Drug profile

The FDA adverse-event record for Lokivetmab

199 FDA reports name Lokivetmab, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#535 of 2,679
by report volume (all drugs)
199
adverse-event reports
7.0%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Lokivetmab ranks #532 of 2679 by total reports (199) and #697 of 1130 by death-coded share (7.0%). 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)
#532
This drug, reports of 2679
#697
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. Lokivetmab has 199 reports now versus 193 in that prior snapshot: 6 more (3.1%).

Report change
+6
Death-coded reports
+0
Death-coded share
−0.2 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 Lokivetmab changes

Signature read: 199 reports place Lokivetmab in the upper third of FDA AER volume (#535 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.
199
Total Reports
14
Deaths Reported
7.0%
Death-coded share of reports

Active Ingredients

Lokivetmab

Administration Routes

UnknownSubcutaneousParenteralOralSubconjunctival

Species Affected

Dog 199

Most Affected Breeds

Retriever - Labrador 18
Shih Tzu 14
Terrier - Yorkshire 10
American Pit Bull Terrier 10
Chihuahua 8
Maltese 8
Shepherd Dog - German 7
Pit Bull 7
Beagle 6
Bulldog - French 6

Most Reported Reactions

Lack of efficacy - NOS 29
Vomiting 21
Lethargy (see also Central nervous system depression in Neurological) 18
Decreased appetite 17
Elevated serum alkaline phosphatase (SAP) 13
Diarrhoea 13
Elevated alanine aminotransferase (ALT) 12
Lethargy (see also Central nervous system depression in 'Neurological') 11
Ear discharge 10
Abnormal adrenocorticotropic hormone (ACTH) stimulation test 10
Not eating 10
Pain NOS 9

Outcome Breakdown

Outcome Unknown
107 (53.2%)
Recovered/Normal
48 (23.9%)
Ongoing
27 (13.4%)
Euthanized
9 (4.5%)
Died
5 (2.5%)
Recovered with Sequela
5 (2.5%)

Lokivetmab: high report volume 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 Lokivetmab, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

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 Lokivetmab (#535 of 2,679 by report volume); death-coded 7.0%. PlainBreed drug row · report volume stamp 199 · 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 →