Vitamin K1
79 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.
79
Total Reports
48
Deaths Reported
6080.0%
Death Rate
Active Ingredients
Vitamin K1
Administration Routes
UnknownOralSubcutaneous
Species Affected
Dog 69
Cat 10
Most Affected Breeds
Retriever - Labrador 20
Domestic Shorthair 8
Terrier - Bull - American Pit 3
Crossbred Canine/dog 3
Boxer (German Boxer) 3
Maltese 2
Griffon - Brussels 2
Shepherd (unspecified) 2
Mixed (Dog) 2
Domestic Longhair 2
Most Reported Reactions
Vomiting 41
Lethargy (see also Central nervous system depression in 'Neurological') 37
Other abnormal test result NOS 34
Death by euthanasia 30
Elevated total bilirubin 29
Anaemia NOS 28
Thrombocytopenia 28
Elevated alanine aminotransferase (ALT) 28
Anorexia 23
Elevated serum alkaline phosphatase (SAP) 23
Leucocytosis NOS 21
Elevated liver enzymes 21
Outcome Breakdown
Euthanized
30 (38.0%)
Ongoing
26 (32.9%)
Died
18 (22.8%)
Recovered/Normal
5 (6.3%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.