Azathioprine
104 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.
104
Total Reports
33
Deaths Reported
3170.0%
Death Rate
Active Ingredients
Azathioprine
Administration Routes
OralUnknown
Species Affected
Dog 104
Most Affected Breeds
Retriever - Labrador 10
Shepherd Dog - German 7
Crossbred Canine/dog 6
Retriever - Golden 5
Shih Tzu 5
Spaniel - Cocker American 4
Shepherd Dog - Australian 4
Boxer (German Boxer) 3
Chihuahua 3
Terrier - Jack Russell 3
Most Reported Reactions
Lethargy (see also Central nervous system depression in 'Neurological') 26
Elevated serum alkaline phosphatase (SAP) 21
Anaemia NOS 20
Vomiting 19
Death by euthanasia 19
Immune mediated haemolytic anaemia 19
Other abnormal test result NOS 18
Diarrhoea 18
Leucocytosis NOS 17
Elevated alanine aminotransferase (ALT) 16
Thrombocytopenia 16
Anorexia 15
Outcome Breakdown
Ongoing
27 (27.8%)
Euthanized
19 (19.6%)
Recovered/Normal
17 (17.5%)
Outcome Unknown
16 (16.5%)
Died
14 (14.4%)
Recovered with Sequela
4 (4.1%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.