Butorphanol Tartrate Injection

25 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.

Total Reports

Deaths Reported

4000.0%

Death Rate

Active Ingredients

Butorphanol Tartrate Injection

Administration Routes

IntravenousIntramuscularUnknown

Species Affected

Dog 16

Horse 7

Human 1

Cat 1

Most Affected Breeds

Quarter Horse 5

Pit Bull 2

Siberian Husky 2

Shepherd Dog - German 2

Dog (unknown) 2

Schnauzer - Miniature 2

Terrier (unspecified) 1

Chihuahua 1

Mastiff 1

Great Pyrenees 1

Most Reported Reactions

Lack of efficacy - NOS 8

Death by euthanasia 6

Unrelated death 5

Ataxia 5

Seizure NOS 4

Anaphylaxis 4

Collapse (see also Cardio-vascular and Systemic disorders) 4

Pale mucous membrane 4

Death 4

Respiratory arrest 3

Cardiac arrest 2

Underdose 2

Outcome Breakdown

Recovered/Normal

10 (40.0%)

Euthanized

6 (24.0%)

Ongoing

4 (16.0%)

Died

4 (16.0%)

Outcome Unknown

1 (4.0%)

Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.