Drug profile

The FDA adverse-event record for Bravecto

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

#518 of 2,679
by report volume (all drugs)
221
adverse-event reports
9.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Bravecto ranks #518 of 2679 by total reports (221) and #565 of 1130 by death-coded share (9.5%). 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)
#518
This drug, reports of 2679
#565
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. Bravecto has 221 reports now versus 220 in that prior snapshot: 1 more (0.5%).

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 Bravecto changes

Signature read: 221 reports place Bravecto in the upper third of FDA AER volume (#518 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.
221
Total Reports
21
Deaths Reported
9.5%
Death-coded share of reports

Active Ingredients

Bravecto

Administration Routes

UnknownOralTopicalSubcutaneous

Species Affected

Dog 197
Cat 24

Most Affected Breeds

Retriever - Labrador 27
Domestic Shorthair 17
Retriever - Golden 17
Crossbred Canine/dog 13
Terrier - Bull - American Pit 12
Boxer (German Boxer) 9
Bulldog - French 9
Shepherd Dog - German 8
Terrier (unspecified) 6
Shepherd Dog - Australian 5

Most Reported Reactions

Vomiting 27
Lack of efficacy - NOS 26
Seizure NOS 24
Diarrhoea 15
Ataxia 15
Intentional misuse 14
Not eating 12
Elevated serum alkaline phosphatase (ALP) 12
Lethargy (see also Central nervous system depression in Neurological) 12
Death 10
Lethargy (see also Central nervous system depression in 'Neurological') 10
Anorexia 10

Outcome Breakdown

Ongoing
144 (65.2%)
Recovered/Normal
34 (15.4%)
Outcome Unknown
22 (10.0%)
Died
11 (5.0%)
Euthanized
10 (4.5%)

Bravecto: 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 Bravecto, 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 Bravecto (#518 of 2,679 by report volume); death-coded 9.5%. PlainBreed drug row · report volume stamp 221 · 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 →