Drug profile

The FDA adverse-event record for Unknown Antibiotic Injection

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

12
adverse-event reports
16.7%
death-coded share
Cat
most-reported species
3
Weight loss - 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.
12
Total Reports
2
Deaths Reported
16.7%
Death Rate

Active Ingredients

Unknown Antibiotic Injection

Administration Routes

UnknownSubcutaneousTopical

Species Affected

Cat 9
Dog 3

Most Affected Breeds

Domestic Shorthair 5
Cat (other) 2
Terrier - Yorkshire 1
Retriever - Golden 1
Domestic Longhair 1
Maltese 1
Siberian 1

Most Reported Reactions

Weight loss 3
Vomiting 3
Lethargy (see also Central nervous system depression in 'Neurological') 3
Not eating 3
Anorexia 2
Crust 2
Haematuria 2
Skin lesion NOS 2
Not himself/herself 2
Melaena 1
Behavioural disorder NOS 1
Pemphigus foliaceus 1

Outcome Breakdown

Outcome Unknown
4 (33.3%)
Recovered/Normal
3 (25.0%)
Ongoing
3 (25.0%)
Euthanized
1 (8.3%)
Died
1 (8.3%)

Unknown Antibiotic Injection Adverse Event Insights

12 reports name Unknown Antibiotic Injection; 2 recorded a death outcome (16.7% of reported events, not a population-level mortality rate). Active ingredient: Unknown Antibiotic Injection. Administration routes: Unknown, Subcutaneous, Topical.

By species: Cat (9 reports), Dog (3 reports). By breed: Domestic Shorthair (5), Cat (other) (2), Terrier - Yorkshire (1).

Leading clinical signs: Weight loss (3), Vomiting (3), Lethargy (see also Central nervous system depression in 'Neurological') (3), Not eating (3). Outcome, 12 coded reports: Outcome Unknown leads at 33.3%.

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.