Drug profile

The FDA adverse-event record for Praziquantel, Pyrantel Pamoate

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

#366 of 2,679
by report volume (all drugs)
371
adverse-event reports
8.6%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Praziquantel, Pyrantel Pamoate ranks #365 of 2679 by total reports (371) and #611 of 1130 by death-coded share (8.6%). 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)
#365
This drug, reports of 2679
#611
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. Praziquantel, Pyrantel Pamoate has 371 reports now versus 371 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 Praziquantel, Pyrantel Pamoate changes

Signature read: 371 reports place Praziquantel, Pyrantel Pamoate in the upper third of FDA AER volume (#366 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.
371
Total Reports
32
Deaths Reported
8.6%
Death-coded share of reports

Active Ingredients

Praziquantel, Pyrantel Pamoate

Administration Routes

OralUnknownSubcutaneous

Species Affected

Dog 328
Cat 39
Human 2
Other 1
Unknown 1

Most Affected Breeds

Crossbred Canine/dog 69
Chihuahua 36
Domestic (unspecified) 34
Pit Bull 34
Dog (unknown) 24
Retriever - Labrador 15
Terrier - Yorkshire 14
Shih Tzu 13
Spitz - German Pomeranian 12
Dachshund (unspecified) 11

Most Reported Reactions

Vomiting 184
Depression 118
Anorexia 70
Diarrhoea 52
Ataxia 30
Death 22
Accidental exposure 21
Digestive tract disorder NOS 19
Bloody diarrhoea 17
Loose stool 15
Haematochezia 14
Trembling 14

Outcome Breakdown

Died
32 (97.0%)
Ongoing
1 (3.0%)

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

Similar report volume

Nearest other drugs by FDA report count (371 here).

Similar death-coded share

Nearest other drugs by death-coded share (8.6% here), distinct from the volume row.

What to do with this drug

  • Compare Praziquantel, Pyrantel Pamoate'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 Praziquantel, Pyrantel Pamoate (#366 of 2,679 by report volume); death-coded 8.6%. PlainBreed drug row · report volume stamp 371 · 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 →