Zeranol
131 adverse event reports submitted to the FDA
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
131
Total Reports
18
Deaths Reported
1370.0%
Death Rate
Active Ingredients
Zeranol
Administration Routes
UnknownSubcutaneousIntralesionalIntramuscular
Species Affected
Unknown 96
Cattle 30
Human 3
Sheep 1
Horse 1
Most Affected Breeds
Unknown 99
Crossbred Bovine/Cattle 9
Cattle (unknown) 7
Mixed (Cattle) 4
Aberdeen Angus 3
Cattle (other) 3
Holstein-Friesian also known as Holstein 2
Brangus 1
Cattle (unspecified) 1
Crossbred Ovine/sheep 1
Most Reported Reactions
Implant, Abnormal 61
Containers, Abnormal 32
Dispenser, Abnormal 21
Death 16
Anaphylaxis 4
Accidental exposure 4
Underfilling, Package 4
Respiratory tract disorder NOS 4
Dyspnoea 3
Unclassifiable adverse event 3
Injection site pain 3
Collapse (see also 'Cardio-vascular' and 'Systemic disorders') 2
Outcome Breakdown
Died
18 (75.0%)
Outcome Unknown
5 (20.8%)
Recovered/Normal
1 (4.2%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.