Butorphanol Injectable
283 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.
283
Total Reports
51
Deaths Reported
1800.0%
Death Rate
Active Ingredients
Butorphanol Injectable
Administration Routes
UnknownIntramuscularIntravenousSubcutaneousOtherParenteral
Species Affected
Dog 116
Unknown 91
Cat 60
Horse 14
Human 2
Most Affected Breeds
Unknown 94
Domestic Shorthair 36
Dog (unknown) 19
Crossbred Canine/dog 19
Cat (unknown) 9
Quarter Horse 9
Retriever - Labrador 8
Domestic Mediumhair 6
Pit Bull 5
Shepherd Dog - Australian 5
Most Reported Reactions
Death 43
Bradycardia 23
Appearance, Abnormal 23
Closure, Abnormal 19
Cardiac arrest 18
Containers, Leaking 17
Cyanosis 13
Uncoded sign 12
Product problem 12
Drug administration error 12
Vials, Leaking 11
Lack of efficacy - NOS 11
Outcome Breakdown
Recovered/Normal
100 (51.3%)
Died
43 (22.1%)
Ongoing
31 (15.9%)
Outcome Unknown
11 (5.6%)
Euthanized
9 (4.6%)
Recovered with Sequela
1 (0.5%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.