Drug profile

The FDA adverse-event record for Ivermectin, Praziquantel

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

#322 of 2,679
by report volume (all drugs)
459
adverse-event reports
2.4%
death-coded share
Horse
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ivermectin, Praziquantel ranks #322 of 2679 by total reports (459) and #959 of 1130 by death-coded share (2.4%). 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)
#322
This drug, reports of 2679
#959
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, Praziquantel has 459 reports now versus 459 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, Praziquantel changes

Signature read: 459 reports place Ivermectin, Praziquantel in the upper third of FDA AER volume (#322 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.
459
Total Reports
11
Deaths Reported
2.4%
Death-coded share of reports

Active Ingredients

Ivermectin, Praziquantel

Administration Routes

OralUnknownTopicalSubcutaneous

Species Affected

Horse 390
Unknown 37
Dog 24
Human 2
Donkey 2
Cat 2
Chicken 2

Most Affected Breeds

Horse (unknown) 160
Thoroughbred 59
Unknown 39
Quarter Horse 39
Crossbred Equine/horse 25
Arab 23
Mixed (Horse) 19
Horse (other) 11
Paint 10
Appaloosa 8

Most Reported Reactions

Lip oedema (see also 'Skin') 199
Application site swelling 186
Hypersalivation 75
Tongue oedema 61
Anaphylaxis 53
Anaphylactoid reaction 46
Anorexia 44
Stomatitis 33
Abdominal pain 30
Facial oedema 27
Depression 25
Application site lesion 24

Outcome Breakdown

Recovered/Normal
27 (43.5%)
Outcome Unknown
20 (32.3%)
Died
11 (17.7%)
Ongoing
4 (6.5%)

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

Similar report volume

Nearest other drugs by FDA report count (459 here).

What to do with this drug

  • Compare Ivermectin, 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, Praziquantel (#322 of 2,679 by report volume); death-coded 2.4%. PlainBreed drug row · report volume stamp 459 · 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 →