Zeranol Implant
102 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.
102
Total Reports
34
Deaths Reported
3330.0%
Death Rate
Active Ingredients
Zeranol Implant
Administration Routes
UnknownSubcutaneousParenteralOther
Species Affected
Cattle 52
Unknown 44
Human 6
Most Affected Breeds
Unknown 50
Cattle (other) 22
Aberdeen Angus 11
Crossbred Bovine/Cattle 10
Red Angus 4
Holstein-Friesian also known as Holstein 2
Cattle (unknown) 1
Charolais 1
Cattle (unspecified) 1
Most Reported Reactions
Death 30
Lack of efficacy - NOS 18
Product problem 17
Uncoded sign 16
Device Defective NOS 15
Product Defect, General 12
Dispenser, Abnormal 9
Lack of efficacy (bacteria) - NOS 7
Containers, Damaged 6
Difficulty of Use 6
Implant, Abnormal 5
Lateral recumbency 4
Outcome Breakdown
Died
33 (37.9%)
Ongoing
20 (23.0%)
Outcome Unknown
17 (19.5%)
Recovered/Normal
13 (14.9%)
Euthanized
3 (3.4%)
Recovered with Sequela
1 (1.1%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.