Drug profile

The FDA adverse-event record for Milbemycin Oxime,Praziquantel Micronized

287 FDA reports name Milbemycin Oxime,Praziquantel Micronized, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#433 of 2,679
by report volume (all drugs)
287
adverse-event reports
2.1%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Milbemycin Oxime,Praziquantel Micronized ranks #433 of 2679 by total reports (287) and #979 of 1130 by death-coded share (2.1%). 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)
#433
This drug, reports of 2679
#979
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. Milbemycin Oxime,Praziquantel Micronized has 287 reports now versus 248 in that prior snapshot: 39 more (15.7%).

Report change
+39
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 Milbemycin Oxime,Praziquantel Micronized changes

Signature read: 287 reports place Milbemycin Oxime,Praziquantel Micronized in the upper third of FDA AER volume (#433 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.
287
Total Reports
6
Deaths Reported
2.1%
Death-coded share of reports

Active Ingredients

Milbemycin Oxime,Praziquantel Micronized

Administration Routes

OralUnknownTopical

Species Affected

Dog 286
Unknown 1

Most Affected Breeds

Retriever - Labrador 42
Retriever - Golden 22
Crossbred Canine/dog 19
Shepherd Dog - German 14
Shepherd Dog - Australian 14
Dog (unknown) 11
Beagle 10
Terrier - Bull - American Pit 9
Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) 7
Collie - Border 6

Most Reported Reactions

Lack of efficacy (endoparasite) - heartworm 80
Vomiting 40
Lack of efficacy (endoparasite) - hookworm 39
Diarrhoea 26
Lack of efficacy (endoparasite) - tapeworm 22
Lack of efficacy (endoparasite) - roundworm NOS 19
Lethargy (see also Central nervous system depression in Neurological) 16
Lack of efficacy (bacteria) - Borrelia 10
Other abnormal test result NOS 10
Seizure NOS 9
Elevated alanine aminotransferase (ALT) 9
Not eating 9

Outcome Breakdown

Outcome Unknown
173 (60.5%)
Recovered/Normal
55 (19.2%)
Ongoing
52 (18.2%)
Euthanized
3 (1.0%)
Died
3 (1.0%)

Milbemycin Oxime,Praziquantel Micronized: 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 Milbemycin Oxime,Praziquantel Micronized, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (287 here).

Similar death-coded share

Nearest other drugs by death-coded share (2.1% here), distinct from the volume row.

What to do with this drug

  • Compare Milbemycin Oxime,Praziquantel Micronized'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 Milbemycin Oxime,Praziquantel Micronized (#433 of 2,679 by report volume); death-coded 2.1%. PlainBreed drug row · report volume stamp 287 · 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 →