Drug profile

The FDA adverse-event record for Entyce

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

#648 of 2,679
by report volume (all drugs)
141
adverse-event reports
45.4%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Entyce ranks #647 of 2679 by total reports (141) and #73 of 1130 by death-coded share (45.4%). 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)
#647
This drug, reports of 2679
#73
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. Entyce has 141 reports now versus 139 in that prior snapshot: 2 more (1.4%).

Report change
+2
Death-coded reports
+0
Death-coded share
−0.7 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 Entyce changes

Signature read: Entyce's 45.4% death-coded share is among the highest 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.
141
Total Reports
64
Deaths Reported
45.4%
Death-coded share of reports

Active Ingredients

Entyce

Administration Routes

UnknownOral

Species Affected

Dog 139
Cat 2

Most Affected Breeds

Retriever - Labrador 15
Shih Tzu 12
Retriever - Golden 10
Terrier - Yorkshire 9
Chihuahua 7
Bulldog - French 6
Spitz - German Pomeranian 6
Terrier (unspecified) 6
Dog (unknown) 5
Crossbred Canine/dog 4

Most Reported Reactions

Death by euthanasia 53
Lethargy (see also Central nervous system depression in Neurological) 50
Vomiting 40
Not eating 36
Diarrhoea 30
Decreased appetite 26
Anorexia 23
Weight loss 23
Elevated serum alkaline phosphatase (ALP) 23
Seizure NOS 19
Elevated alanine aminotransferase (ALT) 19
Leucocytosis NOS 16

Outcome Breakdown

Ongoing
62 (44.0%)
Euthanized
53 (37.6%)
Died
11 (7.8%)
Outcome Unknown
8 (5.7%)
Recovered/Normal
7 (5.0%)

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

Similar report volume

Nearest other drugs by FDA report count (141 here).

Similar death-coded share

Nearest other drugs by death-coded share (45.4% 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 Entyce (#648 of 2,679 by report volume); death-coded 45.4%. PlainBreed drug row · death-coded share stamp 45.4% · 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 →