Drug profile

The FDA adverse-event record for Orbifloxacin

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

469
adverse-event reports
16.8%
death-coded share
Cat
most-reported species
71
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.
469
Total Reports
79
Deaths Reported
16.8%
Death Rate

Active Ingredients

Orbifloxacin

Administration Routes

OralUnknownOphthalmicIntraocularAuricular (Otic)Intravenous

Species Affected

Cat 288
Unknown 89
Dog 86
Guinea Pig 2
Other 1
Human 1
Bobcat 1
Rabbit 1

Most Affected Breeds

Domestic (unspecified) 133
Unknown 94
Domestic Shorthair 83
Domestic Longhair 12
Maine Coon 10
Chihuahua 10
Crossbred Canine/dog 9
Siamese 9
Cat (unknown) 9
Shih Tzu 7

Most Reported Reactions

Vomiting 71
Anorexia 67
Lethargy (see also Central nervous system depression in 'Neurological') 43
Death 40
Blindness 39
Death by euthanasia 38
Ataxia 37
Vials, Damaged 35
Depression 35
Weight loss 29
Diarrhoea 26
Anaemia NOS 25

Outcome Breakdown

Died
62 (28.1%)
Ongoing
59 (26.7%)
Outcome Unknown
48 (21.7%)
Recovered/Normal
32 (14.5%)
Euthanized
17 (7.7%)
Recovered with Sequela
3 (1.4%)

Orbifloxacin Adverse Event Insights

469 reports name Orbifloxacin; 79 recorded a death outcome (16.8% of reported events, not a population-level mortality rate). Active ingredient: Orbifloxacin. Administration routes: Oral, Unknown, Ophthalmic, Intraocular.

By species: Cat (288 reports), Unknown (89 reports), Dog (86 reports). By breed: Domestic (unspecified) (133), Unknown (94), Domestic Shorthair (83).

Leading clinical signs: Vomiting (71), Anorexia (67), Lethargy (see also Central nervous system depression in 'Neurological') (43), Death (40). Outcome, 221 coded reports: Died leads at 28.1%.

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.