Lactulose
265 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.
265
Total Reports
54
Deaths Reported
2040.0%
Death Rate
Active Ingredients
Lactulose
Administration Routes
OralUnknownRectalOtherSubcutaneous
Species Affected
Cat 175
Dog 88
Human 1
Other Birds 1
Most Affected Breeds
Domestic Shorthair 114
Terrier - Yorkshire 19
Domestic Mediumhair 11
Chihuahua 8
Cat (other) 8
Cat (unknown) 7
Domestic Longhair 7
Retriever - Labrador 5
Schnauzer - Miniature 5
Shepherd Dog - German 5
Most Reported Reactions
Vomiting 46
Lethargy (see also Central nervous system depression in 'Neurological') 45
Death by euthanasia 33
Anorexia 31
Constipation 29
Weight loss 27
Other abnormal test result NOS 27
Diarrhoea 25
Seizure NOS 25
Decreased appetite 25
Ataxia 22
Lack of efficacy - NOS 21
Outcome Breakdown
Ongoing
92 (34.7%)
Outcome Unknown
60 (22.6%)
Recovered/Normal
59 (22.3%)
Euthanized
33 (12.5%)
Died
21 (7.9%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.