Drug profile

The FDA adverse-event record for Baytril

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

85
adverse-event reports
47.1%
death-coded share
Dog
most-reported species
23
Death - 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.
85
Total Reports
40
Deaths Reported
47.1%
Death Rate

Active Ingredients

Baytril

Administration Routes

UnknownOralSubcutaneousIntravenousAuricular (Otic)

Species Affected

Dog 67
Cattle 12
Cat 6

Most Affected Breeds

Mixed (Cattle) 12
Crossbred Canine/dog 9
Terrier - Bull - American Pit 9
Retriever - Labrador 6
Retriever - Golden 6
Pug 5
Domestic Shorthair 4
Dachshund - Miniature 2
Terrier (unspecified) 2
Chow Chow 2

Most Reported Reactions

Death 23
Death by euthanasia 17
Vomiting 16
Lack of efficacy - NOS 16
Not eating 15
Lethargy (see also Central nervous system depression in Neurological) 14
Weight loss 12
Fever 10
Ataxia 10
Anorexia 9
Abnormal radiograph finding 9
Urinary tract infection 9

Outcome Breakdown

Ongoing
32 (33.3%)
Died
22 (22.9%)
Euthanized
18 (18.8%)
Outcome Unknown
18 (18.8%)
Recovered/Normal
6 (6.3%)

Baytril Adverse Event Insights

85 reports name Baytril; 40 recorded a death outcome (47.1% of reported events, not a population-level mortality rate). Active ingredient: Baytril. Administration routes: Unknown, Oral, Subcutaneous, Intravenous.

By species: Dog (67 reports), Cattle (12 reports), Cat (6 reports). By breed: Mixed (Cattle) (12), Crossbred Canine/dog (9), Terrier - Bull - American Pit (9).

Leading clinical signs: Death (23), Death by euthanasia (17), Vomiting (16), Lack of efficacy - NOS (16). Outcome, 96 coded reports: Ongoing 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.