Drug profile

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

855 FDA reports name Ivermectin, Pyrantel Pamoate, Praziquantel, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#202 of 2,679
by report volume (all drugs)
855
adverse-event reports
3.2%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ivermectin, Pyrantel Pamoate, Praziquantel ranks #202 of 2679 by total reports (855) and #902 of 1130 by death-coded share (3.2%). 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)
#202
This drug, reports of 2679
#902
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, Praziquantel has 855 reports now versus 854 in that prior snapshot: 1 more (0.1%).

Report change
+1
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, Pyrantel Pamoate, Praziquantel changes

Signature read: 855 reports place Ivermectin, Pyrantel Pamoate, Praziquantel in the upper third of FDA AER volume (#202 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.
855
Total Reports
27
Deaths Reported
3.2%
Death-coded share of reports

Active Ingredients

Ivermectin, Pyrantel Pamoate, Praziquantel

Administration Routes

OralUnknownIntrauterineTopical

Species Affected

Dog 808
Unknown 40
Human 5
Rabbit 1
Cat 1

Most Affected Breeds

Crossbred Canine/dog 103
Retriever - Labrador 91
Dog (unknown) 69
Unknown 45
Shepherd Dog - German 40
Terrier - Yorkshire 33
Retriever - Golden 32
Chihuahua 30
Shih Tzu 29
Poodle (unspecified) 23

Most Reported Reactions

Vomiting 255
INEFFECTIVE, HEARTWORM LARVAE 203
Lack of efficacy (endoparasite) - hookworm 84
INEFFECTIVE, ASCARIDS NOS 84
Depression 81
Diarrhoea 62
Lack of efficacy (endoparasite) - tapeworm 53
Underfilling, Package 32
Anorexia 30
Accidental exposure 29
Convulsion 20
Lack of efficacy (endoparasite) - heartworm 19

Outcome Breakdown

Outcome Unknown
33 (48.5%)
Died
27 (39.7%)
Recovered/Normal
5 (7.4%)
Ongoing
3 (4.4%)

Ivermectin, Pyrantel Pamoate, Praziquantel: 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, Praziquantel, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Ivermectin, Pyrantel Pamoate, Praziquantel'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, Praziquantel (#202 of 2,679 by report volume); death-coded 3.2%. PlainBreed drug row · report volume stamp 855 · 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 →