Drug profile

The FDA adverse-event record for Ivermectin 272Mcg, Pyrantel 227Mg

1,038 FDA reports name Ivermectin 272Mcg, Pyrantel 227Mg, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#176 of 2,679
by report volume (all drugs)
1,038
adverse-event reports
2.2%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ivermectin 272Mcg, Pyrantel 227Mg ranks #175 of 2679 by total reports (1,038) and #972 of 1130 by death-coded share (2.2%). 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)
#175
This drug, reports of 2679
#972
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 272Mcg, Pyrantel 227Mg has 1,038 reports now versus 1,038 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
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 272Mcg, Pyrantel 227Mg changes

Signature read: 1,038 reports place Ivermectin 272Mcg, Pyrantel 227Mg in the upper third of FDA AER volume (#176 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.
1,038
Total Reports
23
Deaths Reported
2.2%
Death-coded share of reports

Active Ingredients

Ivermectin 272Mcg, Pyrantel 227Mg

Administration Routes

OralUnknown

Species Affected

Dog 988
Unknown 47
Human 2
Cat 1

Most Affected Breeds

Retriever - Labrador 294
Shepherd Dog - German 99
Retriever - Golden 69
Crossbred Canine/dog 61
Unknown 49
Dog (unknown) 47
Boxer (German Boxer) 36
American Pit Bull Terrier 34
Rottweiler 33
Siberian Husky 18

Most Reported Reactions

INEFFECTIVE, HEARTWORM LARVAE 477
Lack of efficacy - NOS 200
Vomiting 142
Lack of efficacy (endoparasite) - hookworm 133
INEFFECTIVE, ASCARIDS NOS 108
Diarrhoea 75
Drug dose administration interval too long 60
Lethargy (see also Central nervous system depression in 'Neurological') 60
Drug dose omission 46
Underfilling, Package 27
Overdose 25
Uncoded sign 23

Outcome Breakdown

Outcome Unknown
637 (64.3%)
Recovered/Normal
260 (26.2%)
Recovered with Sequela
36 (3.6%)
Ongoing
35 (3.5%)
Died
15 (1.5%)
Euthanized
8 (0.8%)

Ivermectin 272Mcg, Pyrantel 227Mg: 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 272Mcg, Pyrantel 227Mg, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Ivermectin 272Mcg, Pyrantel 227Mg'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 272Mcg, Pyrantel 227Mg (#176 of 2,679 by report volume); death-coded 2.2%. PlainBreed drug row · report volume stamp 1,038 · 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 →