Drug profile

The FDA adverse-event record for Unspecified Antibiotic

208 FDA reports name Unspecified Antibiotic, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#530 of 2,679
by report volume (all drugs)
208
adverse-event reports
16.3%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Unspecified Antibiotic ranks #529 of 2679 by total reports (208) and #329 of 1130 by death-coded share (16.3%). 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)
#529
This drug, reports of 2679
#329
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. Unspecified Antibiotic has 208 reports now versus 206 in that prior snapshot: 2 more (1.0%).

Report change
+2
Death-coded reports
+0
Death-coded share
−0.2 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 Unspecified Antibiotic changes

Signature read: death-coded report count at 34 is the most distinctive stamp on Unspecified Antibiotic'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.
208
Total Reports
34
Deaths Reported
16.3%
Death-coded share of reports

Active Ingredients

Unspecified Antibiotic

Administration Routes

UnknownOralIntravenousSubcutaneousParenteralTopical

Species Affected

Dog 173
Cat 34
Cattle 1

Most Affected Breeds

Domestic Shorthair 22
Retriever - Labrador 21
Retriever - Golden 13
Shepherd Dog - Australian 9
Dachshund (unspecified) 7
Dog (unknown) 7
Shepherd Dog - German 7
Chihuahua 6
Terrier - Boston 6
Shih Tzu 4

Most Reported Reactions

Vomiting 40
Lethargy (see also Central nervous system depression in 'Neurological') 29
Diarrhoea 27
Death by euthanasia 23
Weight loss 20
Anorexia 18
Lethargy (see also Central nervous system depression in Neurological) 17
Panting 15
Decreased appetite 14
Ataxia 13
Behavioural disorder NOS 12
Leucocytosis NOS 11

Outcome Breakdown

Outcome Unknown
87 (41.6%)
Ongoing
44 (21.1%)
Recovered/Normal
43 (20.6%)
Euthanized
23 (11.0%)
Died
11 (5.3%)
Recovered with Sequela
1 (0.5%)

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

Similar death-coded share

Nearest other drugs by death-coded share (16.3% here), distinct from the volume row.

What to do with this drug

  • Compare Unspecified Antibiotic's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

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 Unspecified Antibiotic (#530 of 2,679 by report volume); death-coded 16.3%. PlainBreed drug row · death-coded report count stamp 34 · 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 →