Pentobarbital/Phenytoin Inj
98 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.
98
Total Reports
79
Deaths Reported
8060.0%
Death Rate
Active Ingredients
Pentobarbital/Phenytoin Inj
Administration Routes
IntravenousUnknownSubcutaneousOtherTopicalIntraperitonealRespiratory (Inhalation)OphthalmicIntramuscularOral
Species Affected
Dog 58
Cat 15
Human 11
Unknown 7
Horse 5
Other Birds 1
Duck 1
Most Affected Breeds
Unknown 19
Domestic Shorthair 11
Dog (unknown) 8
Crossbred Canine/dog 7
Shepherd Dog - German 4
Mixed (Dog) 4
Retriever - Golden 4
Retriever - Labrador 3
Shih Tzu 3
Horse (unknown) 2
Most Reported Reactions
INEFFECTIVE, EUTHANASIA 60
Overdose 39
Unrelated death 33
Vocalisation 24
Lack of efficacy - NOS 18
Agitation 10
Death by euthanasia 9
INEFFECTIVE, DELAYED EFFECT 8
Pain NOS 7
Accidental exposure 7
Solution, Abnormal 5
Drug administration error 5
Outcome Breakdown
Euthanized
79 (86.8%)
Ongoing
8 (8.8%)
Recovered/Normal
3 (3.3%)
Outcome Unknown
1 (1.1%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.