Drug profile

The FDA adverse-event record for Milbemycin/Lufenuron Tablets

3,803 FDA reports name Milbemycin/Lufenuron Tablets, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#59 of 2,679
by report volume (all drugs)
3,803
adverse-event reports
1.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Milbemycin/Lufenuron Tablets ranks #59 of 2679 by total reports (3,803) and #1030 of 1130 by death-coded share (1.5%). 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)
#59
This drug, reports of 2679
#1030
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/Lufenuron Tablets has 3,803 reports now versus 3,740 in that prior snapshot: 63 more (1.7%).

Report change
+63
Death-coded reports
+3
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/Lufenuron Tablets changes

Signature read: 3,803 reports place Milbemycin/Lufenuron Tablets in the upper third of FDA AER volume (#59 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.
3,803
Total Reports
57
Deaths Reported
1.5%
Death-coded share of reports

Active Ingredients

Milbemycin/Lufenuron Tablets

Administration Routes

OralUnknownTopicalIontophoresis

Species Affected

Dog 3,676
Unknown 120
Human 7

Most Affected Breeds

Crossbred Canine/dog 1,038
Retriever - Labrador 395
Retriever - Golden 165
Shepherd Dog - German 156
Unknown 130
Dog (unknown) 101
Pit Bull 97
Shepherd Dog - Australian 95
Beagle 81
Chihuahua 66

Most Reported Reactions

Lack of efficacy (endoparasite) - heartworm 1,446
Lack of efficacy (endoparasite) - hookworm 589
Vomiting 324
Lack of efficacy (endoparasite) - roundworm NOS 315
Lack of efficacy (ectoparasite) - flea 212
Emesis (multiple) 141
Diarrhoea 132
Lethargy (see also Central nervous system depression in 'Neurological') 112
Drug dose omission 111
Lack of efficacy (endoparasite) - whipworm 98
INEFFECTIVE, HOOKS 84
Underfilling, Package 80

Outcome Breakdown

Ongoing
2,792 (75.8%)
Recovered/Normal
718 (19.5%)
Outcome Unknown
87 (2.4%)
Euthanized
31 (0.8%)
Recovered with Sequela
30 (0.8%)
Died
27 (0.7%)

Milbemycin/Lufenuron Tablets: 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/Lufenuron Tablets, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Milbemycin/Lufenuron Tablets'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/Lufenuron Tablets (#59 of 2,679 by report volume); death-coded 1.5%. PlainBreed drug row · report volume stamp 3,803 · 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 →