Pentobarbital, Phenytoin

185 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.

185

Total Reports

138

Deaths Reported

7460.0%

Death Rate

Active Ingredients

Pentobarbital, Phenytoin

Administration Routes

IntravenousUnknownSubcutaneousOralTopicalOtherOphthalmicIntracardiacIntraperitonealIntramuscular

Species Affected

Dog 100

Cat 34

Unknown 20

Human 16

Horse 10

Other 2

Sheep 1

Rabbit 1

Cattle 1

Most Affected Breeds

Unknown 38

Mixed (Dog) 28

Dog (unknown) 25

Domestic (unspecified) 15

Crossbred Canine/dog 13

Cat (unknown) 13

Retriever - Labrador 9

Shepherd Dog - German 4

Rottweiler 4

Mixed (Horse) 3

Most Reported Reactions

Death by euthanasia 80

INEFFECTIVE, EUTHANASIA 74

INEFFECTIVE, DELAYED EFFECT 64

Unclassifiable adverse event 23

Accidental exposure 22

Injection site pain 8

Vocalisation 7

Solution, Abnormal 6

Vials, Damaged 5

Vials, Abnormal 5

Hypothermia 4

Eye irritation 4

Outcome Breakdown

Died

132 (95.0%)

Euthanized

6 (4.3%)

Outcome Unknown

1 (0.7%)

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