Drug profile

The FDA adverse-event record for Advantage Multi

58 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Advantage Multi. Species, reactions, and outcomes follow.

#1025 of 2,679
by report volume (all drugs)
58
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, Advantage Multi ranks #1025 of 2679 by total reports (58) and #785 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)
#1025
This drug, reports of 2679
#785
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. Advantage Multi has 58 reports now versus 58 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 Advantage Multi changes

Signature read: Advantage Multi's 5.2% death-coded share is among the lowest in the openFDA drug corpus.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
58
Total Reports
3
Deaths Reported
5.2%
Death-coded share of reports

Active Ingredients

Advantage Multi

Administration Routes

TopicalUnknownOral

Species Affected

Dog 54
Cat 4

Most Affected Breeds

Retriever - Labrador 6
Chihuahua 5
Crossbred Canine/dog 4
Boxer (German Boxer) 2
Siberian Husky 2
Black Mouth Cur 2
Terrier (unspecified) 2
Retriever - Golden 2
Shepherd Dog - Australian 2
Greyhound 2

Most Reported Reactions

Lack of efficacy (endoparasite) - heartworm 41
Overdose 4
Decreased appetite 4
Elevated total bilirubin 4
Weight loss 4
Anaemia NOS 3
Neutropenia 3
Lymphopenia 3
Hypoproteinaemia 3
Anxiety 2
Other abnormal test result NOS 2
Drug dose administration interval too long 2

Outcome Breakdown

Ongoing
41 (70.7%)
Outcome Unknown
13 (22.4%)
Died
2 (3.4%)
Euthanized
1 (1.7%)
Recovered/Normal
1 (1.7%)

Advantage Multi: 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.

Nationwide drugs with similar profiles

Two openFDA-derived peer sets for Advantage Multi, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (58 here).

Similar death-coded share

Nearest other drugs by death-coded share (5.2% here), distinct from the volume row.

What to do with this drug

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 Advantage Multi (#1025 of 2,679 by report volume); death-coded 5.2%. PlainBreed drug row · death-coded share stamp 5.2% · 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 →