Drug profile

The FDA adverse-event record for Sevoflurane

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

#199 of 2,679
by report volume (all drugs)
871
adverse-event reports
19.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Sevoflurane ranks #199 of 2679 by total reports (871) and #252 of 1130 by death-coded share (19.5%). 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)
#199
This drug, reports of 2679
#252
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. Sevoflurane has 871 reports now versus 856 in that prior snapshot: 15 more (1.8%).

Report change
+15
Death-coded reports
+2
Death-coded share
−0.1 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 Sevoflurane changes

Signature read: death-coded report count at 170 is the most distinctive stamp on Sevoflurane's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
871
Total Reports
170
Deaths Reported
19.5%
Death-coded share of reports

Active Ingredients

Sevoflurane

Administration Routes

Respiratory (Inhalation)UnknownNasalOtherIntravenousSubcutaneousEndotrachealTransdermalParenteral

Species Affected

Dog 514
Cat 283
Unknown 22
Human 14
Horse 11
Rabbit 5
Other 4
Guinea Pig 4
Ferret 3
Monkey 2

Most Affected Breeds

Domestic Shorthair 135
Unknown 66
Dog (unknown) 56
Retriever - Labrador 41
Cat (unknown) 36
Crossbred Canine/dog 28
Domestic Longhair 24
Chihuahua 22
Domestic (unspecified) 19
Terrier - Yorkshire 19

Most Reported Reactions

Death 122
Vomiting 104
Lethargy (see also Central nervous system depression in 'Neurological') 88
Anorexia 80
Bradycardia 70
Cardiac arrest 64
Not eating 52
Diarrhoea 49
INEFFECTIVE, ANESTHESIA 48
Behavioural disorder NOS 45
Hypothermia 44
Other abnormal test result NOS 42

Outcome Breakdown

Recovered/Normal
268 (35.8%)
Ongoing
205 (27.4%)
Died
131 (17.5%)
Outcome Unknown
101 (13.5%)
Euthanized
40 (5.3%)
Recovered with Sequela
3 (0.4%)

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

Similar death-coded share

Nearest other drugs by death-coded share (19.5% 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 Sevoflurane (#199 of 2,679 by report volume); death-coded 19.5%. PlainBreed drug row · death-coded report count stamp 170 · 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 →