Drug profile

The FDA adverse-event record for Ampicillin/Sulbactam

30 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Ampicillin/Sulbactam. See the species affected, top reactions, and outcomes below.

30
adverse-event reports
20.0%
death-coded share
Dog
most-reported species
15
Elevated total bilirubin - 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.
30
Total Reports
6
Deaths Reported
20.0%
Death Rate

Active Ingredients

Ampicillin/Sulbactam

Administration Routes

IntravenousUnknownOral

Species Affected

Dog 23
Cat 6
Cattle 1

Most Affected Breeds

Domestic Shorthair 5
Crossbred Canine/dog 4
Siberian Husky 4
Retriever - Labrador 3
Mixed (Dog) 1
Bloodhound 1
Maine Coon 1
Alaskan Malamute 1
Retriever - Golden 1
Chihuahua 1

Most Reported Reactions

Elevated total bilirubin 15
Abnormal ultrasound finding 14
Elevated creatinine 13
Hypokalaemia 12
Elevated serum alkaline phosphatase (ALP) 11
Other abnormal test result NOS 10
Elevated alanine aminotransferase (ALT) 10
Hyperglycaemia 9
Decreased appetite 9
Elevated blood urea nitrogen (BUN) 8
Leucocytosis NOS 8
Dehydration 7

Outcome Breakdown

Recovered/Normal
8 (26.7%)
Outcome Unknown
8 (26.7%)
Ongoing
8 (26.7%)
Euthanized
4 (13.3%)
Died
2 (6.7%)

Ampicillin/Sulbactam Adverse Event Insights

30 reports name Ampicillin/Sulbactam; 6 recorded a death outcome (20.0% of reported events, not a population-level mortality rate). Active ingredient: Ampicillin/Sulbactam. Administration routes: Intravenous, Unknown, Oral.

By species: Dog (23 reports), Cat (6 reports), Cattle (1 reports). By breed: Domestic Shorthair (5), Crossbred Canine/dog (4), Siberian Husky (4).

Leading clinical signs: Elevated total bilirubin (15), Abnormal ultrasound finding (14), Elevated creatinine (13), Hypokalaemia (12). Outcome, 30 coded reports: Recovered/Normal leads at 26.7%.

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.