Drug profile

The FDA adverse-event record for Zilpaterol Oral Powder

11 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Zilpaterol Oral Powder. See the species affected, top reactions, and outcomes below.

11
adverse-event reports
72.7%
death-coded share
Cattle
most-reported species
5
Death by euthanasia - 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.
11
Total Reports
8
Deaths Reported
72.7%
Death Rate

Active Ingredients

Zilpaterol Oral Powder

Administration Routes

OralUnknown

Species Affected

Cattle 7
Dog 2
Human 1
Horse 1

Most Affected Breeds

Cattle (other) 3
Crossbred Bovine/Cattle 3
Unknown 1
Cattle (unspecified) 1
Crossbred Canine/dog 1
Bulldog - French 1
Crossbred Equine/horse 1

Most Reported Reactions

Death by euthanasia 5
Death 3
Unclassifiable adverse event 2
Other abnormal test result NOS 2
Lameness 2
Trauma NOS 2
Tachycardia 2
Unrelated death 1
Respiratory signs 1
Not eating 1
Hair coat discolouration 1
Ruminal bloat 1

Outcome Breakdown

Euthanized
6 (42.9%)
Outcome Unknown
3 (21.4%)
Died
3 (21.4%)
Ongoing
1 (7.1%)
Recovered/Normal
1 (7.1%)

Zilpaterol Oral Powder Adverse Event Insights

11 reports name Zilpaterol Oral Powder; 8 recorded a death outcome (72.7% of reported events, not a population-level mortality rate). Active ingredient: Zilpaterol Oral Powder. Administration routes: Oral, Unknown.

By species: Cattle (7 reports), Dog (2 reports), Human (1 reports). By breed: Cattle (other) (3), Crossbred Bovine/Cattle (3), Unknown (1).

Leading clinical signs: Death by euthanasia (5), Death (3), Unclassifiable adverse event (2), Other abnormal test result NOS (2). Outcome, 14 coded reports: Euthanized leads at 42.9%.

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.