Drug profile

The FDA adverse-event record for Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg

5,778 FDA reports name Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#39 of 2,679
by report volume (all drugs)
5,778
adverse-event reports
0.8%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg ranks #39 of 2679 by total reports (5,778) and #1080 of 1130 by death-coded share (0.8%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#39
This drug, reports of 2679
#1080
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg has 5,778 reports now versus 5,777 in that prior snapshot: 1 more (0.0%).

Report change
+1
Death-coded reports
+1
Death-coded share
+0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg changes

Signature read: 5,778 reports place Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg in the upper third of FDA AER volume (#39 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
5,778
Total Reports
48
Deaths Reported
0.8%
Death-coded share of reports

Active Ingredients

Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg

Administration Routes

OralUnknownTopical

Species Affected

Dog 5,555
Unknown 217
Cat 3
Other Canids 3

Most Affected Breeds

Retriever - Labrador 1,601
Crossbred Canine/dog 613
Retriever - Golden 538
Shepherd Dog - German 434
Unknown 222
Boxer (German Boxer) 208
Pit Bull 172
Greyhound 147
Dog (unknown) 131
Dog (other) 121

Most Reported Reactions

Digestive tract disorder NOS 2,623
INEFFECTIVE, HEARTWORM LARVAE 1,943
Cardiac disorder NOS 1,897
Lack of efficacy (endoparasite) - hookworm 1,376
INEFFECTIVE, ASCARIDS NOS 902
Lack of efficacy - NOS 728
Vomiting 541
Diarrhoea 369
Lethargy (see also Central nervous system depression in 'Neurological') 302
Lack of efficacy (protozoa) - Coccidia 199
Lack of efficacy (endoparasite) - heartworm 189
Lack of efficacy (endoparasite) - whipworm 104

Outcome Breakdown

Outcome Unknown
3,307 (59.3%)
Recovered with Sequela
1,240 (22.2%)
Recovered/Normal
675 (12.1%)
Ongoing
308 (5.5%)
Died
27 (0.5%)
Euthanized
21 (0.4%)

Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg: low death-coded share in the FDA AER row

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.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Ivermectin/Pyrantel Pamoate Chewable 272Mcg/652Mg (#39 of 2,679 by report volume); death-coded 0.8%. PlainBreed drug row · report volume stamp 5,778 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →