Drug profile

The FDA adverse-event record for Unknown Medications

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

36
adverse-event reports
36.1%
death-coded share
Dog
most-reported species
8
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.
36
Total Reports
13
Deaths Reported
36.1%
Death Rate

Active Ingredients

Unknown Medications

Administration Routes

UnknownOralTopical

Species Affected

Dog 28
Cat 6
Horse 1
Rabbit 1

Most Affected Breeds

Shepherd Dog - Australian 4
Domestic Shorthair 4
Dog (unknown) 3
Crossbred Canine/dog 2
Terrier - Yorkshire 1
Papillon - Spaniel - Continental Toy (with erect ears or with dropped ears (Phaléne)) 1
Poodle - Miniature 1
Spitz - German Pomeranian 1
Terrier - Bull 1
Domestic Mediumhair 1

Most Reported Reactions

Death 8
Death by euthanasia 5
Lethargy (see also Central nervous system depression in 'Neurological') 4
Pruritus 4
Vomiting 4
Diarrhoea 3
Hiding 3
Anorexia 3
Drug administration error 3
Bacterial skin infection NOS 2
Cough 2
Behavioural disorder NOS 2

Outcome Breakdown

Outcome Unknown
19 (52.8%)
Died
8 (22.2%)
Euthanized
5 (13.9%)
Recovered/Normal
3 (8.3%)
Ongoing
1 (2.8%)

Unknown Medications Adverse Event Insights

36 reports name Unknown Medications; 13 recorded a death outcome (36.1% of reported events, not a population-level mortality rate). Active ingredient: Unknown Medications. Administration routes: Unknown, Oral, Topical.

By species: Dog (28 reports), Cat (6 reports), Horse (1 reports). By breed: Shepherd Dog - Australian (4), Domestic Shorthair (4), Dog (unknown) (3).

Leading clinical signs: Death (8), Death by euthanasia (5), Lethargy (see also Central nervous system depression in 'Neurological') (4), Pruritus (4). Outcome, 36 coded reports: Outcome Unknown leads at 52.8%.

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.