Imidacloprid
2,248 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.
2,248
Total Reports
67
Deaths Reported
300.0%
Death Rate
Active Ingredients
Imidacloprid
Administration Routes
OralTopicalUnknownCutaneousOther
Species Affected
Dog 1,855
Cat 216
Unknown 171
Human 3
Ferret 2
Chicken 1
Most Affected Breeds
Dog (unknown) 523
Unknown 175
Chihuahua 164
Domestic Shorthair 113
Retriever - Labrador 91
Pit Bull 91
Crossbred Canine/dog 85
Shih Tzu 74
Terrier - Yorkshire 70
Shepherd Dog - German 62
Most Reported Reactions
Lack of efficacy (ectoparasite) - flea 1,081
Pruritus 190
Lethargy (see also Central nervous system depression in 'Neurological') 178
Vomiting 135
Overdose 105
Behavioural disorder NOS 98
Diarrhoea 90
Anorexia 89
Emesis 76
Scratching 69
Ataxia 66
Emesis (multiple) 66
Outcome Breakdown
Outcome Unknown
1,498 (72.1%)
Recovered/Normal
279 (13.4%)
Ongoing
226 (10.9%)
Died
47 (2.3%)
Euthanized
20 (1.0%)
Recovered with Sequela
7 (0.3%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.