Drug profile

The FDA adverse-event record for Ivermectin 68Mcg Pyrantel 57Mg

833 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Ivermectin 68Mcg Pyrantel 57Mg. See the species affected, top reactions, and outcomes below.

833
adverse-event reports
2.0%
death-coded share
Dog
most-reported species
340
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.
833
Total Reports
17
Deaths Reported
2.0%
Death Rate

Active Ingredients

Ivermectin 68Mcg Pyrantel 57Mg

Administration Routes

OralUnknown

Species Affected

Dog 778
Unknown 53
Human 1
Cat 1

Most Affected Breeds

Terrier - Yorkshire 83
Chihuahua 73
Unknown 54
Maltese 54
Shih Tzu 46
Poodle - Toy 38
Dachshund (unspecified) 37
Dog (unknown) 34
Crossbred Canine/dog 26
Retriever - Labrador 25

Most Reported Reactions

Vomiting 340
INEFFECTIVE, HEARTWORM LARVAE 144
Lethargy (see also Central nervous system depression in 'Neurological') 130
Diarrhoea 102
Lack of efficacy (endoparasite) - hookworm 94
Lack of efficacy - NOS 71
INEFFECTIVE, ASCARIDS NOS 47
Underfilling, Package 41
Behavioural disorder NOS 21
Underdose 20
Uncoded sign 19
Seizure NOS 19

Outcome Breakdown

Recovered/Normal
431 (55.2%)
Outcome Unknown
310 (39.7%)
Ongoing
13 (1.7%)
Recovered with Sequela
10 (1.3%)
Euthanized
9 (1.2%)
Died
8 (1.0%)

Ivermectin 68Mcg Pyrantel 57Mg Adverse Event Insights

833 reports name Ivermectin 68Mcg Pyrantel 57Mg; 17 recorded a death outcome (2.0% of reported events, not a population-level mortality rate). Active ingredient: Ivermectin 68Mcg Pyrantel 57Mg. Administration routes: Oral, Unknown.

By species: Dog (778 reports), Unknown (53 reports), Human (1 reports). By breed: Terrier - Yorkshire (83), Chihuahua (73), Unknown (54).

Leading clinical signs: Vomiting (340), INEFFECTIVE, HEARTWORM LARVAE (144), Lethargy (see also Central nervous system depression in 'Neurological') (130), Diarrhoea (102). Outcome, 781 coded reports: Recovered/Normal leads at 55.2%.

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.