Drug profile

The FDA adverse-event record for Buprenorphine Hcl

258 FDA reports name Buprenorphine Hcl, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#465 of 2,679
by report volume (all drugs)
258
adverse-event reports
32.2%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Buprenorphine Hcl ranks #465 of 2679 by total reports (258) and #113 of 1130 by death-coded share (32.2%). 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)
#465
This drug, reports of 2679
#113
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. Buprenorphine Hcl has 258 reports now versus 258 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
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 Buprenorphine Hcl changes

Signature read: death-coded report count at 83 is the most distinctive stamp on Buprenorphine Hcl'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.
258
Total Reports
83
Deaths Reported
32.2%
Death-coded share of reports

Active Ingredients

Buprenorphine Hcl

Administration Routes

UnknownIntramuscularSubcutaneousIntravenousOral

Species Affected

Dog 141
Cat 115
Guinea Pig 1
Rabbit 1

Most Affected Breeds

Domestic Shorthair 75
Retriever - Labrador 14
Domestic Longhair 14
Dog (unknown) 10
Cat (unknown) 7
Schnauzer - Miniature 7
Chihuahua 6
Domestic Mediumhair 6
Terrier - Bull - American Pit 6
Shih Tzu 5

Most Reported Reactions

Vomiting 47
Lethargy (see also Central nervous system depression in 'Neurological') 47
Other abnormal test result NOS 46
Death by euthanasia 45
Anorexia 38
Death 37
Elevated alanine aminotransferase (ALT) 26
Fever 25
Elevated serum alkaline phosphatase (SAP) 24
Emesis 23
Diarrhoea 22
Abnormal radiograph finding 22

Outcome Breakdown

Ongoing
98 (37.8%)
Recovered/Normal
62 (23.9%)
Euthanized
44 (17.0%)
Died
39 (15.1%)
Outcome Unknown
15 (5.8%)
Recovered with Sequela
1 (0.4%)

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

Similar report volume

Nearest other drugs by FDA report count (258 here).

Similar death-coded share

Nearest other drugs by death-coded share (32.2% 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 Buprenorphine Hcl (#465 of 2,679 by report volume); death-coded 32.2%. PlainBreed drug row · death-coded report count stamp 83 · 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 →