Drug profile

The FDA adverse-event record for Spinetoram

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

#464 of 2,679
by report volume (all drugs)
259
adverse-event reports
4.2%
death-coded share
Cat
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Spinetoram ranks #462 of 2679 by total reports (259) and #831 of 1130 by death-coded share (4.2%). 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)
#462
This drug, reports of 2679
#831
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. Spinetoram has 259 reports now versus 258 in that prior snapshot: 1 more (0.4%).

Report change
+1
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 Spinetoram changes

Signature read: 259 reports place Spinetoram in the upper third of FDA AER volume (#464 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.
259
Total Reports
11
Deaths Reported
4.2%
Death-coded share of reports

Active Ingredients

Spinetoram

Administration Routes

TopicalUnknownOralOther

Species Affected

Cat 258
Dog 1

Most Affected Breeds

Domestic Shorthair 136
Domestic Longhair 27
Cat (unknown) 26
Siamese 20
Domestic Mediumhair 14
Maine Coon 10
American Shorthair 4
Persian 3
Ragdoll 3
Cat (other) 3

Most Reported Reactions

Lack of efficacy (ectoparasite) - flea 65
Vomiting 44
Application site hair loss 32
Lethargy (see also Central nervous system depression in 'Neurological') 30
Lack of efficacy (flea) 26
Pruritus 20
Lack of efficacy - NOS 19
Behavioural disorder NOS 18
Other abnormal test result NOS 13
Emesis 12
Weight loss 12
Lack of efficacy (tapeworm) 11

Outcome Breakdown

Outcome Unknown
140 (54.1%)
Recovered/Normal
51 (19.7%)
Ongoing
51 (19.7%)
Recovered with Sequela
6 (2.3%)
Died
6 (2.3%)
Euthanized
5 (1.9%)

Spinetoram: 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 Spinetoram, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (259 here).

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 Spinetoram (#464 of 2,679 by report volume); death-coded 4.2%. PlainBreed drug row · report volume stamp 259 · 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 →