Drug profile

The FDA adverse-event record for Unspecified Antibiotic

203 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Unspecified Antibiotic. See the species affected, top reactions, and outcomes below.

203
adverse-event reports
15.8%
death-coded share
Dog
most-reported species
39
Vomiting - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
203
Total Reports
32
Deaths Reported
15.8%
Death Rate

Active Ingredients

Unspecified Antibiotic

Administration Routes

UnknownOralIntravenousSubcutaneousParenteralTopical

Species Affected

Dog 169
Cat 33
Cattle 1

Most Affected Breeds

Retriever - Labrador 21
Domestic Shorthair 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 39
Lethargy (see also Central nervous system depression in 'Neurological') 29
Diarrhoea 26
Death by euthanasia 22
Weight loss 18
Anorexia 18
Lethargy (see also Central nervous system depression in Neurological) 17
Panting 15
Decreased appetite 14
Behavioural disorder NOS 12
Ataxia 12
Shaking 11

Outcome Breakdown

Outcome Unknown
84 (41.2%)
Ongoing
44 (21.6%)
Recovered/Normal
43 (21.1%)
Euthanized
22 (10.8%)
Died
10 (4.9%)
Recovered with Sequela
1 (0.5%)

Unspecified Antibiotic Adverse Event Insights

203 reports name Unspecified Antibiotic; 32 recorded a death outcome (15.8% of reported events, not a population-level mortality rate). Active ingredient: Unspecified Antibiotic. Administration routes: Unknown, Oral, Intravenous, Subcutaneous.

By species: Dog (169 reports), Cat (33 reports), Cattle (1 reports). By breed: Retriever - Labrador (21), Domestic Shorthair (21), Retriever - Golden (13).

Leading clinical signs: Vomiting (39), Lethargy (see also Central nervous system depression in 'Neurological') (29), Diarrhoea (26), Death by euthanasia (22). Outcome, 204 coded reports: Outcome Unknown leads at 41.2%.

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.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.