Drug profile

The FDA adverse-event record for Oxytetracycline Hcl;Polymyxin B Sulfate

13 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Oxytetracycline Hcl;Polymyxin B Sulfate. See the species affected, top reactions, and outcomes below.

13
adverse-event reports
7.7%
death-coded share
Cat
most-reported species
3
Ocular discharge - 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.
13
Total Reports
1
Deaths Reported
7.7%
Death Rate

Active Ingredients

Oxytetracycline Hcl;Polymyxin B Sulfate

Administration Routes

UnknownOphthalmicIntraocular

Species Affected

Cat 8
Unknown 4
Dog 1

Most Affected Breeds

Domestic Shorthair 4
Unknown 4
Cat (other) 2
Ragdoll 1
Dog (unknown) 1
Norwegian Forest 1

Most Reported Reactions

Ocular discharge 3
Eye redness 2
Containers, Leaking 2
Tubes, Leaking 2
Distress 1
Behavioural disorder NOS 1
Hyperactivity 1
Fever 1
Facial swelling (see also Skin) 1
Itching 1
Respiratory distress 1
Vomiting 1

Outcome Breakdown

Ongoing
4 (44.4%)
Recovered/Normal
3 (33.3%)
Died
1 (11.1%)
Outcome Unknown
1 (11.1%)

Oxytetracycline Hcl;Polymyxin B Sulfate Adverse Event Insights

13 reports name Oxytetracycline Hcl;Polymyxin B Sulfate; 1 recorded a death outcome (7.7% of reported events, not a population-level mortality rate). Active ingredient: Oxytetracycline Hcl;Polymyxin B Sulfate. Administration routes: Unknown, Ophthalmic, Intraocular.

By species: Cat (8 reports), Unknown (4 reports), Dog (1 reports). By breed: Domestic Shorthair (4), Unknown (4), Cat (other) (2).

Leading clinical signs: Ocular discharge (3), Eye redness (2), Containers, Leaking (2), Tubes, Leaking (2). Outcome, 9 coded reports: Ongoing leads at 44.4%.

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.