown.

By species: Dog (305 reports). By breed: Retriever - Labrador (52), Terrier - Yorkshire (18), Chihuahua (17).

Leading clinical signs: Emesis (97), Lack of efficacy (endoparasite) - heartworm (55), Vomiting (35), INEFFECTIVE, HEARTWORM LARVAE (32). Outcome, 305 coded reports: Recovered/Normal leads at 44.9%.

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.