Drug profile

The FDA adverse-event record for Praziquantel/Pyrantel Pamoate/Febantel

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

#455 of 2,679
by report volume (all drugs)
270
adverse-event reports
5.2%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Praziquantel/Pyrantel Pamoate/Febantel ranks #455 of 2679 by total reports (270) and #783 of 1130 by death-coded share (5.2%). 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)
#455
This drug, reports of 2679
#783
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/Febantel has 270 reports now versus 268 in that prior snapshot: 2 more (0.7%).

Report change
+2
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/Febantel changes

Signature read: 270 reports place Praziquantel/Pyrantel Pamoate/Febantel in the upper third of FDA AER volume (#455 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.
270
Total Reports
14
Deaths Reported
5.2%
Death-coded share of reports

Active Ingredients

Praziquantel/Pyrantel Pamoate/Febantel

Administration Routes

OralUnknownTopicalOther

Species Affected

Dog 264
Unknown 3
Cat 2
Human 1

Most Affected Breeds

Dog (unknown) 58
Chihuahua 24
Crossbred Canine/dog 18
Retriever - Labrador 15
Mixed (Dog) 12
Shih Tzu 10
Shepherd Dog - German 9
Retriever - Golden 9
Terrier - Yorkshire 7
Boxer (German Boxer) 7

Most Reported Reactions

Vomiting 71
Diarrhoea 47
Emesis (multiple) 40
Emesis 32
Anorexia 27
Lethargy (see also Central nervous system depression in 'Neurological') 26
Loose stool 16
Lack of efficacy (endoparasite) - tapeworm 15
Underdose 13
Death 11
Behavioural disorder NOS 10
INEFFECTIVE, WORMS 9

Outcome Breakdown

Outcome Unknown
146 (54.9%)
Recovered/Normal
100 (37.6%)
Died
11 (4.1%)
Ongoing
6 (2.3%)
Euthanized
3 (1.1%)

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

What to do with this drug

  • Compare Praziquantel/Pyrantel Pamoate/Febantel'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/Febantel (#455 of 2,679 by report volume); death-coded 5.2%. PlainBreed drug row · report volume stamp 270 · 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 →