Drug profile

The FDA adverse-event record for Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet

2,252 FDA reports name Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#101 of 2,679
by report volume (all drugs)
2,252
adverse-event reports
1.9%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet ranks #101 of 2679 by total reports (2,252) and #998 of 1130 by death-coded share (1.9%). 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)
#101
This drug, reports of 2679
#998
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. Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet has 2,252 reports now versus 2,052 in that prior snapshot: 200 more (9.7%).

Report change
+200
Death-coded reports
+1
Death-coded share
−0.1 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 Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet changes

Signature read: 2,252 reports place Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet in the upper third of FDA AER volume (#101 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.
2,252
Total Reports
42
Deaths Reported
1.9%
Death-coded share of reports

Active Ingredients

Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet

Administration Routes

OralUnknownParenteralPerineural

Species Affected

Dog 2,018
Unknown 234

Most Affected Breeds

Retriever - Labrador 473
Shepherd Dog - German 245
Unknown 234
Retriever - Golden 228
Dog (unknown) 161
Pit Bull 80
Crossbred Canine/dog 71
Great Pyrenees 65
Mountain Dog - Bernese 54
Boxer (German Boxer) 45

Most Reported Reactions

Vomiting 323
Lack of efficacy (endoparasite) - heartworm 302
Tablets, Abnormal 245
Lack of efficacy (bacteria) - Borrelia 189
Diarrhoea 175
Lack of efficacy (endoparasite) - hookworm 169
Lethargy (see also Central nervous system depression in Neurological) 157
Lack of efficacy (endoparasite) - roundworm NOS 125
Seizure NOS 123
Lack of efficacy (endoparasite) - tapeworm 108
Lack of efficacy (bacteria) - Anaplasma 105
Itching 81

Outcome Breakdown

Outcome Unknown
1,115 (55.3%)
Recovered/Normal
491 (24.3%)
Ongoing
370 (18.3%)
Died
22 (1.1%)
Euthanized
20 (1.0%)

Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet: 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 Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (1.9% here), distinct from the volume row.

What to do with this drug

  • Compare Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet'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 Afoxolaner 150Mg / Moxidectin 720Mcg / Pyrantel 300Mg Chewable Tablet (#101 of 2,679 by report volume); death-coded 1.9%. PlainBreed drug row · report volume stamp 2,252 · 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 →